Milltek C8 Corvette Catalytic Converters

High-Performance Large-Bore Cats

Our Large-Bore High Flow Sport Cats are designed to enhance both the performance and sound of your vehicle. With a larger diameter compared to stock OEM components, these cats provide increased exhaust flow, allowing gases to exit the engine more efficiently, achieving substantial power gains without the restrictions typically caused by a factory catalytic converter. Unleash more of that beautiful F1 sound from your Z06 with a Milltek exhaust.

• HJS 200 CPSI German Euro 6 HQ catalytic core 
• Features Motorsports grade, F1 style heat wrap
• Dyno gains up to 26 WHP & 28 lb ft TQ 
• Nearly 10 pound weight reduction
• Utilizes factory GM gaskets
• No ECU tune required
• These cats will not work with the JLT Cold air intake system - no plans to offer a version that does 
• All sales are final - not eligible for return 

Founded in 1983, Milltek has grown to become one of the leading manufacturers of performance exhaust systems. With headquarters in the UK and an additional development and testing center at Germany’s iconic Nurburgring race circuit, Milltek are at the forefront of the automotive performance world. In 2022 Milltek Sport announced a new $10.5 million USA expansion. With this new expansion, Milltek entered the next phase of growth in the USA fully committed to expanding it’s Domestic performance exhaust range.