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Pypes Violator Cat-Back Exhaust with Black Tips (98-04 GT; 03-04 Mach 1)

Item 383686
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      Product Information

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


      • Increases of 8 to 13 Horsepower
      • Improved Fuel Economy
      • Aggressive Sound Profile
      • 2.5" 409 Stainless Steel Tubing
      • 3.5" Black Powdercoat Stainless Steel Tips
      • Fits 1998-2004 GT, Bullitt and Mach 1 Mustangs


      Increased Performance. Installing a Pypes Violator Cat-Back System on your 98-04 Mustang will yield instant gains of 8 to 13 HP. This catback features two Violator mufflers, which will not only offer the ultimate in airflow and power gains, but will give your Stang an aggressive rude sound.

      Aggressive Sound. This Pypes Cat-Back features the Violator "Rude Sound" muffler that uses an oversized 3” internal louvered tube with mini sound deflector chambers, resulting in a unique, throaty muscle car sound.

      Quality Materials. This Pypes Violator Cat-Back Exhaust is constructed from free flowing mandrel bent 2.5" 409 stainless steel tubing and features Pypes Violator chambered mufflers for an aggressive throaty sound. The whole system is finished off with a set of 3.5" Black Powdercoat Stainless Steel Tips for a modern, stealthy styling.

      Application. The Pypes Violator Cat-Back Exhaust kit is specifically designed to bolt-on to the existing stock H-Pipe of any 1998-2004 GT, Bullitt or Mach 1 Mustang.

      Fitment: 1998 1999 2000 2001 2002 2003 2004

      MPN# SFM27VB

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (15)

      Write a Review

      Ratings Summary

      4.5 out of 5 overall rating from 15 customers

      Installation Time: Full Day

      Installation Cost: $100-$250

      • August 16, 2019

        5 2000 GT - Mike Installation Time: Shop Install Installation Cost: $250-$500

        Mustang Exhaust

        Good Quality part, sounds and looks great . Went from a flowmaster to this system and I am very happy with the sound look and performance

        Helpful (1)
      • April 28, 2019

        5 2001 GT - BigAl5412 Installation Time: Less than 1 Hour

        The Violator

        Easy install, love the sound! It definitely turns heads, and affordable!

        Helpful (0)
      • January 23, 2019

        2 2001 GT - RussellR Installation Time: Shop Install Installation Cost: $100-$250


        Looked at a lot of cat back exhausts, before finally settling on these from Pypes. I liked the black tips sticking out from the bottom of the red Mustang. Tried to do my due diligence and read all the reviews before making my decision. Went to a well established muffler shop, since I have neither the tech ability, nor the patience to do the install myself, and figured it would be cheaper to pay a pro, than screw it up myself, and still have to pay to clean up my mess. The installer has been doing this type of work, since this Mustang was made (18 years), and I was feeling good about the whole thing. Things went bad from the start. Neither side fit as described, and everything had to be modified to work, right down to the mounts. The tail pipes would have stuck up in the rear bumper as they came from the box. Long story short, installer noted that this setup fit the box it came in much better than the car it was put on. A 2 hour job ended up taking 5 hours. Not sure I would recommend these to anyone based on the fit. The one shining star from all this is the sound. NICE!!!! That is the only thing keeping me from making this a 1 star rating. Shame on you Pypes, for the lack of quality control!!! rusty

        Helpful (1)
      • January 02, 2019

        5 2001 Bullitt - future9er24 Installation Time: Afternoon

        Great addition for your daily

        Really dig this kit. Improved sound at idle without being too loud, then very aggressive at high RPM. If you like the snarl and crackle sort of sound, then you'll probably enjoy it. I expected some drone but never noticed any, even on long freeway drives. The sound was always a pleasant and aggressive tone. The black finish was also very high quality.

        Helpful (3)
      • September 09, 2018

        5 2003 GT - Mtavalone16 Installation Time: Shop Install Installation Cost: $100-$250


        Nice sound not too loud but not too quiet either. Has a nice deep aggressive tone. Love the black tips they look great against the silver body color. Overall perfect exhaust for good price

        Helpful (5)
      • May 31, 2018

        5 2003 GT - Rockelle

        Great Exhaust for the Price!

        This exhaust sounds great and was fairly easy to install.

        Helpful (4)
      • December 13, 2017

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

        Sound Great Look Great Feel Great

        Great exhaust system. Sounds awesome! I don’t have a garage so I paid a shop for the install. $100 and it took an hour. Super happy with my purchase.

        Helpful (4)
      • October 16, 2015

        4 1998 GT - Chaz Installation Time: Less than 1 Hour


        This was a great fit less than 45 minutes to install still have the cats on need to remove them so that its louder I will be ordering the pypes x pipe for better sound. Overall perfect fit

        Helpful (6)
      • October 06, 2015

        5 2004 GT - Bo Installation Time: Less than 1 Hour


        Excellent fit and sound. Appearance is the best with the black tips... Very happy with it being stainless steel at the price...

        Helpful (7)
      • July 17, 2015

        4 1999 GT - Ayegal23 Installation Time: Shop Install Installation Cost: $250-$500

        Looks good

        I went to have emissions done and was told my current exhaust was a wreck and needed to be replaced. I decided rather than spending $1900 for them to get stock I'd come here and get something i wanted for less. Looks great and sounds great.

        Helpful (5)

      Questions & Answers (4 answers)

      4 Top Rated Questions

      Had purchased a BBK X pipe from you, will this bolt up to this system

      • The Pypes Violator Cat-Back Exhaust kit is specifically designed to bolt-on to the existing stock H-Pipe of any 1998-2004 GT, Bullitt or Mach 1 Mustang. This will likely not fit that x-pipe without modification.

      Helpful (1)

      Will this make my car to load for California's exhaust law witch states the exhaust can be no louder then 95 desibles?

      • At this time we do not currently have a decibel rating for this exhaust.

      Helpful (1)

      Will this bolt directly up to a Pypes off-road X pipe without modifications?

      • This Pypes Violator Cat-Back Exhaust will mount to the Pypes X-pipe on your Mustang with little to no modification required.

      Helpful (1)

      Will this exhaust pass CA Emissions test?

      • This Pypes Violator Cat-Back Exhaust attaches to the exhaust after the catalytic converter and will not alter emission readings and therefore should pass all emission tests.

      Helpful (1)
      Post Your Question

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (4) 2.5" U clamps
      • (2) Muffler hangers
      • (2) Tailpipe hangers
      • Hardware kit (fastners, etc.)

      Tech Specs

      Cat-Back Exhaust Specifications
      Piping Material:409 Stainless Steel Tip Material :Black 304 Stainless Steel
      Piping Size:2.5"Tip Size:3.5"
      Muffler Type:ChamberedFitment:1998-2004 GT / Mach 1 / Bullitt Mustangs

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