CTS Turbo EVO4 AWD High-Flow CAT MK8 VW Golf R/8Y Audi S3

The CTS Turbo EVO4 AWD High-Flow CAT is purpose-built for the all-wheel-drive platform shared by the MK8 VW Golf R and 8Y Audi S3. This high-flow catalytic converter addresses the restrictive nature of the factory exhaust system, allowing freer gas flow through a more efficient substrate design. Built to withstand elevated exhaust temperatures and engineered for the EVO4 turbocharged EA888 engine, this replacement cat supports modified vehicles seeking improved throttle response and reduced backpressure. Designed for direct fitment to the AWD exhaust configuration without cutting or permanent modifications to the OEM exhaust system.