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Fabspeed Sport Catalytic Converters McLaren 600LT

SKU: FS.MCL.600LT.SC
Price
$6,046.95
Currently Backordered - You can still place your order and we'll ship your order as soon as the product is back in stock!

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Installation Services

Don’t worry about the hassle — let our expert team at Forza Motorworks handle the installation for you. Our professional installation ensures everything fits and operates exactly as intended, giving you clean, factory-quality results, proper wiring or mounting, and avoiding the risks of DIY mistakes. You’ll save time, avoid frustration, and get peace of mind knowing the job is done right the first time. Contact us to learn about our installation services and enjoy a seamless upgrade from day one.

FAQ

Shipping Information
For items that are in stock, purchases made after 9am EST will be usually be shipped out in the next 1-2 business days. Please inquire to confirm lead times if you have specific time constraints. Orders will be sent via signature required at our discretion unless otherwise requested.

International Shipping
Any and all customs duties, taxes, import fees, and/or tariffs assessed in connection with the purchase shall be the sole responsibility of the customer/end user.

Return Policy
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return. To be eligible for a return, your item must be in the same condition that you received it, unused and in its original packaging. All returns are subject to a restocking fee based on item and package condition. Buyer is responsible for paying for return shipping costs. If you need a return label, we will email you a return label and deduct cost from refund. Original shipping costs are not refundable. Special order items are not eligible for return.

Cancellation Policy
In order to cancel your order you must email within 24 hours of placing your order or before your order has shipped, whichever occurs first. Special order items are not eligible for cancelation.

Exchange Policy
We have a 30-day exchange policy, which means you have 30 days after receiving your item to request an exchange. To be eligible for an exchange, your item must be brand new in box. Buyer is responsible for paying all shipping costs to exchange product.

Product Description

 

 

Upgrade your 600LT’s exhaust system with Fabspeed’s Sport Catalytic Converters — high-flow, race-inspired catalysts that replace the restrictive factory cats and let your twin-turbo V8 exhale freely. Engineered using premium 200-cell HJS German catalysts housed in T304L stainless steel, this system reduces back-pressure and improves exhaust flow. The result: sharper throttle response, faster turbo spool, more midrange punch — and a deeper, more aggressive exhaust note worthy of a hypercar. With thermal-blanket protection built in and dyno-tuned flow optimization, this upgrade gives you high-performance gains while maintaining structural integrity under extreme heat.

Fitment Notes

  • Compatible with all 2019–2021 McLaren 600LT (Coupes / Spider). 

  • Direct replacement for the original catalytic converters — designed to mate to factory exhaust manifolds and downstream piping without major custom fabrication. 

  • Because this is a high-flow sport-cat system, it is optimized for performance and may not be emissions-compliant in all jurisdictions — check local laws before installation.

Included

  • Pair of high-flow sport catalytic converters (left + right banks) with HJS 200-cell cells, pre-assembled in T304L stainless housings

  • Heavy-duty thermal blankets (“military-spec” heat insulation) covering the catalysts — rated for extreme thermal loads. 

  • All necessary flanges and hardware required for bolt-on installation to existing exhaust components.

Product Specs

  • Catalyst type: HJS German 200-cell high-flow catalytic converters — designed for high flow while retaining catalytic function. 

  • Construction: Mandrel-bent T304L stainless steel housings for durability, heat resistance, and longevity. 

  • Heat protection: Included thermal blankets rated to high temperatures — ensures exhaust heat stays contained, preserving exhaust velocity and protecting nearby components. 

  • Flow improvement: Engineered to significantly reduce back-pressure compared with OEM cats — yielding quicker turbo spool and freer exhaust flow.

Product Features

  • High-Flow Catalysts with Real-World Performance: The HJS 200-cell units flow nearly as freely as a cat-bypass pipe while still performing catalytic function — delivering improved power delivery and throttle response without fully deleting emissions hardware or triggering a CEL.

  • Sharper Throttle Response & Faster Turbo Spool: With less restriction after the turbo, exhaust gases evacuate more efficiently — reducing turbo lag and improving overall engine responsiveness under load.

  • Aggressive, Hypercar-Worthy Exhaust Tone: Freer flow and a more open exhaust path liberate a deeper, richer exhaust note — giving your 600 LT a more dramatic, sporty sound character. 

  • Durable, Heat-Resistant Construction: T304L stainless housing and included heat blankets protect against thermal stress and corrosion, ensuring longevity even under track use or repeated high-temperature cycles.

  • Bolt-On Installation for OEM-Level Fitment: Designed to connect directly to factory exhaust manifolds and piping — no cutting or welding required when installed correctly. 

  • Track & Performance Build Friendly: Ideal for tuned builds, track-day use, or owners seeking maximum performance from their 600 LT — while still offering a viable upgrade path if cats need to be retained for inspection or registration in less restrictive regions.