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Magnaflow Competition Series Dual Dump Cat-Back Exhaust (86-04 V8)

Item 48062
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      Review & Installation Video

      Hey, guys. I'm Justin with, here with a detailed overview and install of MagnaFlow's dual dump cat-back exhaust system, available for your 1986 to 2004 V8 Mustang. So the MagnaFlow dual dump cat-back is a very unique system that should appeal to both the Fox and SN95 owners alike, who would like to eliminate the appearance of any exhaust tips on his or her V8 Mustang, while getting a pretty healthy increase in tone at the same time. Prospective buyers can look forward to a great build quality and materials here at the MagnaFlow system. Due to the rather simplistic design of the cat-back itself, you can actually look forward to shedding a few pounds from your ride as well. Now, the MagnaFlow will be one of only a couple of dumping cat-back options currently in the category for the Fox Body and SN95 crowd, and will also be your premium option at the time of this video, leaning in the mid to high $400 price range. Install, well, barring any rusting bolts, you're looking at a very easy job here, gang. One out of three wrenches on the difficulty meter from me, with some more detail later on. So yes. This is a pretty unique system from MagnaFlow and in regards to your other cat-back options in the category, and the fact that it does feature that dumping configuration. What does that mean? Well, simply put, guys, it's going to dump the exhaust underneath the car right before that rear axle, eliminating the look of any rear tailpipes in the process, which some owners might think is a cleaner look overall. But like anything in the car world, this is all personal preference. But since this is an exhaust after all, there's obviously more at play here than just appearance. So let's break down the sound you can expect when bolting up the MagnaFlow to your ride. Honestly, guys, because this thing will fit a few different engines, expect the sound to change from engine to engine. Now, we did install this on our '98 GT with the 4.6, and the sound was pretty solid overall. A nice deep tone, kind of what we've come to expect from MagnaFlow, and a nice little bump in volume as well. Not as loud as you might think, though, guys, with this system, and keep in mind the fact that the headers are still stocked and we still have the cats in place on the car. Replace these, of course, with an aftermarket long tube or shorty header, different mid-pipe, and this system will really come to life. So what does that all mean on our tried and true Wake the Neighbors scale? Well, on our two-valve 4.6, I had the MagnaFlow dumping cat-back coming in at a healthy or strong three out of five on my one to five or One to Wake the Neighbors scale. Again, replace those factory manifolds or mid-pipe with an aftermarket long tube and aftermarket mid-pipe, and those numbers of course will skyrocket, as some of our customers have pointed out in the Review section. Now, something to consider here with this system and the unique design, it is going to dump the exhaust underneath the car. Therefore, prospective buyers should look forward to a slight increase in sound inside the car while cruising. If this is something that's going to bug you, you might want to consider going with a conventional exhaust system instead. Well, let's talk a little bit more about the quality and construction here, what little there is, of course. In true MagnaFlow fashion, it's all very nice, really nicely made, great welds, 409-grade stainless steel, built in the USA. Just a solid system, overall. Shaping the sound with the MagnaFlow here, they have included a couple of their straight-through by design, bullet-style mufflers, a perforated tube design here, and everything is going to exit out the polished dumps right underneath the car. They look really sharp, which is a shame because, again, you're never really going to see these guys. MagnaFlow does include all the clamps and all the other necessary hardware needed to get this system installed. Switching gears, let's talk about the install a little bit more, and I know I gave this one a one out of three wrenches at the very top of this video. I'm still sticking to that. Yes. You will need to cut a little bit with this system, but it really isn't that bad. Right? You get to break out some fun tools, get your Sawzall out, a fresh metal blade, make some cuts, have some fun. It's really not a hard install whatsoever. So again, one out of three wrenches, a strong one at that, and maybe an hour or two from start to finish to get this system in place. Now, your first step is to cut the tailpipes directly behind the factory mufflers here in order to remove the system, and then drop the extension pipes off the factory H-pipe as well, being careful not to damage those rubber isolators, as they will be reused with the MagnaFlow system. Once you get all of the old factory stuff out of the way, you can get to work installing the brand-new MagnaFlow stuff, starting from front to back, right off of that factory H-pipe. Install your extension pipes first, leading into the bullet mufflers here, and then of course the turndowns. We always like to recommend saving your final tighten up until the entire system is kind of hung in place. That way, you can check for clearance issues, all that good stuff, before really hammering down with your torque wrench or your impact gun. Check for rattles, check for shakes, check for clearance, and your installation is complete. So wrapping things up, guys, if you're in the market for a dual dumping-style cat-back for your Fox Body or SN95, the MagnaFlow is going to deliver a deep tone, quality construction, offer the high $400 price point, and you can grab yours right here at

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Aggressive Muscle Car Sound
      • Dual Dump Exhaust
      • 2.5" Mandrel-Bent Tubing
      • Stainless Steel Construction
      • Magnaflow Straight-Through Style Mufflers Included
      • Fits 1986-2004 V8 Mustangs


      Aggressive Muscle Car Sound. Add a throaty muscle car exhaust note to your V8 Mustang and improve it's exhaust flow at the same time with a Magnaflow Dual Dump Cat-Back Exhaust system from AmericanMuscle.

      Dual Dump Exit. This Magnaflow Cat-Back system features a Dual Dump design that exits the exhaust in front of the rear wheels for a stealthy appearance.

      Quality Stainless Steel Construction. Constructed from high quality 2.5" mandrel bent Stainless Steel tubing this Dual Dump Cat-Back Exhaust system from Magnaflow features two aggressive straight-through mufflers for a classic muscle car sound.

      Application. This Magnaflow Dual Dump Exhaust Cat-Back System is designed to simply bolt up to the existing stock mid pipe on of any 1986 to 2004 V8 Mustang, including the LX 5.0, GT, Bullitt, Mach 1 and SVT Cobra models.

      Note. Coupon codes cannot be applied to this product.

      Fitment: 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 Details

      MPN# 17118

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (10)

      Write a Review

      Ratings Summary

      4.5 out of 5 overall rating from 10 customers

      Installation Time: Afternoon

      Installation Cost: $100-$250

      • November 23, 2018

        5 2000 V6 - BrandenD


        Installed on a 2000 v6. Very, very loud. People constantly want to race. Low rpm they are not to bad but about 3000 rpm they change note and get super loud. I've had people tell me they can hear my car idle blocks away. I am running an x pipe no cats with shorty headers. I can feel the vibration of the exhaust in my house when I warm it up. Also point the tips outwards or the sound will reflect off the ground back into the car

        Helpful (4)
      • August 03, 2018

        5 2001 GT - KevinH Installation Time: Afternoon

        Great Product

        I Love everything about this kit. sounds great, looks great, and no hassle install. Got an 01 GT with factory exhaust up to this kit, and there is such a difference. Now to deal with the rear bumper tail pipe humps...

        Helpful (4)
      • July 30, 2017

        5 2002 GT - ThomasS Installation Time: Shop Install Installation Cost: $100-$250

        Dual dump exhaust

        While a shop installed for me, if you have the time, place, and tools, this would be a fairly easy install. They are Magnaflow quality! Even though they won't be seen, the fit and finish was outstanding! The exhaust loudness is nice and I saved a lot of weight not having to run pipes over the rear end and out the back. Neat little package. I would highly recommend them!

        Helpful (6)
      • July 10, 2017

        1 1996 GT - green96 Installation Time: Less than 1 Hour

        nice !

        nice! to bad they wont pass a lawful Pa. inspection. Not ONE word in the April add about their fore knowledge of the above listed FACT. Wont take it back either because it was installed. Really ? how do you know it wont pass untill the garage sees it ON THE CAR ? Thanks for the Heads Up that it may not pass. just because its obvious to you dose not mean anyone else would consider it

        Helpful (10)
      • February 17, 2017

        5 2003 GT - JohnMurphy Installation Time: Less than 1 Hour

        Magnaflow Cat-Back

        Very nice looking high quality. Wish I would have purchased sooner.

        Helpful (7)
      • August 09, 2016

        5 2004 V6 - Franky

        MagnaFlow Dumpers

        I bought these because of the good reviews on this exhaust. I wanted to do something different to my 04 v6 and this was it. I installed these with the shorty headers, dual exhaust adapter h-pipe and these dumpers to finish up. These are surprisingly pretty sick. Sounds like a v8 with the muscle car rumble/ bass sound. Felt the difference in increased hp too. These MagnaFlows sound as good as they look. I like how you cant see the exhaust beacause it surprises everyone once you start it up.

        Helpful (10)
      • June 15, 2016

        5 1990 GT - ponyfan Installation Time: Afternoon

        great product

        I bought this product for my mustang 5.0, very well structured, great material. I bought this based off of other great reviews, cant wait to install

        Helpful (7)
      • August 27, 2015

        4 2000 GT - Pdiddy Installation Time: Shop Install Installation Cost: $100-$250

        Magnaflow all the way

        These sound awesome with my JBA h pipe. Super good rich sound too. It's a little quiet at idle but once your on the gas its just sweet. If u want a good quality catback that really rumbles, GET THESE!

        Helpful (6)
      • January 16, 2015

        5 1996 GT - JawgaBoy Installation Time: Afternoon

        Magnaflow dual axle dumps

        This exhaust sounds amazing!! Especially after they break in, when you let off the gas and the rmps come down they pop and sure to turn heads! They give the car a clean slick look in the back whit them not coming all the way out and stoping at the axle. Loud inside the car and out, even with stock H pipe. Easy to install.

        Helpful (8)
      • April 01, 2013

        5 2002 GT - pitcher33 Installation Time: Less than 1 Hour


        These things sound MEAN. I installed them along with a bbk offroad x pipe and already had long tubes on my car. I was expecting a raspier sound because of the smaller resonators and no cats but these have more bass than competition stereo systems. The best part is that they snarl when shifting. I would definitely buy these again.

        Helpful (17)

      Questions & Answers (10 answers)

      5 Top Rated Questions

      Have you ever seen these fit up to a BBK X pipe?

      • The Magnaflow Cat-Back Dual Dump Exhaust will fit up to the BBK X pipe.

      Helpful (0)

      Would this set up work for my 04 v6 with a off road x pipe

      • Yes, this exhaust will work with your V6 Mustang with an off-roadX-pipe. 

      Helpful (0)

      Would this be legal in california?

      • This cat-back does not affect any emissions devices on your Mustang, so it would be CARB legal in California.

      Helpful (0)

      Will this work on a corbra irs?

      • Yes, the Magnaflow Cat-Back Dual Dump Exhaust will be compatible with the Cobras with IRS.

      Helpful (0)

      Will this work on an 03 cobra with a IRS?

      • Yes, this Magnaflow Cat-Back Dual Dump Exhaust will fit your 2003 Cobra.

      Helpful (0)
      Post Your Question
      5 More Questions
      Does this exhaust have a lot of drone at highway speeds?? 1 answer
      would this catback setup with kooks long tubes and kooks x pipe ? 1 answer
      I'm looking for a cat back , I'm looking at these magnaflow dumps and the slp loudmouth. I was wondering if anyone knew the difference in exhaust note, how these two compair . From my understanding the dumps have a deep bass tone , are they slp more raspy ? Any advice would be helpful 1 answer
      i want to know if the magnaflow catback dual dump exhaust will go with a BBK long tube header and a shorty X-pipe? 1 answer
      what muffler comes with this kit? looking at this kit and it appears to use the magnapak muffler is this correct? 1 answer

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (2) Flow pipes
      • (2) Mufflers
      • (2) Turn down pipes
      • (4) Clamps

      Tech Specs

      Cat-Back Exhaust Specifications
      Piping Material: Stainless Steel Tip Material : N/A
      Piping Size: 2.5" Tip Size: N/A
      Muffler Type: Straight-through Fitment: 1986-2004 V8 Mustangs

      Will It Fit My Mustang

      • Bullitt - 01
      • Cobra - 93, 94, 95, 96, 97, 98, 99, 00, 01, 03, 04
      • GT - 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04
      • LX - 87, 88, 89, 90, 91, 92, 93
      • Mach 1 - 03, 04
      • Other - 86

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