BMW M2 (F87) Sport Cat Downpipe

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Why We Choose HJS Catalytic Converters: 

HJS German imported catalytic converters are made from some of the highest grade materials you can find in a catalytic converter. This yields high performance gains and longevity so it wont deteriorate over time like lower grade catalytic converters. These catalytic converters flow up to 93-95% of a straight pipe in most applications. The benefit is that you get the "straight pipe sound" while still being able to provide enough emissions scrubbing to prevent a check engine light.    

Inject new life into your BMW F87 M2 with a perfect high-flow catted downpipe! Genuine 200-cell HJS catalyst instantly adds power and sport sound without triggering a check engine light!

Fabspeed M2 Sport Cat Downpipe replaces the two restrictive factory catalytic converters with one high-flowing 200-cell HJS sport catalytic converter.


Our Muffler Bypass Exhaust and Sport Cat combo gains 16whp and 40 ft-lbs of torque power without triggering a check engine light! At 4250 RPM experience an outstanding 22whp and 33 ft-lbs of torque.


  • Fits all BMW F87 M2 models from 2016-2018

  • Designed with a 200-cell HJS catalytic converter core for maximum performance and reliability; same cat core used on our Ferrari 458 Italia applications!

  • Direct bolt-on replacement; no cutting or welding required

  • Does not trigger check engine light

  • Complies with most emissions regulations (NOTE: It the purchaser's responsibility to verify legality and compliance in their region.)

  • All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty

DISCLAIMER: This product removes the OEM catalytic converters from the vehicle, and as such, is strictly intended for closed track events and off-road use only. This product contains a High-Flow Sport Catalytic Converter solely intended for track and race cars as it is NOT California Air Resources Board Certified and not EPA certified. You are hereby informed and warned to check your local, state, and federals laws before buying and installing these or any aftermarket parts to be sure whether usage is in violation. All installation-risk and use-risk is borne by the end-user and installer of these parts.

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  • 5
    Excellent product

    Posted by Adrian on 7th Apr 2019

    Bought the 200cell sport car recently, it arrived pretty quick. As promised I got no cell after installation and 300 hard miles, smell is not a concern you wouldn’t even notice except you stick your face to the exhaust tips. But man I realised the improvement of throttle response immediately, I mean it’s not a huge boost ( for more power you’ll probably wanna go catless) but still it’s satisfying. Performance aside the sound improvement is rewarding(I’m having mpe), with valves open the sound is just magnificent. Thanks again fabspeed, the product worth every penny.

  • 5
    Great bump in power and sound.

    Posted by John M. on 28th Feb 2018

    I installed my sportcat this past weekend. I did it on ramps and took my time and in 3 hours it was done. IF you're a decent weekend mechanic, you may curse a few times but will get it in. If not or just don't want the bother, it's not very expensive for a shop to do it. I love this thing. I can feel a little more mid-push for sure. The sound has really picked up. A stock M2 sounds great. With this thing, you can hear the turbo a bit more and it really gives it more of a growl and scream. I've had my car for about 8 months and while I'd gotten a ton of compliments on it, never about the sound. In the past 2 days since the install, I had a guy track me down @ my desk at work to tell me he was behind me the day before and he had to tell me how sick the car sounded. On my way to work today, a couple of guys in a worked Mustang GT pulled up and told me how great it sounded. That NEVER happened before the SC install. I'm stock besides having a Dinan sport tuner, so this thing is the only exhaust change I've made. My buddy says I don't know how good it really sounds because I'm always in the car. It seems he's right. I did this for the few extra ponies, but the sound seems to be a huge plus on top of those. If you're on the fence, get off it. You won't be sorry.

  • 5
    All i can say is DAAAAMN!

    Posted by Anonymus on 6th Nov 2017

    Installed the DP saturday. All i can say is DAAAAMN! amazing quality, sound and power delivery.

  • 5

    Posted by M2GURU on 18th Oct 2017

    Perfect fitment, great welds, no CEL, great sound and performance! Would definitely recommend this cat!

  • 5
    thanks to the guys at Fabspeed they make an excellent quality product that rocks!!!

    Posted by Anonymus on 2nd Oct 2017

    Installed the Fabspeed 200 cell sport cat car has the Dinantronics Stage 1 installed (I am saving up for the Dinan big turbo + Intercooler ). The improvement in power with the Dinantronics alone was a mild boost in power in the mid range made more impressive by adding 94 Octane to the mix. The Fabspeed sport cat made for a holy shit bump in power AND sound!!! So thanks to the guys at Fabspeed they make an excellent quality product that rocks!!!...and second, I would suggest adding the sport cat as a stand alone prior to other changes to the exhaust system as it now has an even louder, deeper and IMHO more awesome exhaust note. For me, there is absolutely no need to mod the exhaust beyond I like the stealth mode.

  • 5
    Downpipe is LIT!!

    Posted by D CHOI on 22nd Aug 2017

    At first I was hesitant to get the downpipe because I didn't want to lose the stock sound feel. However the changes made the exhaust not as tight and now more loose and deep which is better and makes it sound more exotic. All the reviews here are true and on point. The pops and crackles are now easily manipulated as it's easy to make it growl when you want it to. You can feel the turbo breathing easier and spooling sooner and more efficiently. You feel the power and torque more and car feels like it's ready to go on tap at any moment. Very impressive and highly recommend. M2 being stock is already tons of fun and adding this is like icing on the cake.

  • 5
    The car sounds insane in track mode

    Posted by Steve on 11th May 2017

    I dyno'd 393bhp at the wheels, I'm running Fabspeed Sport Cat, ITG panel filter and MPE. The car sounds insane in track mode, not far off a V10 Huracan when nailing the M2 in long tunnels. Turbo is eager and ready to go all the time, car is really pulling hard at 3,000rpm and beyond. A little rev time when stationary at the lights in track mode is smile inducing - car has really transformed in to an animal. Having Wagner IC, ER charge pipes, PureTurbo's Inlet pipe and new DV+ fitted to end of week so hope to break the 400bhp zone pretty comfortably.

  • 5
    I would highly recommend

    Posted by Gavin on 3rd May 2017

    I have recently gone with this set up and it is exceptionally good . The sound over stock is much more aggressive and you can hear the turbo spool much more . The less restrictive cat is noticable immediately I would highly recommend

  • 5
    This is how the car should have come from BMW

    Posted by Chaslieb on 13th Apr 2017

    Just drove home from the installer and all I can say is that this is how the car should have come from BMW. The throttle response and spin up of the engine even before turbo is faster and sound is more powerful. The turbo spools quicker and the slingshot of the turbo kicking in is more aggressive. I understand that a tune is usually considered necessary to get the most out of such mods, but for right now I am enjoying this thoroughly. Highly recommend the sport cat as a mod to any M2 owner and believe the pure inlet is only making life easier for our turbo to breathe. Thanks to Fabspeed for making this product and Mike from Extreme for helping me get mine.

  • 5
    Thank you Bobby and everyone at Fabspeed!

    Posted by Ed on 30th Mar 2017

    Great experience from beginning to end!! The craftsmanship and quality of the sport cat is unreal. I can definitely feel the bump in torque, the car pulls noticeably harder and sounds amazing. Perfect compromise between loud at WOT and not too loud during regular load. Highly recommend it! Best mod for the money.

  • 5
    Fab Speed SportCat review

    Posted by wdlfbio on 28th Mar 2017

    I ordered mine towards the end of last year. Welds and overall impression out of the box was very positive. Shipping was right when promised. Packaging/bubble wrap was over-kill . I was anxious to get her installed, but life got in the way. I finally got it installed by the local muffler shop yesterday (Friday). 90 minutes or so for them. Dude said it wasn't too tough, but probably not something most folks would like to do on their backs. Car is a June 2016 build. I'm running Dinan Stage 2. Had it from 1,200ish miles until now (about 11,000 miles). No other mods. First impression was I couldn't tell anything. But, it was pouring rain, obviously super wet out, and I'm running crappy Blizzak LM60 winters all around. Took her out for some driving today and that impression changed. When routine driving, there was no discernible sound difference, which is great for me. The last thing I wanted was annoying most of the time. The performance exhaust on my previous 335 droned . This morning, I noticed a little extra sound when my right foot got pretty heavy. Then I realized I was still in comfort mode. Bumped her to sport and there was an obvious change. Put the window down and it's far more noticeable. I can't say my butt dyno notices much, but my ears do. I did notice what might be a smoother transition from 2nd gear to 3rd, but that could just be an artifact of this being novel. She growls nicely when I jump on her. Even the wife noticed (I hadn't told her about the mod). I start her up inside the garage and do not sense any smell at all. No CEL either. For me, it's a win. Nice and quiet for daily driving, then she gets serious when I ask her to be naughty. Just how I want her to be.

  • 5
    It creates amazing low/midrange punch

    Posted by Scott on 17th Feb 2017

    The DP is awesome! It creates amazing low/midrange punch. In addition, my entire exhaust setup it louder throughout the RPM range. I recommend it to anyone.