Description
Overview
The AWE Tuning Exhaust System Kit transforms the character of your McLaren, taking an already-exotic machine and sharpening its voice into a high-pitched, goosebump-provoking exotic note. Engineered specifically for the 3.8-liter, rear-wheel-drive McLaren in both Convertible and Coupe body styles, this Performance Edition cat-back exhaust system is built to smooth and elevate the soundtrack while respecting the precision engineering that makes these cars special. As AWE puts it, it’s not easy to make a McLaren better — but this performance exhaust does exactly that.
Built From Serious Materials
Every component is constructed from full 3-inch mandrel-bent T304L stainless steel, delivering smooth, unrestricted flow through the exhaust pipe and long-term durability against heat and corrosion. A key part of the signature tone comes from an engineered opening between the banks, purpose-built to tune the car exhaust note into something unmistakably exotic. Because flow and fitment are dialed in from the factory tubing diameter of 3 inches, this catback exhaust integrates cleanly with the rest of the car.
Surrounding the system is mandatory OE-quality, custom-engineered heat shielding: a quarter-inch thick, dual-layer waffled Inconel shield with internal 3000°F matting. This protects the McLaren’s body paneling from heat damage — a critical detail on a mid-engine exotic. The exhaust system also re-uses the factory tips, preserving the car’s original rear-end aesthetic for a genuinely OEM-plus look.
Key Highlights
- Cat-Back system in the Performance Edition, engineered for McLaren 3.8 RWD Convertible and Coupe
- Full 3-inch mandrel-bent T304L stainless steel construction
- Engineered opening between the banks for a high-pitched, exotic tone
- OE-quality quarter-inch dual-layer waffled Inconel heat shielding with 3000°F internal matting
- Re-uses the factory exhaust tips for a clean, OEM-appearance finish
- 50 State Legal, No CEL Guarantee, and No Tune Required
Fitment & Compliance
This exhaust system kit is designed for the McLaren 3.8 RWD platform in Convertible or Coupe configuration and is backed by AWE Tuning’s Fit Guarantee, so you can shop for exhaust upgrades with confidence. It carries a 50 State Legal voluntary label and a No CEL Guarantee, meaning no check-engine light headaches. Best of all, no tune is required and the system runs without valves — simply install and enjoy the sound.
Whether you’re comparing it against a Borla exhaust, Corsa exhaust, or Magnaflow exhaust build, the AWE Performance Exhaust stands apart as a purpose-engineered performance exhaust for one of the most exclusive cars on the road. If you’ve been searching for a serious exhaust system that respects both the acoustics and the engineering of your McLaren, this AWE cat-back delivers the exotic soundtrack without compromising factory looks or compliance.









