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Pypes High Flow Metallic Catalytic Converter Kit (11-14 All)

Market Price $346.99 You Save 12% ($41.00)
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$305.99 (pair)

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  • Item 20135
  • MPN# CVM11K

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    Features, Video & 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

    Review & Installation Video

    Review & Install Video

    So you should be checking out Pypes cats for your '11 through '14, if you're the owner out there that might be running a little bit of forced induction, maybe a small can of nitrous, if you're looking to stay legal in terms of emissions. But if you're looking to ditch your factory-restrictive cats for something that's going to flow a little bit more nicely, give you a little bit more a bump in volume. These cats are going to give you a great balance in noise reduction, and getting rid of that gassy smell. If you are running an off-road system, you're also looking to quiet that down as well. When it comes to the installation, expect to spend a couple hours in the shop, because you are going to need to cut and get these into place. For that, you're looking at two out of three wrenches on my difficulty meter here. These cats are going to feature a three-inch inlet and outlet, and can be adaptable to most stock systems. But you're not going to have any issue getting these on with an aftermarket three-inch. These are going to be made up of a durable 409-stainless steel that's going to be polished. They will be made out of a durable, substrate metallic material. It's going to make them ideal for a forced induction application. Now, I say that because metallic materials are going to be able to accommodate higher heat exposure. Extensive heat cycles and damage will take a toll on ceramic cats, and if you [tap] them once, if they start to come apart, they will deteriorate very fast. If you're running a stock or a mild bolt-on Coyote and you're not too concerned about the build quality, SLP will have an option that will run a little bit less. That's still going to help you quiet down that off-road mid-pipe if you're looking for that.Now, in terms of the pricing, expect to be spending about $280 to $300 to get these onto your car, as well as keep you emissions-friendly. Now, compared to SLP's style, like I've just mentioned, expect to be spending around $190 to $200. But again, take into consideration, it's not going to have that tough metallic durability. Install-wise here, guys, like I said a little bit earlier, this is going to call for a two out of three-wrench job on my difficulty meter here, and about two hours' worth of labor, depending on whether or not you're going to be replacing your factory cats or adding these onto an existing off-road mid-pipe. Either way here, guys, you are going to need a jack and jack stands to get that car off the ground, a basic socket set, last, but not least here, a Sawzall, and a couple fresh blades. Now, if you are going to be installing these on an off-road mid-pipe, the locations are going to be very easy to see exactly where you're putting these in. However, if you are going to be replacing your existing cats, make sure to do a bunch of measuring just to make sure once you clamp them on or weld them in that you're good to go. That's going to wrap up my quick review of Pypes high flow metallic catalytic converters, fitting your 2011 through 2014 Mustang, which can be found right here at americanmuscle.com.

    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

    CA Residents: Warning: California's Proposition 65

    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?

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    Customer Photos

    Questions & Answers (20)

    5 Top Rated Questions

    will these high flow cats make my stang not smell like gas the same as the factory cats or will it smell of gas just less

    • The Pypes High Flow Metallic Catalytic Converter Kit will slightly increase exhaust odor over the stock cats. If the car smells like fuel, this typically indicates a rich condition, which can be caused by a number of different issues.

    Helpful (1)

    This might be a stupid question, but will these fit on the stock hybrid pipe that comes on the 11-14s?

    • These can fit with the stock hybrid pipe however these are designed specifically for Mustangs with forced induction.

    Helpful (1)

    Tune Do I need a tune?

    • 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!

    Helpful (1) Show 1 more answer

    I recently had jba high flow catted x pipe installed and have a check engine light a 420 and 430 codes for bad cats will these turn the light off or will the light stay on?

    • These catalytic converters would replace the bad cats and would turn the light off.

    Helpful (0)

    Will these pass NY smog test?

    • Hello, The Pypes High Flow Metallic Catalytic Converter Kit will pass most emissions in most state However, check your local and state ordinances for installation and usage regulations.

    Helpful (0)
    Post Your Question
    10 More Questions
    Will these fit with this cat back? https://www.americanmuscle.com/pypes-midmuffler-catback-11v6.html 1 answer
    Can I use these to replace my catalytic converters on my 2013 Shelby gt500? 1 answer
    Are these high flow cats emissions legal in California? 1 answer
    Are these 200 or 400 cell count? 1 answer
    What temps can these cats hold up to? 1 answer
    Hi AM, I currently have a 2013 V6 with Roush ABs and CAI. Along with BBK Shorty Headers and plan to keep it that way. What will be some differences regarding volume and tone? Will these cats throw a CEL? Thanks! 1 answer
    Do these require custom fabrication or bolt up to the stock headers and h pipe 1 answer
    Hey AM! I was wondering if these could be retrofitted onto a set of Borla long tube headers and cat back exhaust for emissions purposes. It would make having the power and legality much easier. Thanks in advance! 1 answer
    So the holes in the cat(is that where the front o2 sensors go?) and I just plug up the old holes from factory cats? Also should these throw any CEL? 1 answer
    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. 1 answer

    People Who Bought This Item Also Bought

    Customer Reviews (26) Write a Review

    Overall Rating 4.2

    out of 5 stars

    Installation Time:Full Day

    Installation Cost:$100-$250

    • Performance Gain 4.181818 4.2
    • Fit 4.136364 4.1



    • 5/5

      Installation Time: Afternoon

      November 07, 2018

      Pypes high flow cats

      Amazing product!! Sounds great and you can notice the difference on the low end.... It does limit ground clearance so watch those bumps.

      CtK

      Year: 2014 Submodel: GT

      Helpful (0)

    • 4/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      September 15, 2018

      Pypes High Flow Metallic Catalytic 2014 GT

      These work really really good. Eliminates that gassy smell if you were running w/o cats like i was. It will muffle the sound for about 15 and yes, it will reduce airflow but just a tiny bit and like a -10HP. As for sound , i run these cats now with the a corsa GT 500 dual exhaust and no resonators. Sound is very very aggressive and really good. Not obnoxious kind.

      ERA

      Year: 2014 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      June 11, 2018

      Very good converters

      Got these for my birthday and got them installed and these high flow cats bring out a nasty mean sound with my roush axle backs. They had to be custom fitted to my mustang other than that the only problem is my o2 sensor is causing my CEL to come on due to the change of the converters but that can be fixed with a tune so im still happy with how they turned out

      JamesB

      Year: 2012 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      April 21, 2018

      Pypes high flow cats sound great

      Added these pypes high flow cats with a custom cat back exhaust with borla Ataks sounds like a beast driving down the street a lot of head turns couldn’t be more happy with these also didn’t have any sensor lights turn on.. definitely recommend. Also feel more air flow and horsepower at higher rpms..

      Nick

      Year: 2013 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      April 10, 2018

      Great product

      Got these welding into my leathal performance off road h pipe for $175 and passed NJ emissions test.

      DeronH

      Year: 2013 Submodel: V6

      Helpful (6)

    • 4/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      March 13, 2018

      Great parts

      The only issue that was wrong with them is the fact that the muffler shop told me they didn’t fit perfectly and had to use some spare metal to make it fit other than that they’re great!

      SteveU

      Year: 2012 Submodel: V6

      Helpful (3)

    • 1/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      March 13, 2018

      High flow cats

      Very unhappy with these. Installed them and couldn't pass emisson here in the northeast. Buyer beware.

      Tyler

      Year: 2012 Submodel: GT

      Helpful (3)

    • 1/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      February 20, 2018

      Don’t waste your money

      I had a Cat related CEL and figure I’d replace the cats and do a slight upgrade wit these. But CEL came right back on, also there was no performance gains (which I didn’t expect) or any change in the exhaust note. I just replaced them with New Factory cats and the problem was fixed.

      Jayboogz

      Year: 2014 Submodel: GT

      Helpful (4)

    • 4/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      November 28, 2017

      Pretty good.

      Bolted on an tac welded. Looks good. Past inspection.

      mariom

      Year: 2011 Submodel: GT

      Helpful (4)

    • 1/5

      November 28, 2017

      not cal smog legal

      A M needs to get there fact correct about California smog rules. These are not smog legal in California

      DavidS

      Year: 2011 Submodel: GT500

      Helpful (4)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: 0-$100

      March 16, 2017

      Review

      These cats still sound like I have no cats on my car. It is a tiny bit quieter but still packs a punch. My only issue now is to fix my o2 sensors so my check engine light turns off

      ChristopherR

      Year: 2014 Submodel: GT

      Helpful (5)

    • 5/5

      Installation Time: Afternoon

      March 10, 2017

      Sounds Great and quality product

      I put these on my 2010 Shelby GT500 with the Stainless Works Off road H pipe setup and it nailed the sound I was looking for. These DO clamp on which is what I wanted.

      Overkill

      Year: 2010 Submodel: GT500

      Helpful (7)

    • 2/5

      Installation Time: Afternoon

      February 15, 2017

      Not too happy :(

      I had these cats installed on my 08 Stang, engine only has JTL CAI everything's pretty much stock. Added these cats and along with Offroad X and they just recently failed about 3 days ago CEL is on for Cats bellow efficiency threshold. Now I do have a tuner and I do have a catted and catless tune. I ran catted because it is catted and wanted everything to be emission friendly but still have that great sound. I am now trying to see if the car will still run properly with a catless tune, not too sure.. It'll turn off the rear 02 and probably not throw a code again. But This kinda sucks 284 dollars down the drain after 10k miles :( My car only has 60k miles on it.

      Cent

      Year: 2008 Submodel: GT

      Helpful (9)

    • 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 (4)

    • 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 (7)

    • 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 (4)

    • 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 (4)

    • 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.

      JoannaM

      Year: 2013 Submodel: GT

      Helpful (4)

    • 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 (4)

    • 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 (4)

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