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Bassani Catted X-Pipe (99-04 4.6L w/ Manual Transmission, Excluding 03-04 Cobra)

AmericanMuscle no longer carries the Bassani Catted X-Pipe (99-04 4.6L w/ Manual Transmission, Excluding 03-04 Cobra). Please check out 1999-2004 Mustang Stock Length X-Pipes for an updated selection.

Features & Details

  • Maximizes Exhaust Flow
  • Improves Horsepower
  • Five-Piece "Modular" Design
  • Mandrel-Bent Stainless Steel Tubing
  • High-Flow Catalytic Converters
  • Lifetime Warranty
  • Fits Manual Transmissions Only
  • Fits 1999-2004 GT, Bullitt, Mach 1 and 1999-2001 Cobra Mustangs
Improved Horsepower. The Bassani Catted X-Pipe uses free-flowing mandrel-bent tubing and high-flow catalytic converters with their unique Power “X" Crossover pipe design that scavenges exhaust gasses to provide a significant horsepower increase over the stock restrictive factory catted pipe.

Modular Design. Bassani uses an exclusive five-piece "modular" design that comes with catalytic converters and off road delete tubes making it possible to switch between the catalytic converters and the off road delete tubes on race vehicles.

Quality Construction. This Catted X-pipe from Bassani is constructed entirely from mandrel-bent stainless steel for a durable long life. The catalytic converters use Metallic Substrate for excellent performance and use all the factory emissions connections.

Lifetime Warranty. The Bassani Catted X-pipe is precision-engineered from resilient stainless steel for long lasting durability and is backed by Bassani's Lifetime Warranty.

Application. This Bassani Catted X-pipe is specifically designed to fit 1999-2004 GT, 2001 Bullitt, 2003-2004 Mach 1 and 1999-2001 SVT Cobra Mustangs with a manual transmission only. Not compatible with automatic transmissions or 2003-2004 Cobras.

Technical Note. The 2004 manual GT mustang requires the use of O2 extenders, see options above.

Fitment: 1999 2000 2001 2002 2003 2004 Details

MPN# 46993

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

What's in the Box
  • (1) X-pipe
  • (1) Driver side inlet
  • (1) Passenger side inlet
  • (2) High flow catalytic converters
  • (2) Catalytic converter delete pipes
  • (4) Clamps
Installation Info
Tech Specs
Mid Pipe Specifications
Style Mid Pipe: Standard length "X" Type Headers Required: Shorty
Piping Material: Stainless Steel Piping Size: 2.5"
Catalytic Converter: "Yes" Fitment: 99-04 GT, 01 Bullitt, 03-04 Mach 1 and 99-01 Cobra w/Manual Transmission
Will it fit my Mustang?

    Customer Photos (13) Submit Your Photo

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      Questions & Answers (20)

      5 Top Rated Questions

      Mach 1 Fitment I've been looking for a replacement mid-pipe for my Mach and this one seems like it would be a good choice, however, it does not say explicitly that it fits the 03-04 Mach 1 Mustangs, even though many of the alternate pipe systems are interchangeable between many of the different submodels. So will this piping fit my 2003 Mach 1 (manual transmission) or no?

      • Yes it will, just put one on my 04 Mach tonight. Very strait forward, also 02 sensor extensions are a must.

      Helpful (5) Show 1 more answer

      I have an 03 Mach 1... bone stock. Will this be okay with my factory cat back exhaust until I can afford to grab something new? Do I need to buy any gaskets?

      • The Bassani Catted X-pipe will work just fine with your factory exhaust. This kit is designed to be a bolt on application and give your car, even with the stock exhaust, a nice deep tone. The only fitment requirement with this exhaust is that your car is equipped with the manual transmission.

      Helpful (1)

      Can this be run with a Factory tune? Or is a tune required?

      • This x-pipe will not require a tune. However, we do highly recommend one to get the best possible performance from the x-pipe.

      Helpful (0)

      Does this fit the tubular short headers from Ford?

      • This would work with the shorty headers from Ford yes.

      Helpful (0)

      Do you sell the Catalytic Converters? I have this setup and the Cats have gone bad. If not where can I get them?

      • At this time we do not offer the Bassani Cats individually.

      Helpful (0)
      Post Your Question
      10 More Questions
      Will this pass Emissions testing in Utah as the Original Replacement part has four Catalytic Conveters? 1 answer
      Hello will this xpipe work with the bassani MID-length headers? 1 answer
      Will this mid-pipe work with bassani's mid-length headers? I check their website and I'm not getting much info on this particular midpipe... 1 answer
      Will these bolt up to the BBK 1 5/8 " long tubes headers 1533? None ceramic. 1 answer
      Are these Bassani high flow cats CARB certified for California? Want to be able to pass smog. 1 answer
      Hi, will this Bassani X-pipe bolt up to a Borla Stinger cat-back exhaust? I've heard yes and no so I'm confused whether or not it'll fit properly. 1 answer
      if its possible, how does one obtain the "off road delete tubes" only? i misplaced mine. thank you 1 answer
      Will this pass California smog requirements 1 answer
      Will this match up with a Borla ATAK Cat Back Exhaust for the 04 GT? 1 answer
      Will this x-pipe match up to a slp loudmouth catback exhaust or will I have issues. 1 answer

        Customer Reviews (34) Write a Review

        Overall Rating 4.9

        out of 5 stars

        Installation Time:Full Day

        Installation Cost:$100-$250

        • Loudness / Volume 4.666667 4.7
        • Exhaust Note 4.958333 5.0
        • Fit & Finish 4.958333 5.0
        • Bang For Your Buck 4.75 4.8



        • 5/5

          Installation Time: Afternoon

          November 26, 2018

          Love It!

          Direct bolt on for my 2003 Mach 1 with BBK headers and SLP catback.

          TexasSnake

          Year: 2003 Submodel: Mach 1

          Helpful (1)

        • 5/5

          Installation Time: Afternoon

          October 19, 2018

          Perfect replacement!

          Beautifully made, perfect welds, bolted directly to my stock manifolds and, with the cats, absolutely no CEL codes tripped. Totally happy with the product, installation and, most of all, the great sound! Mated with a Borla S cat-back exhaust system... great combination!

          DavidW

          Year: 2003 Submodel: GT

          Helpful (2)

        • 5/5

          Installation Time: Less than 1 Hour

          October 08, 2018

          The best

          Paired with Borla atak this x pipe is the best. You will be heard from everyone people will get out of your way on the road. This pipe will make your mustang sound like it’s got 100 more hp than it really does

          AnthonyD

          Year: 2004 Submodel: GT

          Helpful (1)

        • 5/5

          Installation Time: Shop Install

          Installation Cost: $100-$250

          June 03, 2018

          Bassani X Pipe

          So I had a stock h pipe and an old MAC cat(bone stock GT mind you) and holy heck did this wake up my exhaust. Yeah I know it says 500$ but it’s so worth it!!! I did my research for months watching videos, clips on all the big brand exhausts, and good sounding exhausts. I ended up settling on this, and oh boy. Got it back from the shop and man did it roar to life even with the high flow cats! Sounds even better when you get to the 2-3 rpm range. Another great buy from AM!

          02Stangbud

          Year: 2002 Submodel: GT

          Helpful (3)

        • 5/5

          Installation Time: Afternoon

          April 17, 2018

          Goes great with Borla stinger

          The sound from this x-pipe teamed with Borla stinger exhaust is a very sweet tone ( will put a smile on your face ) had these professionally installed, the install was easy and spot on. Had no issues

          JeffW

          Year: 2000 Submodel: GT

          Helpful (5)

        • 5/5

          Installation Time: Afternoon

          March 20, 2018

          Bassani catted x

          Couldn’t be more happier. Sounds great paired with slp loudmouth cat back.

          DouglasG

          Year: 2001 Submodel: Cobra

          Helpful (3)

        • 5/5

          Installation Time: Afternoon

          January 11, 2018

          Bassani X_pipe

          I love the different sound X-pipe makes than H-pipe on my 2001 Cobra. It is a upgrade for good it worth the money . Thanks AM

          MichaelC

          Year: 2001 Submodel: Cobra

          Helpful (4)

        • 5/5

          Installation Time: Less than 1 Hour

          November 23, 2017

          Bassani X-pipe

          Had my mechanic install this part. Took about 45min. Great sound. I love the rumble. Goes well with my SLP Loudmouth exhaust. The cats are higher off the ground than my old "high flow" cats. More ground clearance now. Not bottoming out those pesty speed bumps. That alone is worth the price!!!

          LaurenceM

          Year: 2000 Submodel: GT

          Helpful (5)

        • 5/5

          Installation Time: Afternoon

          September 27, 2017

          Bassani For the Win!

          This is quite possibly the best sounding X-pipe that I have heard. It installed with no issues and pretty quickly. The hardest portion was removing the factory H-pipe. If you're on the fence about this go ahead and take the dive. You won't be disappointed.

          TGIfridley

          Year: 2002 Submodel: GT

          Helpful (4)

        • 5/5

          Installation Time: Afternoon

          July 13, 2017

          Bassani catted x pipe

          Had this x pipe on for about a year now. Still cel or any problems all with it. Did notice it was an instint drone maker inside the car though. Have this x pipe with the bassani catback and it still sounds great. Sounds good and doesnt sound obnoxious. Although I would like it to be alittle bit louder it still sounds great. Was very easy to install on jackstands in a driveway. Everything lined up good and is tucked away tight even with lowering springs.

          J

          Year: 2003 Submodel: GT

          Helpful (3)

        • 5/5

          Installation Time: Shop Install

          February 01, 2017

          Bought this 17 years ago. Still good as new.

          June of 2000 I bought my first and only brand new car: My Ford Mustang GT 'vert. 3 days later ordered this X pipe and the cat-back. When they say they're engineered to last, they are not kidding. 17 years and no rust anywhere I or my mechanic can see. And the sound of the system is just awesome. No raspy empty noise, no drone at highway, etc. A nice deep bass rumble and (at least in my ride) a nice burble-burble-burble on decel in gear. It does not need to all-out thunder roar all the time - it gets it's point across at the stoplight just fine with that bass rumble. I had it all installed together, I expect most of the sound improvement is the cat-back but the X, I'm told, changes the sound somewhat also as it's flowing differently, etc. Last word? BUY WITH CONFIDENCE! -JD

          Fensty

          Year: 2000 Submodel: GT

          Helpful (6)

        • 5/5

          October 23, 2016

          X-pipe

          I got this for my fiance for his birthday and he absolutely loved it.

          Ashes

          Year: 2003 Submodel: Mach 1

          Helpful (6)

        • 5/5

          Installation Time: Afternoon

          September 21, 2016

          lively

          Came quick, a few days, everything needed except a new left manifold seal ($7 from auto zone). Took some time to get my old stock cats off , so soak the nuts on the manifold well with a thread buster/lube. Take negative off battery so not to make sparks with the starter. New exhaust went in easy except for the far left nut(go through the wheel well, take off the left front wheel); make sure to recheck everything tight when finished. Mach came alive with more torque, pull, life. Best catted x-pipe I could find for the price, great quality. But for me I still prefer the deep thunder of the H-pipe, I needed to wake up my Mach and needed the 20 hp that was advertised, and got it. Exhaust tone is loud, poppy, aggressive and a joy to drive. Total install time: 3-4 hours with no help/novice car mechanic.

          mark64

          Year: 2003 Submodel: Mach 1

          Helpful (5)

        • 5/5

          Installation Time: Afternoon

          September 13, 2016

          Perfect Fit

          This x pipe is really nice and fits perfectly. It's a little expensive but you pay for what you get. Also sounds really good with or without the cats.

          Fordguy

          Year: 1999 Submodel: GT

          Helpful (5)

        • 5/5

          August 03, 2016

          Fits 2003 Cobra as is

          Packing was robust and can withstand UPS. Fit and finish are above expectation and a breeze to install. No leaks at header or at clamps. For 2003 Cobra, this part fit perfect without O2 extensions or concern. Ground clearance is the same if not better than stock. With cats, exhaust at idle and low rpm is on par with stock if you use the cats. Great product and great site to buy from

          ABinSDCA

          Year: 2003 Submodel: Cobra

          Helpful (3)

        • 5/5

          Installation Time: Shop Install

          Installation Cost: 0-$100

          July 02, 2016

          Cutthroat sound, visceral experience

          I ordered this x-pipe about two years ago and mated it with a set of bola stingers. My mustang is just your typical bolt on car, but it sure doesn't sound like it. This Bassani x-pipe gave my mustang the ability to scream like a banshee throughout the entire RPM band, and the option to switch between cats and off road straight pipes is an added bonus. I personally prefer the viciousness of the off road straight pipes (which is what I'm currently running), but the cats do give it a nice deep, more traditional muscle car sound. Besides WOT pulls (to the speed limit) I love letting my car get up to about 3k on the tach in third gear and letting off the gas, the exhaust crackles, spits, and burbles. Which if you haven't experienced it, it almost feels sinful to hear something that visceral. As far as performance goes, the x-pipe definitely flows better than the stock h-pipe, which adds a couple ponies to the wheels. While you won''t really notice the slight, slight increase in horsepower you will notice the vastly improved throttle response. If combined with a good catback exhaust and maybe a tune, the demeanor of your mustang will change entirely. The unfathomable sound and improved throttle response will ensure a couple more smiles per gallon.

          Kris

          Year: 2004 Submodel: GT

          Helpful (3)

        • 5/5

          Installation Time: Shop Install

          Installation Cost: $500-$1000

          April 06, 2016

          Very Impressed

          Bought this based off of word of mouth and I'm very impressed. The hardest part was unbolting the bolts from the headers. PB blaster and a torch was used but had no effect due to age? Ultimately I had to go to a machine shop to let them take care of it. Once they did what they did the rest of the installation was a breeze. Paired with my S-type Borla cat backs, and I really got a great sounding V8.

          CFuentes

          Year: 2004 Submodel: GT

          Helpful (5)

        • 5/5

          Installation Time: Shop Install

          Installation Cost: $250-$500

          November 09, 2014

          Great Sounding Mid Pipe

          This install was done on a 2003 GT with Kenne Bell Blower making 8 lbs of boost. This is the perfect sounding mid pipe. It has a deep, low, and well defined tone. It is not much louder than stock at idle, but at tip in, cruise, and full throttle you will definitely hear the difference. As far as power gains go; its hard to be certain, because my car was having some additional issues when I brought the car in to have the pipe installed, and the car tuned. At the end of the day I ended up picking up almost 60 rwhp from this mod and fixing the other issues the car was having. In total the car put down 400 rwhp and 400 rwtq (it had previously put down 340 rwhp, but was having fuel system issues a that time) Out on the street the car doesn't really feel that much faster, but that is probably due to a couple things 1) Power delivery seems a lot smoother, which usually makes it feel less strong because it isn't as violent. 2) My other Stang makes 620 rwhp, so driving a car with 200 less hp doesn't feel that impressive.

          Argaanos

          Year: 2003 Submodel: GT

          Helpful (6)

        • 5/5

          Installation Time: Shop Install

          August 01, 2014

          Excellent X-pipe Option

          Recently installed this X-pipe to go along with my Borla S-type catback, and wow! what a difference. Can feel a good torque increase as well as a louder, more aggressive sounding tone. Love this!

          JMOND

          Year: 2003 Submodel: GT Malvern, PA 19355, USA

          Helpful (3)

        • 5/5

          Installation Time: Shop Install

          Installation Cost: $250-$500

          June 16, 2014

          Bassani Catted Mid Pipe

          Superb fit and finish. Tucks up under the car nicely. Excellent product. Coupled with the Borla Stinger Cat backs car sounds awesome! Can't wait to add the matching Bassani long tube headers!

          Cammerno1

          Year: 2004 Submodel: GT

          Helpful (3)

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