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Fabspeed McLaren 600 LT Cat Bypass Pipes

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Fabspeed McLaren 600 LT Cat Bypass Pipes


Purchase Disclaimer: Fabspeed Motorsport does not condone the use of emission defeat devices for any vehicles used on public streets or roadways. Fabspeed Motorsport will not tamper, remove, disable, or bypass emissions equipment on a motor vehicle in accordance with 40 CFR Section 86.1854.12(a)(3), Clean Air Act 40 CFR 1068.101(b). This includes software, known as tunes, that reprogram a motor vehicles electronic control module to alter engine performance and enable the removal of filters, catalysts, and other critical emissions controls.

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.

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.