Fabspeed McLaren 650S Sport Catalytic Converters


SKU: FS.MCL.650S.SC Categories: , ,


Fabspeed Motorsport USA was the world’s very first company to design, engineer, and dyno develop McLaren systems. Fabspeed Motorsport is the company with the most experience with these cars.

Replaces the four restrictive factory OEM catalytic converters with two ultra high-performance HJS German Racing 200-cell sport cats for maximum performance and sound, and no check engine light guaranteed.

Utilizing our two development McLarens, MP4-12C and 570S, we’ve experimented with many designs and were able (after much testing and engineering) to craft the highest quality catted downpipes on the market. We are utilizing bullet proof, high flow 200-cell HJS HD catalysts and incorporate a cast outlet pipe which allows for the smoothest possible flow, the most possible power especially when paired with a tune, and ultimately a superior solution. It’s a major change, but we’ve invested a lot of time and resources into developing the best possible McLaren downpipes and we’re now proud to offer you this latest and greatest solution. McLaren is constantly updating their vehicles and offering even better performance, and we’re dedicated to doing the same. Fabspeed Motorsport is the world’s primary authority for aftermarket McLaren performance.



HJS Germany manufactures the highest quality catalysts in the world. Fabspeed has incorporated 200 cell-HJS HD catalysts into our latest design to maximize horsepower. Our complete redesign incorporates these high flowing catalysts in conjunction with heat blankets and makes incredible power gains especially when paired with a complete Fabspeed exhaust and ECU Tune package.


Our competitors solution to utilizing larger catalysts necessitates a harsh outlet angle, resulting in exhausts gasses exiting in an inefficient manner. Fabspeed invested in cast inlets and outlets for the smoothest possible flow both in and out for maximum exhaust velocity and power.



Included only at Fabspeed Motorsport. Protect your engine components from intense heat with thermal blankets. Keeping heat in the exhaust maintains the maximum velocity of exhaust gasses, allowing the turbos to spool faster while ensuring maximum power is extracted through increased thermodynamic efficiency and flow. Fabspeed thermal blankets are rated to 1800 degrees. T321L Stainless steel mesh over a 321L stainless steel inner liner covering ceramic insulation makes direct contact with the downpipes. The basalt fabric exterior covers sewn with stainless steel mesh covering all edges and high quality stainless steel spring fasteners ensure longevity. Fabspeed thermal blankets are exclusively manufactured by a military defense contractor!



  • Fits all McLaren 650S vehicles (2014+)

  • System comes with thermal military spec blankets included

  • Improves power and throttle response while adding true hypercar-worthy exhaust sound

  • Less restriction after the turbo allows for faster spooling and boost response

  • Constructed with HJS HD German-imported high-flowing catalytic converters using T304L stainless steel

  • Optimized for maximum performance with NO check engine light, guaranteed

  • 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.

Additional information

Weight 36 lbs
Dimensions 12 × 36 × 18 in
HP (whp)

TQ (ft/lbs)

WT (lbs)

2 reviews for Fabspeed McLaren 650S Sport Catalytic Converters

  1. John

    Been searching for an exhaust for my 650s for a little while. The main factors for me were sound and then came performance. I felt the standard exhaust was just too quiet and actually made the car very boring to drive. I decided that I would go with Fabspeed. They make great exhausts which I’ve used on Lambo Gallardo, 911 Turbo and headers on my 458.

    I bought their Sports Cats and X Pipe. Travis from Fabspeed is a great guy to deal with. He’s very knowledgeable and takes his time to answer any questions you might have.

    The shop that installed my exhaust was Amazing Auto Factory in the Bay Area, Ca. They’ve done many McLaren’s before.

    Overall I am extremely happy with the sound of this exhaust. It’s much louder than the factory exhaust and with the sports cats it has a very nice turbo whistle to it. All the noise but none of the smell from test pipes. I have a spider and with the top down it sounds incredible. Its extremely loud and probably not for everyone. If I roll all the windows up and top up, it actually sounds almost stock inside the cabin which is nice for long drives. If I roll the rear window down with top up, its extremely loud and has a drone which I love.

  2. Anonymus

    Comment from the McLaren Service Guy: “we are fascinated from the incredible sound and performance which these down pipes are right now creating”

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