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Magnaflow Direct-Fit Standard Grade Catted Tru-X X-Pipe (99-04 4.6L)

Item 48026
Market Price $799.96 You Save 12% ($92.03)
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    Features, Video & Details

    • Improves Exhaust Flow for More Power
    • Raspy Race Car Growl
    • High-Flow Ceramic Catalytic Converters Included
    • 2.5 inch Mandrel-Bent Stainless Steel Tubing
    • Is NOT CARB Certified
    • Fits 1999-2004 GT, Bullitt, Mach 1 and SVT Cobra

    Review & Installation Video

    Review & Install Video

    Justin: The Magnaflow Catted Tru-X X-Pipe here will be a great option for the '99 to '04 4.6-liter V8 owners out there who either have the stock manifold still in place or even a set of aftermarket shorty headers and are simply looking to upgrade to an aftermarket option to increase the sound and even the performance of your exhaust system, but would still like to maintain a set of high flow cats as opposed to going with something off-road. Now, the Tru-X pipe here will feature a full stainless steel build, guys, 409 grade stainless to be exact, 2.5-inch mandrel bent tubing, all of your O2 bungs have already been pre-welded for you. And it's going to land at right around that $700 price point. Installation is gonna get a two out of three wrenches here on the difficulty meter and take a couple of hours to complete from start to finish. But if you hang until the end of the video, we'll show you how it's done.So, there's a couple of reasons to upgrade the mid-pipe on your SN95 to a high flow cat adoption such as this piece from Magnaflow. Maybe you're after a little bit more sound, maybe a little bit more performance, maybe a little bit of both or maybe your factory mid-pipe has just been absolutely trashed and needs to be fixed. Whatever the case, guys, the Tru-X that we have here from Magnaflow should help in every aspect. Let's briefly talk sound profile and volume levels here with the Magnaflow Catted Tru-X X-Pipe. And one to five one to wake the neighbor scale again, one essentially being a stock exhaust, I have the X-Pipe coming in by itself at a pretty strong two out of five on the wake the neighbor's scale. However, as you heard with those sound clips, you are also getting a healthy amount of rasp in addition to some crackles and pops coming down off the revs. We then installed an aftermarket axle back with the Magnaflow X-Pipe in place, reran those sound clips and as you might imagine, picked up a little bit more volume. So, going back to the wake the neighbor scale, I have this combo coming in at a robust four out of five on that one to five or one to wake the neighbor's scale.Now, this is going to be an improvement because yes, you are replacing the 20 plus-year-old cats on your SN95 with a set of high flow options here from Magnaflow. But I don't want you guys to think that this is going to single-handedly set the world on fire in regards to massive power gains, but you still should see a nice little bump in power thanks to the less restriction in addition to the X-Pipe design. But one big thing to point out here, guys, is the fact that this is a stock link mid-pipe. So, if you have your stock headers or manifolds still in place or even a set of aftermarket shorty headers, you're going to be in business here with the Magnaflow option. However, if you do have a set of long tubes on the car or maybe thinking of grabbing some at the same time of the purchase, well, then you're gonna need to check out a shorty mid-pipe instead, which unfortunately Magnaflow doesn't offer currently at this time on the site, but you will find some other options from BBK or even cooks if you are looking for a shorty mid-pipe.Now, as far as your construction is concerned, well, Magnaflow usually delivers the goods from start to finish and that is going to be the case here as well. Full stainless steel build throughout, 409 grade to be exact along the 2.5-inch mandrel-bent tubing throughout. Unfortunately, at this time, this mid-pipe is not carb certified so owners in California will need to be aware of that. But on the flip side, this thing does not require any custom tuning or anything out of the ordinary there. But as promised, we wanna show you guys how it gets installed and again, depending on the condition of your manifold bolts, they can be a bit rusty, especially if you live in the northeast, this one might be a little bit tricky. So, with that in mind, you might just wanna have some heat on hand or maybe a bottle of your favorite penetrating oil. But for a full breakdown of how things are gonna go down, here is that detailed walkthrough along with a quick tool breakdown.Man: Tools required for this installation: A three-inch drive, various extensions, a swivel socket is very helpful, a deep and a short 15, a 22-inch open end wrench for your O2 sensors. PB B'laster the night before is very helpful. Optional is an impact.Our first step to get our factory H-Pipe out of the way is to disconnect our O2 sensors. We have two in the back here and then two in the front right next to our transmission and bell housing. And what I did was the night before I sprayed all of our O2 sensors down with PB B'laster and the mounting bolts to the flanges of our headers. So, the ones in the rear here are color-coded and like I said, there is a little tab on the top, just depress that and pull straight back. Now, we're gonna get the ones in the front. All right. So, this is the passenger's side front O2 sensor, I'm just gonna disconnect this and then do the same thing on the driver side. It is a little tough to see, so you're gonna do this by feel, but feel for that tab and then pull straight back. All right. Now, we're gonna take a little time while we have the leverage to break free our O2 sensors. This is a 22-millimeter wrench and just like that, they are broke free. Do this to all four. So, when it's on the ground, you're not fumbling around.Now, we're gonna break these front O2 sensors free as well. All right. That should be good there. Let's get the other one. All right. So, what I have here is a pole jack and a pry bar and what I'm doing is just supporting our mufflers from the H-Pipe back just like that. I don't wanna put too much tension on it. And then I'm gonna take my 15-millimeter socket here and just break free these clamps. All right. So, what we're gonna do now is remove the nuts that are holding our factory H-Pipe to our exhaust manifolds. I have a deep socket with a universal swivel and a couple of extensions. And again, that PB B'laster the night before will do wonders. So, I'm gonna remove that nut completely and then get the nut on the top as well. All right. And there's that nut. Let's move to the passenger's side now.All right. So, I have a buddy over here, Joe to help me out on the heavy lifting side of it. He's towards the H-Pipes back there, he's gonna remove those nuts that I left only a couple of threads on and then I'm gonna remove the passenger side nuts for our exhaust manifolds. So, these are tough to see. There's one right behind the starter here. That one came off nice. And then I'm going to support the driver's side downpipe here from the manifold and I'm gonna bring it down in one unit. All right. So, what we're gonna do now is move our O2 sensors from our stock H-Pipe to our new X-Pipe. And you can see some of the key differences here, our six cats go into our two. It's pretty sweet. We're just gonna do one at a time just to make sure we're not mixing up our O2 sensors and make sure that threads on nice. And you can either tighten them down here or on the vehicle. I'm going to tighten them down just a little bit here. All right. Now, the X-Pipe is ready to be installed back on to the Mustang.All right. So, I got Joe back over here. You are going to put this X-Pipe in. It's a little tricky, you got to get the right angle and make sure that flange clears the starter and bell housing there. All right. I'm also gonna bring in another pole jack here to support this X-Pipe section. Just like that, and I'm going to put a couple of nuts on our flanges. All right. So, you can see that we started the nut on the bottom here on the driver side. Now, I took my impact off. I'm just gonna start this nut on the top. Make sure the threads are nice and even and it's not going in cross threaded. Now, I'm just gonna snug these up by hand first, get the passenger side nuts on and then get my impact and start tightening them up. Let's go over to the passenger side now.All right. Let's start the nuts on our passenger side. We are reusing these factory nuts. That one's not going on their square, so I'm going to get a short socket real quick. And then I'm gonna try to get this top one as well. All right. So, I have my impact back out, I'm going to snug up the nuts on the passenger's side first. I'm gonna go ahead and get the one on top now and go on the inside of this O2 sensor though. All right. So, we're back over at the driver side. Let's tighten up these nuts now. All right. So, let's go ahead and attach our tailpipe and muffler section to our new X-Pipe. We are gonna use the new hardware they supplied us with. They are 15-millimeter nuts, so let's just start these threads. Now, this is the factory cat-back exhaust. A little later on we will put a cat-back on it so you can hear the difference with two cat X-Pipe and our cat-back on it and you can also hear what it sounds like with our stock exhaust on it. So, let's tighten up these.All right. So, what we're gonna do is try to tighten up these flanges as even as we can. All right. Now, with our flanges bolted up, let's remove our pole jack and start making some of those O2 connections. All right. Again, these are color-coded so we won't mix them up. And the ones in the front are going to be very tough to see, so let's get those ones done now. All right. Let's go ahead and connect this passenger's side front O2 sensor. It is going to be very tough to see on camera and you're gonna have to do it by feel. But you can feel where the clip is on the male and female electrical side. Just make sure that they slide in and clip, just like that. Give it a little tug just to make sure that it's seated and that's good. All right. Moving on to the driver's side, let's connect this forward O2 sensor. Again, this is going to be by feel because you've got to find the plug first, make sure it's in the correct orientation.All right, guys. That's gonna wrap up my install of the Magnaflow Catted X-Pipe for this Mustang. And for all things Mustang, keep it here at

    Improves Exhaust Flow. Magnaflow's X-Pipe uses free-flowing mandrel-bent piping with a Tru-X "X" style crossover and high-flow catalytic converters to improve exhaust flow and to produce significantly more horsepower and torque at the rear wheels than the restrictive stock catted H-pipe.

    Race Car Growl. This free flowing Magnaflow Tru-X X-pipe for the 1999 to 2004 4.6L Mustang's not only increases power, but with its modern "X" crossover pipe design it also adds a crisp raspy, race car growl to the sound of your exhaust.

    Magnaflow High Flow Construction. Magnaflow uses 2.5 inch mandrel bent stainless steel tubing that has a consistent diameter throughout the length of the pipe, even at the bends to provide excellent exhaust flow that results in more power at the rear wheels. The included high flow ceramic catalytic converters far out perform the restrictive stock cats to provide a significant increase in horsepower and torque.

    Application. This Magnaflow Tru-X Catted X-pipe is designed as a direct bolt-on for the 1999-2004 GT, 2001 Bullitt, 2003-2004 Mach 1 and 1999-2004 SVT Cobra Mustangs with either aftermarket short tube headers or the stock manifolds and a dual catback exhaust installed.

    Application Note. 2004 Mustangs require the use of 24 inch O2 sensor plug-in extender wires.

    Technical Note.
    This Magnaflow Catted X-Pipe is not legal for use in California or other states adopting California emission standards.

    Fitment: 1999 2000 2001 2002 2003 2004 Details

    MPN# 93335

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    Hardware included:
    • (4) nuts already threaded on for catback connection
    • **reuses stock header connection hardware**
    Installation Info
    Tech Specs
    Mid Pipe Specifications
    Style Mid Pipe: Standard length "X" Type Headers Required: Shorty or stock manifolds
    Piping Material: Stainless Steel Piping Size: 2.5"
    Catalytic Converter: "Yes" Fitment: 1999-2004 GT, Bullitt, Mach 1 and Cobra Mustangs
    Will it fit my Mustang?

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        Questions & Answers (17)

        5 Top Rated Questions

        Is a tune required when replacing the stock cat system? I am thinking of replacing the stock catted system with a Magnaflow catted X-pipe set up. Is a re-tune required with the new system? Thanks. Dick

        • No. You don't have to do a tune for the exhaust system. Now if you were doing headers and a full system with a cold air kid I would advise it because you will maximize you upgrades that way, but if your just putting on the xpipe you don't need to.

        Helpful (4) Show 2 more answers

        Is this CA legal ?

        • The Magnaflow Catted Tru-X X-Pipe has not be tested or approved by the California Air Resource Board (CARB) meaning this is not legal for use upon highway in the state of California.

        Helpful (3)

        I have Borla stingers on my 03 Cobra. A couple of years ago, I had it modified with a 2.76 pulley, 60lb injectors and a custom dyno tune. Before the tune, my mechanic talked me into taking the factory cats off and installing a MAC ProChamber. Ever since then, I have not been happy with the sound of the Borla stinger/ MAC ProChamber combo. It is way too loud and too raspy for my taste! Prior to taking the OEM cats off, I would receive compliments on how the Borlas sound. Not now! If I put the Magnaflow Tru-X X-Pipe on, will I have to get a retune?,,,,,,Thanks!

        • Yes, installing this would require a retune for your setup.

        Helpful (1)

        Is this CA legal?

        • This x pipe is NOT CARB approved. I've been looking for an x pipe that is Ca legal but so far haven't found any.

        Helpful (1)

        will this go with bbk headers

        • This will work with BBK shorty headers yes.

        Helpful (0)
        Post Your Question
        10 More Questions
        I bought an 03 Cobra that has been dyno-tuned for a non-catted x-pipe. I purchased the Magnaflow Catted Tru-X X-pipe because my state requires catalytic converters for inspection. I'm getting ready to have the Magnaflow mid pipe installed. Will I need to get my car re-tuned or can I safely just replace the non-catted Xpipe with the catted Magnaflow Xpipe? BTW, the Magnaflow midpipe is a nice piece but the weld around the passenger side flange was very thin. 1 answer
        Have an O4 Cobra Stock Headers and magnaflow catback with an offload H pipe and stage 3 comp cams and wanna tone it down since its a bit too loud will these high flow cats clog or be blown with my mods? 1 answer
        I saw a review this was paired with the Borla Ataks. Does anyone know if that setup requires modifications to anything or is a direct bolt up? 1 answer
        I bought a low mileage used 2003 cobra with this x-pipe system installed and a Bassani exhaust system. The right cat heat shield tack welds were partially broken causing a low RPM rattle. External appearance looks like the cat scraped a speed. Safety wiring the heat shields reduced the rattle sound but did not eliminate it. Could the internal cat ceramics be broken? 1 answer
        I have a 2003 new used cobra with this system installed. Will this system mate up with JBA shorty headers if I decide to replace the stock headers? 1 answer
        Will this fit with BBK performance headers? 1 answer
        which is better h pipe or xpipe 1 answer
        Has anyone run this catted magnaflow x-pipe with the stock catback ? Interested in how much louder it makes it.Specifically at cruising speeds.M car is an 01 GT convertible which the wife drives 100 miles daily.Loud is not good for wifey. 1 answer
        If i get this x pipe. Will I need to worry about passing emissions inspection For Pennsylvania? 1 answer
        Will this fit with SLP Loudmouth Catback Exhaust? Are they worth buying together? 2 answers

          Customer Reviews (40) Write a Review

          Ratings Summary

          4.9 out of 5 overall rating from 40 customers

          Installation Time: Full Day

          Installation Cost: $100-$250

          • July 14, 2019

            5 2004 Mach 1 - Tails Installation Time: Shop Install Installation Cost: 0-$100

            Great Sound

            I took a gamble and had this part shipped to New Zealand. I had borla stingers installed before hand. This x pipe made the car that much louder and sound so good. Install was easy as, and a direct replacement. Cannot fault. Thank you AM

            Helpful (1)
          • December 26, 2018

            5 2001 Cobra - Chris Installation Time: Afternoon

            Phenomenal gains throughout entire RPM band

            Bought this product used on Ebay. Fit was perfect. Really wakes the car up, especially in the top end. You get three great benefits with this midpipe. -Larger diameter piping -2 hi flow cats compared to 4 restrictive oem cats. -Improved exhaust flow with x pipe design. Did not get a MAJOR change in sound but is still noticeable with a deeper growl. Overall highly recommend!

            Helpful (6)
          • December 16, 2018

            5 2003 Mach 1 - DavidG Installation Time: Afternoon

            Factory fit

            It fix perfect and you do not need the extensions of the o2 sensors. Also get an gasket for the passenger downpipe. The gasket that is supplied is of not good quality.

            Helpful (4)
          • December 09, 2018

            5 2003 Cobra - JamesH Installation Time: Less than 1 Hour

            Loud and proud

            Awesome x-pipe! Exactly what I was looking for to go with my Borla Stingers. Raspy growl that’s loud at WOT and quiet in 6th gear.

            Helpful (4)
          • December 09, 2018

            5 2003 GT - SeanO Installation Time: Afternoon

            Sounds great

            Switched from a bbk x pipe. This is much better. Flows way hetter snd sounds way better. You definitely get what you pay for.

            Helpful (3)
          • July 28, 2018

            5 2003 GT - DavidS Installation Time: Afternoon

            AWESOME SOUND!

            I paired this with a Borla Atak Cat Back and I can't be more ecstatic of the sound! Head turner! With this setup I did NOT need O2 sensor extensions on a 2003 GT Convertible. Also buy the Ford gasket for the right side. The one that comes with the kit is junk, but unlike Borla at least the included new bolts.

            Helpful (4)
          • July 11, 2018

            5 2002 GT - NicholasS Installation Time: Afternoon

            Nice product

            This x pipe fit perfectly, hardest part was in plugging front O2 sensors. Also make sure you spray manifold flange bolts with penetrate oil, that will help a lot. I also did a magnaflow cat- back too. Sounds great!

            Helpful (6)
          • February 02, 2018

            5 2001 GT - KevinE Installation Time: Shop Install


            Sounds great, was getting transmission put in so I thought a new exhaust would be good. Paired this up with loud mouth II cat back and it’s sounds beast.

            Helpful (6)
          • September 30, 2017

            5 2003 Cobra - MikeS Installation Time: Shop Install Installation Cost: $100-$250

            03 cobra

            I had stock manifolds and h pipe with Flowmaster catback. I added the Magnaflow X pipe and it really woke up the Flowmasters. Still great for a daily driver. Not too loud but a nice deep growl. Gives me a little more clearance underneath as well.

            Helpful (6)
          • August 08, 2017

            5 2002 Other - ClintonS Installation Time: Afternoon

            An upgrade to my upgrade

            Much better than my BBK x-pipe which the cats failed early on me (only have 16,000mi on the car). The Magnaflow x-pipe sounds better and I have better torque throughout especially on the upper end. The Magnaflow bolted right up to the stock manifold and my Magnaflow cat-back system. O2 sensors swapped right out without the need for any extender adapters. Swapped pipe in my driveway after work one day using Jack-stands on the front end only. It took almost 3hrs to do the whole swap. Recommend a strong impact wrench to break the old nuts/bolts free. Also recommend have a friend give you a hand maneuvering the new pipe in place.

            Helpful (7)
          • April 27, 2017

            5 2003 Cobra - Zach Installation Time: Less than 1 Hour

            Amazing sound!!

            Passenger side exhaust manifold gasket that came with kit only had one shoulder on it.. installed it and it had terrible exhaust leak from passenger side. Removed x-pipe and re-installed factory Ford manifold gasket that has two shoulders to seal and it worked perfectly.. im a senior master ford technician so I do this stuff for a living.. just a disclaimer if your gasket only has one shoulder on it.. don't use it.. sounds absolutely amazing and my cobra is lowered on HandR race springs and it tucks up nicely.. can feel the car pulling a little harder on the top end side of the RPM range.. the sound is a big head turner paired with my Borla ataks.. Thanks AM!

            Helpful (10)
          • December 12, 2016

            5 2003 Cobra - Tom Installation Time: Less than 1 Hour

            Magnaflow tru catted X

            If your debating getting an aftermarket mid pipe this is the one. The quality of the x pipe is there. Made in America, great welds. Performance is up I put this on my 03 cobra and it really woke up the car gave it a much defining tone. This combined with the borla stingers is one of the best sounding exhaust set ups. Can't beat the high flow cats! No smell! More Power!

            Helpful (7)
          • October 11, 2016

            5 2001 GT - Stroker Installation Time: Less than 1 Hour

            Review with stock cat back

            I installed this while leaving the mufflers/tail pipes stock.Not much louder on startup,idle,and steady cruise.You can tell it when you floor it,especially above 4000 rpm.It changes the tone even with stock mufflers.Doesn't compliment the stock muffler sound IMO but I am looking for "quiet" power as my wife wants it that way.She probably won't even notice it and I didn't tell her I installed it. I plan to add either the Dynomax super turbo or the Summit brand polished stainless (straight through perforated tube) mufflers for minimal loudness.I have used them both before with minimal drone/obnoxious noise.

            Helpful (7)
          • July 05, 2016

            5 2000 GT - Grizzo Installation Time: Shop Install Installation Cost: $100-$250

            Love it

            Paired this with the Bassani Cat-Back Exhaust and I absolutely love the sound. My car has been almost completely stock since I bought it in 2001 and the exhaust is one of the Mods I've wanted to make for years. Well, the wait is over. Brought the X-Pipe and Cat-Back to the local exhaust shop, took him a couple hours and I got a new car in return. Absolute joy to drive now, in fact, I find myself just hopping in and going for a drive all the time now. The one thing I have noticed is a little sputtering when I let off the gas but I'm assuming that is the Catalytic converters. Not a big deal. Also, a little pricey but worth it.

            Helpful (6)
          • May 10, 2016

            5 2003 Cobra - WayneS Installation Time: Less than 1 Hour

            2003 SVT

            Prompt delivery and a perfect `fit. Wicked low tones and a real rip connected to my Borla cat backs.

            Helpful (5)
          • April 19, 2016

            5 2001 GT - ThatRedStang Installation Time: Afternoon

            Great Product

            I recently bought this product and WOW did it make a difference. More horsepower and a more aggressive note tone. Fits perfect! I would highly recommend this product to those looking to upgrade from there stock pipes.

            Helpful (8)
          • March 29, 2016

            5 2003 GT - Kidd88 Installation Time: Afternoon

            Great Sound and noticeable increase in power.

            I purchased this for my '03 GT. Whoever owned the car prior to myself, removed the cats from my old pipes. Upon installation (done by a local Ford shop), the car sounded just as mean as it did prior to, but a bit cleaner note. As stated in prior reviews, upper RPM power increase is immediately noticeable. My 'stang pulls harder and seems to run so much smoother with this installation. Yet another great American Muscle order!

            Helpful (8)
          • January 23, 2016

            5 2004 GT - Michael284 Installation Time: Shop Install Installation Cost: $100-$250

            They Hear Me Now

            Loving the deep tone. This X-pipe has been installed for about a week and does she sound great. My exhaust set up consist of stock headers, magnaflow catted X-pipe (this product), and chambered magnaflow catbacks. Great deep note at idle and good rumble while at cruising speeds. Haven't been able to go WOT due to me in the stages of breaking in a new Mcloed clutch. Few hundred more miles to break-in and we will see what she can really do. You will love this product, no buyers remorse. Be sure to purchase the O2 sensor extension cables, had to do some modifications to my wiring sense I didn't purchase them. Considering upping my fuel injectors to 24 lb/hr by Ford Racing. After this install I get the feeling my pony is starving for fuel, seems to lag when approaching hills. All mods consist of KandN CAI, 70mm TB, Intake Plenum, SR Coils, and Bama Tune. Thanks American Muscle.

            Helpful (6)
          • November 28, 2014

            3 2003 GT - GottaLoveGTs Installation Time: Shop Install Installation Cost: $100-$250

            Magnaflow catted x-pipe

            I had my shop install this x-pipe, and they ran into multiple problems with it. They had to modify the pipe and extend the passenger side of the x-pipe about 1.5-2'' in order for it to reach the manifold flange. Then on the same side, only where the x meets the catback they had to extend it another inch in order for that side to reach. Not only was it a pain for them to get the existing stock h-pipe off, but now I've got a leak and will have to take it back for more work. I do not recommend this product, and Magnaflow needs to check their measurements.

            Helpful (5)
          • November 14, 2013

            5 2001 GT - Destaf48 Installation Time: Shop Install Installation Cost: 0-$100

            Off Road Only

            Pros: This exhaust made a drastic change in the exhaust note of my 01 GT. It added a much deeper and more aggressive tone that you cant help but show off at red lights. The performance is definitely noticeable with an increase in throttle response. Cons: I wanted to put down the extra money to have a catted pipe, because i wanted to keep my exhaust system street legal. When i received the x-pipe it states on the cats "off-road only". I was a little disappointed, but it was worth the investment. Still passed inspection though

            Helpful (7)

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