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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) ...

Read More
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)

Read All 24 Reviews
Overall Rating 4.8 out of 5 stars

Customer Photos (4) View All Photos

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12 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: 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)

  • 5/5

    March 31, 2011

    dam good

    this product kills the competition. sounds insane while giving the power of straight pipes

    cody

    Year: 2000 Model: GT Driving Style: Daily Driver

    Helpful (6) (1)

  • 5/5

    December 29, 2010

    great cats

    I am extremely happy with these high flow cats. I was concerned will losing clearance under my 2008 Mustang, but the size of these cats matched the stock cats. This allowed them to be installed right where they are from the factory. Even though they are not large enough to place the O2 sensors, they can still be mounted just behind them on the pipe. Now I have that high performance, that great sound, and maintain my states requirements, exactly what I was looking for.

    Garry Tossing

    Year: 2008 Driving Style: Daily Driver

    Helpful (8) (3)

  • 5/5

    July 28, 2011

    SLP cats

    This things are everything you would expect from SLP. I have them custom welded into a bbk x-pipe with loudmouths and I couldnt be happier with it. they give me the sound and the quality i was looking for

    Dalton

    Year: 2001 Model: GT Driving Style: Daily Driver

    Helpful (4) (1)

  • 5/5

    April 06, 2011

    SLP Cats

    I added them into my bbk o/r x pipe (long tube headers, Flowmaster 40s) They sound great. Here is the problem My stang has the lowering springs. The drivers side cat has to sit about a inch and a half lower for the tranny linkage than the passenger side This puts them less than 1 1/2 inches off the road. and have scraped them on the road a couple times now. I don't even dare go over a speed bump. I really wish i could keep them they do sound great and I'm not setting off car alarms in the parking lots anymore I am going with the MagnaFlow HiFlow Cats they are a lot smaller in diameter

    Sean

    Year: 1999 Model: GT

    Helpful (2) (0)

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