Fabspeed McLaren 600 LT Cat Bypass Pipes


SKU: FS.MCL.600LT.CB Categories: , ,


Replace the four restrictive OEM factory Mclaren catalytic converters with straight-through pipes for maximum flow, performance, and super aggressive sports car sound.

ONLY Fabspeed Motorsports includes Military Specification “MILSPEC” thermal heat blankets consist of a 13mm thick ceramic fiber refractory mat interior rated to 1800 degrees. 321 Stainless steel mesh liner covering the ceramic insulation that 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. These MILSPEC thermal blankets are incredibly better at protecting your McLarens engine wiring and plastic parts from thermal degradation.


Our competitors solution to utilizing larger catalysts necessitates a harsh outlet angle, resulting in exhausts gasses exiting in a very inefficient manner. Fabspeed Motorsport USA CAD designed investment cast inlet and CAD outlet sections were Computer Designed for the smoothest and highest maximum possible flow both in and out for maximum exhaust velocity and power! ONLY Fabspeed Motorsport with over 25 years of Street and Race Competition experience goes to this EXTREME to maximize power and sports car sound!



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 600 LT vehicles. Coupe and Spider.
  • Maximizes power and throttle response while adding an aggressive exhaust note.

  • ZERO restriction after the turbo allows for the fastest-possible spooling and boost response.

  • Maximum size tubing and components 5″ 130mm INLET transitioning to 4.75″ 121mm to 3.0″ 76mm tubing for maximum exhaust velocity and power. DYNO verified performance.

  • Constructed from high-quality 321L interlocked stainless steel flex bellows and 16 gauge C.N.C. one piece mandrel-bent T304L stainless steel for optimum flow and maximum durability.

  • Saves 10 lbs 4.5KG from the vehicle versus bulky restrictive OEM factory catalytic converters

  • Fabspeed’s Catbypass Pipes replace the restrictive factory catalytic converters with much less restrictive straight-through pipes for maximum flow and performance.

  • Optional 02 spacers available to help reduce Check Engine Light occurrences by 50%. You can still get a P420/P430 codes with mini cats. 

  • An ECU tune is HIGHLY recommended to maximize power and Turn Off Check Engine Lights for Race Competition.

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

  • Fabspeed Motorsport USA was the World’s Vert 1st Company to design, engineer and DYNO develop systems for Each and Every Mclaren sports car.

  • Trust Fabspeed as we have over 25 years of experience with Exotic Cars and street and race track performance.

  • Innovation not Imitation.


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 is or contains a Racing Cat Bypass Pipe, which will give you check engine lights on OBD2 cars. We suggest pairing this product with racing software to prevent fault codes and check engine lights. Racing Cat Bypass Pipes are solely intended for track and race cars as they are 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 26 lbs
Dimensions 12 × 36 × 18 in
Add optional O2 Spacers?


HP (whp)

TQ (ft/lbs)

WT (lbs)


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