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Pypes Street-Pro Dual Catback Exhaust (98-04 V6)

37 Reviews
Our Price


  • Item #20025
  • MPN #SFM54
  • Market Price $510.99
  • You Save 10% ($51.00)
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Customer Photos
  • Aggressive V8 look and sound
  • Increases of 8 to 13 Horse Power
  • Bolts up to the stock factory Y pipe
  • 2.5" 409 Stainless Steel tubing
  • 3" polished 304 Stainless Steel tips
  • Fits 1998-2004 V6 Mustangs
V8 Style And Sound. Bolting on a Pypes Street-Pro Catback System to a stock 1998 to 2004 V6 will yield an instant 8 to 13 horsepower gain! It features two Street-Pro mufflers for Pypes ultimate in flow (and power gains) with an aggressive V8 sound.

No Cutting or Welding Required. Unlike so many other aftermarket V6 dual exhaust kits that require cutting and welding the stock mid-pipe, the Pypes Street-Pro Catback system simply bolts right up to the stock factory Y-pipe for a no hassle installation.

Quality Materials.
This Pypes Dual Catback Exhaust is constructed from free flowing mandrel bent 2.5" 409 stainless steel piping and features Pypes Street-Pro 3-chamber mufflers for an aggressive throaty sound. The whole system is finished off with a set of 3" Polished 304 stainless steel tips for classic Muscle Car styling.

The Pypes Street-Pro Dual Cat-Back Exhaust kit is specifically designed to simply bolt-on to existing stock factory Y-pipe on of any 1998 to 2004 3.8L or 3.9L V6 Mustang for more power and a more aggressive sound.

Mustang Fitment: 1998 1999 2000 2001 2002 2003 2004 Details

What's in the Box
Hardware included:
  • (4) 2.5" U clamps
  • (2) Muffler hangers
  • (2) Tailpipe hangers
  • Hardware kit (fastners, etc.)
Installation Info
Tech Specs
Catback Exhaust Specifications
Piping Material: 409 Stainless Steel Tip Material : Polished 304 Stainless Steel
Piping Size: 2.5" Tip Size: 3"
Muffler Type: Chambered Fitment: 1998-2004 V6 Mustangs
  • V6 - 98, 99, 00, 01, 02, 03, 04

Most Helpful Reviews View All

Overall Rating 4.5/5 Write a Review
Love It!!!!

I love this exhaust, it makes my v6 run a lot better, sound amazing, and even save gas. Thanks american muscle i love this product and i recommend it to anyone who is wanting to get great sound out of

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Helpful (28) (3)

A Must!

This system looks and sounds great! I had a single exhaust on a 96 V6 3.8L, that I converted to this cat back dual system! ANYBODY can do this with the instructions given on the website! I have next

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Helpful (24) (6)

Customer Photos (18) View All

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Q & A (2 Questions, 1 Answers) Ask a Question

Could i put a X pipe on this and make it a full duel? The X pipes on AM say they are for catted gt exhausts but i was wondering if they would still work for this? Any extra details are appreciated.

Lafoca Year: 2004 Model: V6

Question Resolved
Good Question (0) (0)
  • Unfortunately, this kit is designed to be used with your factory Y-pipe. You would just need the Pypes V6 True Dual Exhaust Kit rather than this kit. It has the same Street-Pro 3-chamber Mufflers as this kit and comes with the catted x-pipe to make it a true dual system. Check out the link below!

    Helpful (1) (0)

    LisaS Year: 1992 Model: GT

If i buy this kit will i need anything else or is this everything needed for a dual exhaust conversion?

Andrew876 Year: 2002 Model: V6

Be the First to Answer This Question
Good Question (0) (0)

Reviews (37) Write a Review

  • 5 Stars .68 67%
  • 4 Stars .19 19%
  • 3 Stars .11 11%
  • 2 Stars .03 3%
  • 1 Stars 0 0%

out of 5 stars

32 Customers Recommend this Product

Installation Time:Full Day

Installation Cost:$100-$250

  • Loudness / Volume: 3.6 3.6/5
  • Exhaust Note: 4 4/5
  • Fit & Finish: 3.8 3.8/5
  • Bang For Your Buck: 4.4 4.4/5
Filter By Sort By
  • 5/5

    Love It!!!!

    April 22, 2010

    I love this exhaust, it makes my v6 run a lot better, sound amazing, and even save gas. Thanks american muscle i love this product and i recommend it to anyone who is wanting to get great sound out of there v6!!!


    Helpful (28) (3)

  • 5/5

    A Must!

    May 03, 2008

    This system looks and sounds great! I had a single exhaust on a 96 V6 3.8L, that I converted to this cat back dual system! ANYBODY can do this with the instructions given on the website! I have next to no experience with cars in general, and this is the first modification I have ever done. I am very impressed! A must buy if you are even considering it!


    Helpful (24) (6)

  • 5/5

    Sweet for the price

    March 22, 2008

    It may not be as high priced as some of the other ones, but overall, its a great exhaust. This kit comes with brackets you can us to fit a GT bumper or a V6 bumper. I kept the V6 bumper and cut hole in it, which came out great!!!


    Helpful (18) (5)

  • 3/5

    pypes 409 stainless steel street-pro catback w/ polished

    July 28, 2010

    May have to be ordered if not in stock so may take 1-2 weeks. Does Not Sound like a v8 at all and the y pipe that comes with the kit does not fit right! they forgot to bend it so it does not touch or rub your transmission, resulting in one mufflers being lower than the other. because of this it scrapes the floor a lot on big bumb's depending on your speed! and since you have to angle the mufflers so the y pipe doesn't rub against the transmission the muffler tips are not where there supposed to be. i will have to take it to a mechanic so he can bend my y pipe so i can tuck everything in so both of the mufflers are in the correct position unless you make it a strait pipe which would get rid of this problem. everything is bolt on so u can do it yourself. do not pay your mechanic to do it unless you want him to weld it for you but really there is no need for you to weld.. however it does save more gas and sounds a little better depending if you have an automatic mustang or a stick shift (no v8)


    Helpful (10) (2)

  • 3/5


    July 16, 2010

    I ordered this system and tried to install it finding out that the company sent me a warped deffective kit. I did get a replacement after having to take pictures and get a quote from a shop. When you get the system for yourself you will see how the mufflers are cheap as the single stock exhaust you get. So basically you're buying two stock pipes Goodluck

    Evan S.

    Helpful (10) (5)

  • 3/5

    This is not average

    November 30, 2010

    After cutting out factory exhaust, (like instruction said) My 02' V6 must be different, because I had to cut 7 1/2" off the new Y piece and was still difficult making all matchup. I've worked on my cars for years, and for prices that you have to pay now-a-days, things should work out a whole lot better! Nothing "throaty" about the sound either, but it does look good. (should after 4 1/2 hours of hard labor)

    Tom Vaughn

    Year: 2002 Model: V6 Driving Style: Daily Driver

    Helpful (2) (1)

  • 5/5

    Great for the new build!!! Must buy!

    July 31, 2010

    This was the first thing i bought for the 99 v6. It took a few days to actually put it on since i live in the north country of New york, and the Underneath was all rusted so theyre was nonthing to put the hangers too... So i had to do some weilding. But after some cuts and bends the sound was perfect! and the increase was very noticable. too bad i have the chip that turns off at 115... GREAT PRODUCT!!! Thanks AM:D:D


    Year: 1999 Model: V6

    Helpful (2) (2)

  • 5/5

    pypes 409 stainless steel street-pro catback w/ polished

    May 08, 2010

    Nice exhaust fast shipping it was hard to put it on but after some modifications that i did it is perfect now sounds good i jst removed the 2 y pies and put a straight tube on each side and it sounds relly good noe nice american muscle


    Helpful (2) (2)

  • 5/5


    February 03, 2011

    didnt even almost fit my car i had to cut and weld them at the y two time to make them fit. cost almost as much to fix them to make them fit as it did to buy them.

    josh pearl

    Driving Style: Show

    Helpful (0) (1)

  • 5/5

    pypes street pro dual exhaust

    January 18, 2011

    my buddie put this on his 96 mustang and it sounds alright. i just cut the stock muffler off my 94 and put a flowmaster 40 series (from here) and him and evey body we ask says mine sounds way more like a v8


    Year: 1994 Driving Style: Daily Driver

    Helpful (0) (1)

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