WIN $5,000 For Your Mustang! Enter Now
Talk to a Mustang Expert
1-888-332-7930
Mon-Thu 8:30a-11p, Fri-Sun 8:30a-9p

Free Shipping - Get it by Dec. 24th available on most items - Details

Pypes High Flow Ceramic Catalytic Converter Kit (86-10 All)

Market Price $238.99 You Save 10% ($24.00)

$214.99 (pair)

FREE Shipping
  • Item 20036
  • MPN# CVM10K

In Stock Ships same business day. Choose options to add to cart

Features, Video & Details

  • Perfect for Naturally Aspirated Mustangs
  • Durable Construction
  • Polished 409 Stainless Steel Exterior
  • Ceramic Substrate Material
  • Small Under-Carriage Footprint
  • Will Pass Most Emissions Tests
  • 2.5" Inlet/Outlet Diameter
  • Fits 1986 to 2010 Mustangs

Review & Installation Video

Review & Install Video

Hey I’m Justin with AmericanMuscle.com, and I’m going to be reviewing Pypes high flow cat system for all 1986-2010 Mustangs. These cats are going to be a great compromise for those of you who are required by law to run some sort of catalytic converter system yet still allow you to ditch those ultra restrictive factory cats for something that’s going to flow a lot better, making for more power and sound versus your stock cats. These are going to also be great for someone who might currently be running an offroad X or H pipe, and just wants to tone down that rasp a little bit. This system from Pypes features durable 409 polished stainless steel construction and a very small footprint. This is going to be great for those of you going with a custom exhaust setup, or those of you who might be lowered an inch or two, and won’t have to worry about scraping these over speed bumps. A very important thing to point out with this particular system is that it features a ceramic substrate material on the inside. This system should only be used if you’re naturally aspirated, if you’re forced induction, then you’ll definitely want to check out Pypes’ other system, which features a metallic substrate on the inside, which is far more suitable to handle those higher exhaust gas temperatures. Getting the cats installed should only take you about 2 hours using these two supplied clamps. However, depending on your exhaust setup, you might need to go to your local parts store, and just pick up a couple more clamps. So if you’d like to go to an off road X or H pipe but your local laws just won’t allow for it, or you just want to get rid of some of that excessive rasp with your aftermarket exhaust, without hurting your power, you’ll definitely want to check out a set of these affordable high flow cats from Pypes Performance.

High Flow. Are you looking to free up your restrictive stock exhaust, but are required by law to run Catalytic Converters? Then AmericanMuscle has the answer you need in the form of Pypes High Flow Ceramic Catalytic Converter Kit.

Easy swap at the track. Every car enthusiast knows that catalytic converters suck the lifeblood - horsepower - out of your engine. If you're running a Pypes modular x-pipe style configuration for track / racing purposes, these cats give you an easy way to be street legal when you leave the track.

Durable construction. These Pypes Mini Catalytic Converters are built from polished 409 stainless and feature a durable Ceramic substrate material making them perfect for naturally aspirated applications. They weigh in at 2.5 lbs each and only measure 11 inches in length.

Small Footprint. Installed, the Pypes catalytic converters have a very Small under-carriage footprint that only takes up a virtually invisible 7” in length making them perfect for custom applications.

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

Application: The Pypes High Flow Ceramic Catalytic Converter Kit is designed for use with naturally aspirated Mustangs from 1986 to 2010. If you have a Mustang equipped with power adder check out the Pypes High Flow Metallic Catalytic Converter Kit.

Fitment: 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 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
Tech Specs
Specifications:
  • Universal 2.5" OD and ID design
  • Polished 409 stainless steel
  • Ceramic substrate material
  • Includes slots and 02 bung for 2005-2010 Mustangs
  • Sold as a set of two
Will it fit my Mustang?
  • Bullitt - 01, 08, 09
  • Foxbody - 86, 87, 88, 89, 90, 91, 92, 93
  • Mach 1 - 03, 04
  • V6 - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10
  • Cobra - 94, 95, 96, 97, 98, 99, 01, 03, 04
  • GT - 94, 95, 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
perfect

I am running the pypes mm system on my 07 gt and it just wasnt loud enough for me with the stock cats so I tried an off road h. it sounded awesome but a little to loud for an everyday driver so I bought ...

Read More
Helpful (1)

5/5
Great Quality

I have not installed these yet because im waiting for the O/R H-Pipe that i ordered with it to ship since it got put on backorder, so I will be updating this later. As for these cats, they arrived in ...

Read More
Helpful (1)

Overall Rating 4.6 out of 5 stars
Read All 77 Reviews

Customer Photos (20) Submit Your Photo

View All 20 Photos

You Might Also Like

32 Questions / 9 Answers

Ask a Question

I have an off-road x pipe that has no cats, can these replace the two converters that are directly off the headers?

CoopGT

  • Absolutely yes.

    Robb10

    Good Answer (0) (0)

Show 1 more answer Answer This Question I need this answered (0) (0)

need to know how bad it will take sound away I live in virginia we have inspections every year and I have a off road h pipe with 10 series flowmasters I bought from you guys and I love the way it sounds now If I buy them will it tone me down and if so would it hurt if I gut them all I really need is shields for visual but dont think you sell them

roach6913

  • For most exhaust systems this will actually produce a louder sound. With an offload x or h pipe it will only take away a slight amount of the sound that would normally be produced from it.

    jimmy131

    Good Answer (0) (0)

Show 1 more answer Answer This Question I need this answered (0) (1)

Pypes mid muffler Will this work with the Pypes mid muffler true dual?

Soma742

Answer This Question I need this answered (0) (0)

Mid-muffler Will this work with the true dual Mid-muffler design??

Soma742

Answer This Question I need this answered (0) (0)

Sound good with roush axleback and pypes x pipe? Will these high flow cats sound good with roush axleback and pypes x pipe? Will it make my mustang any louder?

mdlane3

  • yes a little louder. And it will get a little more HP.

    Jamesg169

    Good Answer (0) (0)

Show 1 more answer Answer This Question I need this answered (0) (0)

Sound and fitment? I have a 2005 v6 with stock headers and cats. I had it converted to a true dual exhaust at a local muffler shop. The rest of the exhaust consists of regular 2.5 in piping, magnaflow mid-mufflers and 3 in tips. It sounds good, however, the pitch is a little higher than I would like and it doesn't sound the greatest at idle. My plan is to buy pypes shorty headers, pypes high flow cats, and a pypes off road x pipe. I'm looking for a deeper, throatier rumble. Would these mods do the trick and deepen the exhaust note and make it a little bit louder? And how much of difference would the pypes cats make with the other mods? Also, should all of these mods fit together fairly easy?

JoshCampo

  • They fit fine. If you are doing a full exhaust you will likely end up cutting something. Sound is very mildly toned down from going catless. Many people think I have an off road system. Great value for the money

    Marcello

    Good Answer (0) (0)

Answer This Question I need this answered (0) (0)

More Products You Might Like

Customer Reviews (77) Write a Review

Overall Rating 4.6

out of 5 stars

Installation Time:Full Day

Installation Cost:$100-$250

  • Performance Gain 4.244898 4.2
  • Fit 4.6 4.6



  • 2/5

    October 18, 2016

    illegal in va

    Went to a shop but they said they couldn't put them on because they weren't marked or something.

    Tadashi

    Year: 2003 Submodel: V6

    Helpful (1) (0)

  • 5/5

    September 02, 2016

    GT SHAKER

    I returned the garage that I went to said it would be to much work and they were afraid they would damage the h pipe.

    somebowler

    Year: 2006 Submodel: GT

    Helpful (1) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    June 14, 2016

    Great!!!!!

    Purchased these to quiet down my bassani o/r x pipe on my 02 GT, since my whole neighborhood complained everyday. They did the job and I can notice hp gains. The car sounds nice still and flies around. Extremely easy to install and I recommend them to anybody!

    Gabe

    Year: 2002 Submodel: GT

    Helpful (1) (0)

  • 4/5

    Installation Time: Afternoon

    June 06, 2016

    sucks the soul out of your car

    I got these cause I needed to pass emissions. I feel like even though there high flow there so small it restricts the exhaust quite a bit. I've noticed severe power loss since putting them on and a drop in mileage. It feels like I went from a v8 to a v6. If your doing this for emissions just make sure you have some flex pipe handy to swap them back out when your done.

    Frankenstang

    Year: 2002 Submodel: GT

    Helpful (1) (0)

  • 5/5

    June 02, 2016

    Great Quality

    I have not installed these yet because im waiting for the O/R H-Pipe that i ordered with it to ship since it got put on backorder, so I will be updating this later. As for these cats, they arrived in 2 days and look great, very high quality and not a scratch or dent anywhere.

    Sean

    Year: 2006 Submodel: GT

    Helpful (1) (0)

  • 3/5

    Installation Time: Less than 1 Hour

    November 22, 2015

    Questionable High Flow

    Ive had these cats installed for 6 months now, they were great at first now they have started causing CEL for catalyst system not efficient. Looking into a different brand.

    Tcizzle

    Year: 1998 Submodel: GT Gainesville, FL

    Helpful (1) (0)

  • 5/5

    Installation Time: Shop Install

    September 28, 2015

    Tame the beast

    Put these high flow cats on after installing pypes x pipe and SLP loud mouth exhaust. I must say it quited down the car a bit but gave it some tone. Was way to loud and rapsy without the high flow cats. Awesome choice and amazing service

    VLO

    Year: 2007 Submodel: GT Orando,fl

    Helpful (1) (0)

  • 4/5

    Installation Time: Afternoon

    January 27, 2012

    High flow cats FTW!!

    I have installed these because my car was way to raspy and loud as i had installed the catless Pypes off road x pipe and the Pypes Bomb Cat Back. I did not expect any performence gain as i was looking into a better exhaust note but it did. I noticed the power gain as the throttle was more responsive, the engine flows better!! It also made the sound clear and less raspy, i get looks everywere i go as it is still just loud enough >:)

    ToxicReaper7

    Year: 2006 Submodel: GT New Brunswick, Canada

    Helpful (2) (0)

  • 5/5

    Installation Time: Afternoon

    January 19, 2012

    This one fits!

    Had to put in some cats to be legal so i sacrificed HP. However it wasn't much so it was definitely worth it. I bought of some Slp high flow cats first but they didn't fit where they needed to because of my shorty H pipe and Long tube headers; these, however, did so i was quite happy with them!

    Vincent

    Year: 1996 Submodel: GT

    Helpful (1) (0)

  • 5/5

    August 18, 2011

    Pypes Ceramic Converters

    Absolutely great product. Sounds great, easy install. I just gutted my o.e. converters, then welded these in-line behind the o.e. ones. Worked perfect. Highly recommend to anyone. Thank you

    Allen Pruitt

    Year: 2005 Submodel: GT

    Helpful (1) (0)

  • 5/5

    August 10, 2011

    perfect

    I am running the pypes mm system on my 07 gt and it just wasnt loud enough for me with the stock cats so I tried an off road h. it sounded awesome but a little to loud for an everyday driver so I bought these cats and welded them into my off road h and now the sound is perfect. not too quiet not too loud, awesome product

    Dustin

    Year: 2007 Submodel: GT

    Helpful (1) (0)

  • 5/5

    December 12, 2009

    Added to xpipe

    had headers and off road x pipe, was tood loud so added these and sounds great no loss of power

    Stephen

    Helpful (1) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    March 06, 2012

    High Flowing Cats

    07 GT/CS, SLP Long Tubes, SLP X-Pipe, SLP Loud Mouths. Old cats went bad swapped them out with the Pypes cats, fit was great, they might have quieted the exhaust down while driving the DB sounded lower, but when you hit the go fast pedal the roar and snap was there!!

    Blumax2007

    Year: 2007 Submodel: Other Florida

    Helpful (3) (1)

  • 5/5

    October 13, 2010

    Absolutely no restriction

    I previously purchases JBA shorty headers, Pypes x pipe and Magnaflow Magnapacks for my 2007 4.0 mustang. I thought that with that setup my car had an awesome deep loud tone to it and sounded great when accelerating. I just had these cats put on and the difference with just simple cats is ridiculous! I thought with the setup I had before I had a sick sounding car, but once I put these on and accelerated and hell when I even turned the car on I was in complete shock I highly recommend these, its a cheap and easy way to get the best air flow out of every mustang

    John Szukis

    Year: 2007

    Helpful (21) (1)

  • 5/5

    October 02, 2009

    PYPES HIGh FLOW CATS

    These are awesome, didnt lose any HP, had to throw them on bc of emission standards in GA...they sound great too!!!!!I highl recommend!

    Rob

    Helpful (19) (1)

  • 4/5

    Installation Time: Afternoon

    October 03, 2013

    looks sharp

    Keeps the nice sound without taking power away. Used to have no cats but these are just better to have.

    jerrysolis

    Year: 2008 Submodel: GT Edinburg, TX, USA

    Helpful (2) (1)

  • 5/5

    June 03, 2010

    Amazing Product

    Have to say these are the best aftermarket Cats on the market, better than the magnaflows i had on my previous car, my installer had to cut the cat pipe down and fab up new piping but def worth it, on my 04 i was even able to use the O2 bung on the cat, A MUST if you wanna stay legal and have extra power and great deep sound with flowmasters!

    Kevin

    Year: 2004

    Helpful (14) (2)

  • 4/5

    December 07, 2010

    Pypes Cats

    Looked for some "high-flow" cats when my stock ones died. Put these on my V6. I wasn't expecting a difference in the sound department, but these made my pre-installed Ford Racing Dual exhaust sound much deeper. I've also noticed a bit of power gain. Can't wait to Dyno to see how much. I recommend this product and I approve this message.

    Thom Corwin

    Helpful (13) (3)

  • 5/5

    October 19, 2009

    cobra

    had o/r x pipe on and was too raspy. welded a pair of converters on, and the rasp went away. not to mention the cobra regained its low end torque.

    joe

    Helpful (7) (0)

  • 5/5

    February 26, 2011

    Great Product

    I have had my 2003, 3.8L for about a year now. ive done a few things to it, new transmission, clutch, and an 8.8 rear conversion. Had a nice dual exhaust setup on mine. i had stock cats, and just today my cats came in. Oh My Goodness, the big difference in sound, power, and surprize was amazing. ive actually had peope look at my car and ask me if it was a GT. Very good product, very nice employees on the phone. Very Nice setup. Thanks for everything guys!!!

    Dante T.

    Year: 2003 Submodel: V6

    Helpful (9) (2)

Related Mustang Categories