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 Metallic Catalytic Converter Kit (11-14 All)

Market Price $312.99 You Save 9% ($29.00)

$283.99 (pair)

FREE Shipping
  • Item 20135
  • MPN# CVM11K

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

Features & Details

  • Perfect for Force Inducted Mustangs
  • Rugged Construction
  • Polished 409 Stainless Steel Exterior
  • Metallic Substrate Material
  • Small Under-Carriage Footprint
  • Will Pass Most Emissions Tests
  • 3" Inlet/Outlet Diameter
  • Fits All 2011 to 2014 Mustangs
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 Metallic 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.

Rugged construction. These Pypes Mini Catalytic Converters are build from polished 409 stainless and feature a durable Metallic substrate material making them perfect for force inducted 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 Metallic 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 Metallic Catalytic Converter Kit is specifically designed for use with power adders such as a Supercharger, Turbo-charger, or Nitrous equipped Mustang from 2011 to 2014.

Fitment: 2011 2012 2013 2014 Details

What's in the Box
  • (2) Catalytic Converter
Installation Info
Tech Specs
Specifications:
  • Universal 3" OD and ID design
  • Polished 409 stainless steel
  • Metallic substrate material
  • Includes slots and 02 bungs
  • Sold as a set of two
Will it fit my Mustang?
  • Boss 302 - 12, 13
  • V6 - 11, 12, 13, 14
  • GT - 11, 12, 13, 14
  • GT500 - 11, 12, 13, 14

Most Helpful Reviews

5/5
High Flow cats do make a difference

I asked around a lot of people and they would say don't get high flow cats you won't gain any power or sound. That's a complete lie, you feel the car open up and breathe a little better in terms of power ...

Read More
Helpful (1)

5/5
GREAT CATALYTIC CONVERTERS

GREAT FINISH AND FIT.SMALL AND COMPACT. CHANGED THE SOUND ALSO.DEEPER IN SOUND.PERFECT

Helpful (1)

Overall Rating 4.7 out of 5 stars
Read All 13 Reviews

Customer Photos

You Might Also Like

9 Questions / 8 Answers

Ask a Question

Will these work on naturally aspirated engines?

Justin321

  • yes, they will work. But have you considered the ceramic one from pypes. They are designed for the Naturally aspirated car.

    RdRckt78

    Good Answer (1) (0)

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

Do you have to have a forced induction system with these or could you get them for just the sole purpose of having higher flow cats?

Lpeters

  • Not running forced, just wanted more exhaust flow

    20115pointslow95

    Good Answer (1) (0)

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

Ford Racing Cut and Clamp Would these fit the Ford Racing Cut and clamp Mid Pipe?

2013Mustanger

  • The FRPP cut and clamp x pipe will fit these. The FRPP cut and clamp reuses the factory cats. You could replace them with this if you so choose.

    Paulyd

    Good Answer (0) (0)

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

Hello, I am interested in the cat converter kit and have a few questions. I plan on getting the Ford Racing Cobra Jet intake with in the next year, but as of now I have a stock intake. Will the Cobra intake hurt or help if I have the cat converter installed? What kind of sound difference will the pypes make? I have a GT500 style axel back with a Flowmaster Outlaw series X pipe to the cat. Will the three different types of exhaust hinder each other in anyway or create drone in the cab? Thank You.

Lasky

  • The Cobra Jet Intake and these High Flow Catalytic Converters will work perfectly together. A larger intake with high flow cats will increase airflow which will increase power. High Flow Cats will give the car an aggressive sound while not making the car obnoxious. All these parts together will give the car a great rumble while not giving you a lot of drone in the cab.

    AshleyK

    Good Answer (0) (0)

Question Resolved

Will these pass CA smog emissions?

Nate

  • The Pypes High Flow Metallic Catalytic Converter Kit (11-14 All) will not pass California CARB emissions.

    KevinD92

    Good Answer (0) (0)

Question Resolved

Tune Do I need a tune?

2013

  • A tune is not REQUIRED, but always RECOMMENDED to maximize the performance you are able to get out of your mods. Contact BAMA and see what they can do for you, Great Guys!

    chriscarr86

    Good Answer (5) (0)

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

More Products You Might Like

Customer Reviews (13) Write a Review

Overall Rating 4.7

out of 5 stars

Installation Time:Afternoon

Installation Cost:$100-$250

  • Performance Gain 4.444445 4.4
  • Fit 4.222222 4.2



  • 2/5

    August 13, 2016

    CEL issue

    Bought these because I wanted my stang to be a little louder which this product totally delivers on! BUT it does come with a CEL issue. I had these installed by the dealership and now 1 week later CEL. Took back to dealership and they said it is just throwing the CEL because of sensors. It is completely hooked up properly but they said it will throw a CEL unless I tune it out(which will void warranty). Wouldn't recommend if you don't want to tune your cats out.

    Dayton

    Year: 2013 Submodel: GT

    Helpful (1) (0)

  • 5/5

    August 03, 2016

    GREAT CATALYTIC CONVERTERS

    GREAT FINISH AND FIT.SMALL AND COMPACT. CHANGED THE SOUND ALSO.DEEPER IN SOUND.PERFECT

    Noel

    Year: 2011 Submodel: GT500

    Helpful (1) (0)

  • 5/5

    July 14, 2016

    High Flow cats do make a difference

    I asked around a lot of people and they would say don't get high flow cats you won't gain any power or sound. That's a complete lie, you feel the car open up and breathe a little better in terms of power and not only that they make the car sound like a beast. Add around 15-20 volume and make the tone a lot more aggressive, I paired these with a JBA 3 inch to 2.75 Inch H pipe and it made my roush axle backs scream, the car sounds like a beast.

    Kaveh

    Year: 2014 Submodel: GT

    Helpful (1) (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    December 06, 2013

    Finally impressed with my exhaust

    I have been doing research for months trying to decide if I want to get high flow cats or not. Some ppl say that they are the same as your stock cats, I call bulls**t. I got the shop to install these, they did have to make a few custom changes to it but as long as there are no exhaust leaks I'm happy. I started my stang up from a cold start and instant smile on my face! I have the magnaflow tru x pipe, no resonators, and 10 series mufflers. I wanted a loud exhaust and it was loud before I put the cats on but not satisfied. After hearing my car now I am finally satisfied. As far as performance gains, I cannot tell because it was wet on the roads. No complaints the O2 sensors went in perfectly, no check engine light either. If you want your car louder I definitely recommend some high flow cats

    Bwade13

    Year: 2012 Submodel: GT

    Helpful (3) (0)

  • 4/5

    Installation Time: Afternoon

    February 27, 2014

    2013 3.7L highFlow cats

    noticeable improvement in performance, final piece to my exhaust which let it breathe. (full intake/exhaust) The sound has changed completely. It is louder.

    cvanhoose

    Year: 2013 Submodel: V6 Davie, FL, USA

    Helpful (2) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    March 16, 2016

    Great addition

    The sound quality is increasingly better, louder, and bolts up perfectly. Great product.

    JMS

    Year: 2012 Submodel: GT

    Helpful (1) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    March 07, 2016

    Functional and compliant!

    Converters fit great while I made my own catted connection pipe between Borla long tube headers and Corsa Sport cat back exhaust. They came in polished and the O2 sensor fit perfectly inside of them. It was a good by if you want to be compliant.

    Mikey

    Year: 2015 Submodel: GT

    Helpful (1) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    February 16, 2016

    Does the job for inspection but exhaust note is still great.

    Before installation of these high-flow cats, my exhaust setup was stock headers - cat deletes - xpipe - deleted resonators - GT500 dual tip axle backs, and I loved the sound. But I couldn't get the O2 sensors to be "ready" to pass inspection. Even with the proper tune loaded. So I installed these and passed inspection no problem and the sound is still great, just a little bit quieter at low rpm. I should have installed these high flow cats to begin with.

    JETAG93

    Year: 2013 Submodel: GT Tomball, TX

    Helpful (1) (0)

  • 5/5

    July 02, 2015

    high performance catalytic converter

    The high performance catalytic converter awoken my mustang allowing it to breath better. I also gave it a better sound to it. A very deep note was accomplished after installed. It took like to hours to wield on. I was very satisfied, now I'm on to getting bbk headers added to my car.

    Aeron

    Year: 2014 Submodel: V6 Arlington,tx

    Helpful (1) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    February 19, 2015

    High Flow Cats with a Forced Induction setup

    Have to ship my car to Germany and must pass emissions, Was worried about the restriction from installing cats with my Procharger setup. Over 500 miles and feel no loss of power or lag, flows excellent! Can't beat the Price and As always AM shipped promptly! Will not buy from anywhere else!

    NickSMontano

    Year: 2014 Submodel: GT fort Gordon, GA

    Helpful (1) (0)

  • 5/5

    Installation Time: Afternoon

    December 20, 2013

    High quality Cats

    The quality of these are impressive. Small form to fit clean and fab into place. Much needed with my 3" heartthrob exhaust which is also the smart way to do this on a budget.

    QuickGT

    Year: 2012 Submodel: GT Las Vegas, NV, USA

    Helpful (0) (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    June 29, 2016

    High flow!

    Got these because my stock cats were taken off for more HP but it became to loud over time so I put high flow cats on and let me tell there is not much of a HP difference between running no cats compared to high flow cats they noise is a little louder then stock but not in bearable also remember these are 3in cats so you might have to have them wielded on, other then that it's a good product a must buy if you want more HP/TQ but don't want it unbearably loud.

    Ghul

    Year: 2013 Submodel: GT

    Helpful (0) (1)

  • 5/5

    Installation Time: Afternoon

    December 05, 2016

    Worth the money.

    Well I'm not much of a mechanic and I didn't know that if you don't plan to change your headers than no point changing the cats. It is a difficult job and pointless without the headers.

    DiHun

    Year: 2011 Submodel: GT

    Helpful (0) (0)

Related Mustang Categories