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SLP High Flow Catalytic Converter Kit (96-10 All)

24 Reviews
Our Price

$191.95

  • Item #23034
  • MPN# M31040

  • Market Price $199.95
  • You Save 4% ($8.00)
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Customer Photos
Features
  • Improved Exhaust Flow
  • Universal 2.5" OD and ID Design
  • Stainless Steel Construction
  • Ceramic Substrate Material
  • Will Pass Most Emissions Tests
  • Durable Construction
  • Sold as a Set of Two
Description
High Flow. Are you looking to free up your restrictive exhaust, but are required to use Catalytic Converters? AmericanMuscle has the answer in the form of SLP's High Flow Ceramic Catalytic Converter Kit.

Durable Construction. These SLP Catalytic Converters are made out of Stainless Steel and a durable Ceramic substrate material making them perfect for naturally aspirated applications.

Will pass most emission tests. SLP's High Flow Ceramic Catalytic Converters will pass most states emissions testing procedures. However, check your local and state ordinances for installation and usage regulations.

Application. This SLP High Flow Catalytic Converter Kit is designed for use with Mustangs from 1996-2010 and is sold as a set of two.

Fitment: 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 Details

What's in the Box
  • (2) Catalytic Converters
Installation Info
Will it fit my Mustang?
  • Bullitt - 01, 08, 09
  • Mach 1 - 03, 04
  • V6 - 96, 97, 98, 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10
  • Cobra - 96, 97, 98, 99, 01, 03, 04
  • GT - 96, 97, 98, 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10
  • GT500 - 07, 08, 09, 10

Most Helpful Reviews

5/5
SLP Cats

I have a MAC Catted H-pipe. Found out 2 weeks ago that one of my cats went bad that came with the MAC H-pipe. ordered these SLP cats to Replace the old cats and I have no complaints! (yet i Guess...lol) ...

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Helpful (1)

5/5
very nice size can fit in a really tight area.

overall it has stopped the cel from flickering on and off once in awhile. legal for myu area.

Helpful (1)

Overall Rating 4.8 out of 5 stars
Read All 24 Reviews

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13 Questions / 4 Answers

Ask a Question

will these work with a Bassani o/r x-pipe?

mikep02

  • They will fit but are a little shorter then the flow tubes so you'll have to add a few inches of adapter pipe to either end.

    RANCOR

    Good Answer (1) (0)

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will these fit i want to know if they fit a 2001 v6 3.8 mustang

carlos0422

  • These will fit in fine. I believe they are the same length so you should be able to cut out the old and slip these right in. Not sure if you're aware but, your car has two resonators right off of the exhaust manifolds. These then dump into the converters and out from there. The resonators are offset a bit so these will not be a direct fit at that location.

    RANCOR

    Good Answer (2) (0)

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Will it fit? Would my exhaust be louder? I have a 97' V6 which has a pre cat and then the cat. Is it possible If I could just take off the pre cat and replace my 2nd cat with this Slp high flow cat. And if possible then what kind of performance/ loudness gain am I looking at? (By the way, I have dual Slp Loudmouth mufflers installed)

Evans1997

  • I recommend leaving the pre-cats alone, chopping off the rear cats and straight-piping it. Have holes drilled in the pipes for the rear O2 sensors, get mil-eliminators to to attach to those, (takes care of CEL) -you will see a huge performance gain! If you still prefer your way, have the shop cut open the pre-cats and gut the ceramic mesh inside, then weld them shut again. This way you could lop off the rear cats and toss the high-flows on and it'll be quite cheaper. Yes car will be louder, but not anything that will get you pulled over. Hope this helps :)

    PsykoKlown811

    Good Answer (0) (0)

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Customer Reviews (24) Write a Review

Overall Rating 4.8

out of 5 stars




  • 4/5

    July 31, 2016

    Great purchase, be cautious!!

    Let me start by saying these things sound great! Definetly added a little roar to my 3.8. Not to mention, a little power boost is noticed. On the other hand, my engine light popped on and I definetly noticed a reduction in gas mileage. Be Cautious!

    02Stang

    Year: 2002 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 1

    Helpful (1) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    March 04, 2016

    Slolz high flow

    Delivered on time and neatly packaged... I was looking for something that wouldn't make my car sound so low and these definitely did the job.. if anything they make my car sound so much better.. definitely recommend if you're looking to keep your car sounding loud..

    Ally

    Year: 2003 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 2

    Helpful (1) (0)

  • 5/5

    Installation Time: Afternoon

    May 15, 2015

    Kenny

    Great sound, and easy to install with no Eng. Light

    kennyg

    Year: 2008 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 5+ Pueblo CO

    Helpful (1) (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    June 26, 2014

    I have low end torque again!

    Bought these to accompany the gutted primaries on my '02 P71, eliminated overly loud exhaust and gave me my low end torque back. Roasted the tires for 5 seconds before the car even came off the line! I plan on throwing an X pipe and a pair of Pypes M80s mufflers on in a couple weeks. Thanks American Muscle!

    PsykoKlown811

    Year: 2002 Model: Other Driving Style: Street / Strip 'Stangs I have owned: 1 California, USA

    Helpful (1) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    December 27, 2013

    The Sound... THE SOUND

    This is a great product, no only will help you to get a little more HP, but it will as well help you with the sound. I already have SLP LM1 and they sound great with the stock CATs, But still not that off-road sound that I wanted. I bought this specially because of the SLP brand and the reviews. I cannot be more happy with them. The sound is the nearest you can get to an off-road sound (with the SLP LM1 combo) I will upload a Video latter so you can judge for yourself s. The installation requires a 5 inch pipe so it can fit your stock mufflers if you are removing your stock cats. Other than that it took my welder about 20 minutes to have both cats welded.

    Demontem

    Year: 2004 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 1 Las Cruces, NM

    Helpful (1) (0)

  • 5/5

    Installation Time: Afternoon

    August 18, 2013

    Fixed my bbk o/r x pipe

    I got these to make my exhaust smell and sound better and to be legal. The bbk o/r x pipe sounded terrible with stock mufflers and smelled worse. It was an easy install with a saws all and clamps with good fitment. It toned down the rasp but is still louder and smells almost stock. I feel a little more power compared to stock exhaust. Recommended!

    Chasing300

    Year: 2001 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 1 Carlton, MN, USA

    Helpful (1) (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    May 22, 2013

    very nice size can fit in a really tight area.

    overall it has stopped the cel from flickering on and off once in awhile. legal for myu area.

    99snake

    Year: 1999 Model: Cobra Driving Style: Daily Driver 'Stangs I have owned: 10+

    Helpful (1) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    March 13, 2012

    SLP Cats

    I have a MAC Catted H-pipe. Found out 2 weeks ago that one of my cats went bad that came with the MAC H-pipe. ordered these SLP cats to Replace the old cats and I have no complaints! (yet i Guess...lol) I had the old cats cut out and the new SLP Hi-Flow cats welded in. The sound is still agrressive and Im sure they perform just as well..if not better.. NOTE: SLP says that these cats are made ONLY for fitment with SLP X-pipes. This is not the case..you can pretty much have them welded in in any set up...

    SyNdicateZ

    Year: 2002 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 2 Mass

    Helpful (1) (0)

  • 4/5

    January 11, 2010

    SLP high flows

    Overall great product with great customer support. AM price matched it for me and everything. I ended up writing an install guide for the cats in hopes to make the installation for others a bit easier. Only reason why I gave it 4 stars is because no installation hardware came with the kit. You either need to have them welded in or you need to purchase 4 exhaust clamps. (I bought 4 for $8)

    Andy M.

    Helpful (27) (1)

  • 5/5

    March 31, 2011

    SLP High Flow Cats

    I had these cats welded on to my bbk o/r x pipe and no complaints at all. Top notch SLP quality, makes a non-catted x pipe sound so much better throughout the rpm band, no more rasp with my exhaust and sounds much cleaner

    Mark

    Year: 2002 Model: GT

    Helpful (9) (1)

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