CTS Turbo 3″ Stainless Steel Highflow Cats BMW S55 F80 F82 F87 M3/M4/M2 Competition

The CTS Turbo 3″ Stainless Steel High-Flow Cats for BMW S55 engines—found in the F80 M3, F82 M4, and F87 M2 Competition—are a must-have performance upgrade for enthusiasts looking to unlock the full potential of their turbocharged M car. Engineered to replace the restrictive factory catalytic converters, these high-flow cats feature a full 3-inch mandrel-bent T304 stainless steel construction and motorsport-grade catalytic cores that significantly improve exhaust flow, reduce backpressure, and enhance turbocharger efficiency.

Designed specifically for the high-performance BMW S55 platform, this upgrade delivers noticeable gains in horsepower, torque, and throttle response while enhancing the exhaust note with a deeper, more aggressive tone. The CTS Turbo high-flow cats are also compatible with most aftermarket and OEM exhaust systems, ensuring a hassle-free installation with precise fitment. When paired with appropriate ECU tuning, they help reduce the chance of check engine lights while maximizing performance.

Whether you're building a full bolt-on setup or aiming for a track-ready S55-powered M car, the CTS Turbo 3″ High-Flow Cats are one of the best exhaust modifications available. They strike the perfect balance between performance and daily drivability, making them ideal for BMW M3, M4, and M2 Competition owners seeking power, sound, and reliability. Upgrade your exhaust system and experience the performance gains your BMW was meant to deliver.