Downpipe Diameter 3.5 inch Cat Type 200 cell high-flow cat (100/300 cell available upon request) Material T304 Stainless Steel Fitment Fits stock or modified vehicles – no modifications required Compatible with Audi Q8 4M (2019–present) - Constructed from high-quality, heat-resistant stainless steel - High-flow 200-cell performance catalytic converter - Improves exhaust flow and reduces backpressure - Faster turbo spool and improved throttle response - Increased power and torque gains Engineered for the 2019-2024 Audi Q8 4M, this catted downpipe delivers improved exhaust flow and responsive performance gains. The integrated catalytic converter maintains emissions compliance while reducing backpressure, unlocking enhanced throttle response and a more aggressive exhaust note. Precision-fit construction ensures seamless integration with your Q8's factory system. Perfect for drivers seeking measurable performance without sacrificing street legality.