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Magnaflow Competition Catback Exhaust (99-04 GT, Mach 1, Bullitt)

88 Reviews
Our Price

$661.69

  • Item #48013
  • MPN# 15673

  • Market Price $727.99
  • You Save 9% ($66.30)
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Product Videos Customer Photos
Features
  • Aggressive Muscle Car Sound
  • Competition Series Mufflers
  • 2.5" Mandrel-Bent Stainless Tubing
  • 3.5" Polished Stainless Tips
  • Fits 1999-2004 GT, Bullitt and Mach 1 Mustangs
Description
Free Flowing Exhaust. Magnaflow delivers the ultimate free flowing exhaust for the 1999-2004 GT, Bullitt and Mach 1 Mustangs with the Competition Catback Exhaust System. By eliminating power robbing restrictions. this catback will put more horsepower and torque where it belongs - at the rear wheels.

Aggressive Muscle Car Sound. The Magnaflow Competition Catback Exhaust System, with its pair of straight-through bullet-style competition mufflers, will give your Mustang the loud aggressive exhaust note of the muscle cars of yesteryear.

Quality Construction. Each piece is made from mandrel bent 2.5" stainless steel tubing for long life and a perfect fit. The system ends with brightly polished 3.5" stainless tips, that exit in the stock location for impressive good looks. The OEM-style barbed hangers are designed to ensure easy installation and precise fit.

Application. Made to be a direct bolt on, this Magnaflow Competition Catback Exhaust System will bolt straight up to the factory mid-pipe without any extra modifications required on 1999-2004 GT, 2001 Bullitt and 2003-2004 Mach 1 Mustangs, to give it a deeper, aggressive sound.

Fitment: 1999 2000 2001 2002 2003 2004 Details

Won't fit? Add an exception

What's in the Box
  • (2) Flow Tubes
  • (2) Tail Pipes
  • (2) Competition Mufflers
  • (2) Polished Tips
  • (2) Set Screws w/ Allen Wrench
  • (2) Tip Hangers
  • (6) 1.25" x 2.5" Band Clamps
  • (2) Header Mounting Flanges
Installation Info
Tech Specs
Catback Exhaust Specifications
Piping Material: Stainless Steel Tip Material : Polished Stainless Steel
Piping Size: 2.5" Tip Size: 3.5"
Muffler Type: Straight-through Fitment: 1999-2004 GT, Mach 1, Bullitt
Will it fit my Mustang?
  • Bullitt - 01
  • Mach 1 - 03, 04
  • GT - 99, 00, 01, 02, 03, 04

Most Helpful Reviews

5/5
Screamer

Got my magnapack catback in the mail today and installed it with my buddy in his driveway. I originally just had the magnapack mufflers welded up to stock piping with BBK O/R X and BBK LTs and that was ...

Read More
Helpful (12)

5/5
Installed on '01 Bullitt

I ordered this catback exhaust for my '01 Bullitt on a Sunday, and got it on a Wednesday. AM shipping is great. I chose to install this in my garage starting at 6pm because i was obviously pretty impatient ...

Read More
Helpful (4)

Read All 88 Reviews
Overall Rating 4.9 out of 5 stars

Videos

Hi I’m Justin with AmericanMuscle.com, and I’m taking a closer look at the Magnaflow Magnapack catback exhaust fitting the 99-04 Mustang GT and Mach 1. The Magnapack gets its name from these two Bullitt View Full Transcript

Customer Photos (28) View All Photos

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8 Questions / 7 Answers

Ask a Question

will mac pro chamber work with this i am in the market for an exhaust i am thinking about getting mac long tubes w/ pro chamber and not exactly sure about cat back byt like the sound of the magna pack my question is will all these components work together

rex02gt Year: 2002 Model: GT

  • Yes the prochamber will work with the magnapacks, this is the setup i currently have on my 2000 gt and it sounds amazing

    Best Answer

    stang9700 Year: 2000 Model: GT

    Good Answer (2)

Show 1 more answer Question Resolved

Is it TOO loud? I have a '99 V6 Mustang & I was planning to combine this with some BBK shorty headers. Would it be extremely loud with both or would I be ok with just the Magnaflow exhaust?

DonaldDuck Year: 1999 Model: V6

  • The Magnaflow catback itself is pretty loud. I would say you would be fine with just the catback system. Keep in mind you need to order the right one, since this specific one is for the 8 cylinders. Regardless, at least for the first step, this catback is definitely loud enough.

    Bullit3937 Year: 2001 Model: Bullitt

    Good Answer (0)

Show 1 more answer Question Resolved

Welding? Will I have to weld everything together?

2k2GT Year: 2002 Model: GT

  • NO, this exhaust comes complete with all hardware for installation. Let me know how it sounds.

    Catch22COP Year: 2012 Model: GT Top 10 Contributor

    Good Answer (0)

Show 2 more answers Question Resolved

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Customer Reviews (88) Write a Review

Overall Rating 4.9

out of 5 stars

Installation Time:Afternoon

Installation Cost:0-$100

  • Loudness / Volume 4.615385 4.6
  • Exhaust Note 4.807693 4.8
  • Fit & Finish 4.5 4.5
  • Bang For Your Buck 4.692307 4.7



  • 5/5

    July 14, 2010

    Screamer

    Got my magnapack catback in the mail today and installed it with my buddy in his driveway. I originally just had the magnapack mufflers welded up to stock piping with BBK O/R X and BBK LTs and that was loud but this is incredible. Has that deeper tone now with the 2.5" piping and really makes my car scream now. Installation was kind of frustrating at times but overall it was straight forward. Would definitely recommend this catback over others b/c it gives that real loud mustang sound, without sounding raspy up top.

    Justin

    Helpful (12) (1)

  • 5/5

    Installation Time: Afternoon

    February 28, 2013

    Installed on '01 Bullitt

    I ordered this catback exhaust for my '01 Bullitt on a Sunday, and got it on a Wednesday. AM shipping is great. I chose to install this in my garage starting at 6pm because i was obviously pretty impatient and didnt want to wait till the next day to install it at work (i work at a dealership as a tech and have my own bay). It took me about 2.5 hours using a jack with jackstands and only hand tools. Some parts of install were a pain, mainly the final part where you attach all four parts on each side. But it was all completely worth it when i started it. Sounds amazing!!!!! Very deep and "growly", and reaaalllyy sounds good when you step on it. For anyone on the fence about this, just do it. You won't regret it!

    Bullit3937

    Year: 2001 Model: Bullitt Driving Style: Daily Driver 'Stangs I have owned: 1 Boston, MA, USA

    Helpful (4) (0)

  • 5/5

    Installation Time: Full Day

    February 16, 2012

    AWESOME EXHAUST!

    This exhaust is great! It sounds great, loud but not too loud, and a great deep tone. The tips look great! The stainless steel is great! The install was fairly easy. Keep everything loose until the whole side is in place. Check the set screw on the tips as it tends to come loose at least once after first installed.

    cb60

    Year: 2003 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 3 MI

    Helpful (3) (0)

  • 5/5

    June 09, 2010

    loud,,loud,, VERY loud

    very good system, i had flomaster,bassani, before & know i got the best- magnaflow catback-- WOW....AWESOME SOUND,,,it sounds crazy in all gears with my kooks long tube headers & off road short x pipe...real muscle car..

    jm

    Helpful (5) (2)

  • 5/5

    July 09, 2008

    READ THIS

    If you want your mustang to sound loud without spending $1600 on getting new long tube headers and a X or H pipe, then this is the exhaust to get! The sound is a 9 out of 10 and the feel it gives you is a A+!!! A MUST GET!!!

    Andrew Burke

    Helpful (5) (2)

  • 5/5

    Installation Time: Afternoon

    September 16, 2012

    Perfect Exhaust!!

    I installed this in about 3 and a half hours with my brother. Everything was very simple and fit perfectly. This exhaust is VERY loud when you hit the gas, sounds amazing at around 2000 RPM. While at idle or just cruising you its not annoying loud. The only thing i noticed after install was that the clamps let a very small amount of air out, but i am gonna try and break them in then check again and hopefully that will completely stop. Overall I would recommend this product to anyone it is perfect for what i wanted.

    Drasticunknown

    Year: 2001 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 2 Florida, USA

    Helpful (2) (0)

  • 5/5

    May 18, 2011

    The Sound is by far the Best!!! Pur American Muscle

    I got this system yesterday and installed it today and what I can say is that all the research I did this is by far the best out there for the price. Gives it that American Muscle sound that every V8 should, and all I did was the cat back for now but there will be more to come. Trust me Ive been to every website and call everybody for what the best is for an exhaust system and AmericanMuscle is FASTER, CHEAPER, and WILLING to help you with every question. They are the EXPERTS!!!! ONE VERY HAPPY CUSTOMER FOR LIFE!!!!

    Eric

    Year: 2003 Model: GT Driving Style: Daily Driver

    Helpful (4) (2)

  • 5/5

    February 17, 2010

    3.8 MagnaPack

    WOW! Thats all i can say, i put this on with the V6 adapter kit and i was blown away. It loud but not over the top. It has an amazing tone and sense of purpose.

    Tyler

    Helpful (3) (1)

  • 4/5

    Installation Time: Afternoon

    May 06, 2014

    Not as loud as I thought

    Love the exhaust, looks good sounds good and fit pretty good most of my trouble was trying to undo the rusted bolts on the hpipe and it was a little tricky getting the 2 bent pieces in off a floor jack, I had to stack 2 4x4s then jack it to get the angle needed to slide it in so be ready for that. But my final point is that it's really not all that much louder than the factory I mean it sounds better and might be like 2 or 3 clicks louder but not what I expected. 1 or 2 more clicks would of been been nice but hey at least the neighbors won't complain...

    Spencerbozo

    Year: 2004 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 2 New Hampshire

    Helpful (1) (0)

  • 5/5

    March 23, 2011

    Magnapack FTW.

    I will never buy another exhaust! I love the rich deep sound that this exhaust gives. Extremely loud and aggresive at WOT. At idle and low rpms can be kept quiet. Exactly the vintage sound i was going for on my 2004. Ive had the catback installed since 2006 and love it to death, still looks new after 79k

    CrimsonStang04

    Year: 2004 Model: GT Driving Style: Daily Driver

    Helpful (3) (2)

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