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  • Replaces the four restrictive factory catalytic converters with two ultra high-performance HJS German-imported Sport Cats for improved performance and hypercar sound
  • Constructed from TIG-welded high-quality T304L stainless steel with premium 321 stainless steel flex-sections and smooth cast sections for improved fit and ease-of-installation. Fabspeed is dedicated to offering the best performing downpipes for McLarens and has invested in bespoke components to increase power.
  • Visual comparison between the factory catalytic converters and our high performance Sport Catalytic Converters.
  • Fabspeed's Sport Catalytic Converters for the McLaren 675LT provides maximum gains of over 24 whp and 29 ft-lbs of torque at 4350 RPM. Reward yourself with peak power gains of 17whp and 20 ft-lbs of torque, an increase in turbo noise, and an intoxicating cabin presence.
  • Fabspeed is dedicated to McLaren performance and through our two development vehicles (MP4-12C and 570S) we've crafted the highest performance Sport Cat Downpipe possible. We now use the highest quality 200 cell HD cat core from HJS Racing in Germany. We’ve incorporated 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.
  • Every set of Sport Catalytic Converters is hand made in house at Fabspeed Motorsport.
  • Keeping the heat in the exhaust maintains the velocity of exhaust gasses, allowing the turbos to spool faster while ensuring maximum power is extracted through increased efficiency. Our included heat blankets consist of a 13mm thick ceramic fiber refractory mat interior rated to 1800 degrees. Stainless steel mesh over 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.

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McLaren 675LT Sport Catalytic Converters

SKU:
FS.MCL.675LT.SC
$4,595.00

Other Details

HP (whp):
+24

TQ (ft/lbs):
+29

WT (lbs):
-1


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  1. What factory? 5 Star Review

    Posted by on 24th Mar 2017

    Factory equipment is GARBAGE compared to these! These free up so much more flow in the exhaust system. Sounds amazing even with the factory muffler. Definitely louder, but nothing over-bearing. Can't wait to get her back on the dyno and see what's what!

    Also love that there is no CEL. The heat blankets are kind of ugly but they serve a purpose so I can live with them. Just a shame to cover up the beautiful piping and welds!



FABSPEED MOTORSPORT | McLaren 675LT Sport Catalytic Converters + ECU Tune (02:27)
Outfit your 675LT with our Sport Catalytic Converters and ECU Flash for peak power gains of 52whp and 38 ft-lbs of torque. Tap into an extra 31whp and 36 ft-lbs of torque at 4437 RPM and 56 whp and 45 ft-lbs of torque at 6450 RPM! The difference in driving sensation is night and day! http://www.fabspeed.com/675lt/

Product Description

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 HD 200-CELL CATALYSTS:

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.

 

CAST INLETS AND OUTLETS:

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.

 

HEAT BLANKETS:

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!

                                                    

FEATURES:

  • Fits all McLaren 675LT vehicles
  • 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 Fabspeed-proprietary HJS 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.

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