Audi RS Q8 4.0T Valved Cat-Back Exhaust System

Intended fitment: Audi RSQ8, 4.0T. Model years are not specified in the current catalog.

Fitment confirmation is required before production. Please provide your model year, exact model, chassis code, engine, and VIN when available so Echo Exhaust can confirm compatibility and final configuration.

Browse all Audi exhaust systems.

Related fitment: Audi Q8 2.0T/3.0T.

Available material selections in the current catalog are 304 stainless steel and titanium.

This product is listed as valved, but the exact valve-control setup is not specified in the current catalog. Confirm the final setup before production.

Exhaust-tip style and finish are not specified in the current catalog. Confirm the final tip configuration before production.

Material, valve-control method, tip configuration, and custom-logo details should be confirmed with Echo Exhaust before production.

Professional installation is strongly recommended.

Before installation, have the installer verify connection points, clearances, valve-control routing, and the supplied configuration against the vehicle.

Final package contents depend on the selected material and configuration. Confirm the included components with Echo Exhaust before fulfillment.

Installation time, required modifications, sound level, emissions compliance, performance gains, and check-engine-light behavior are not specified in the current catalog.

This product is offered for pre-order. Estimated processing time is 5–15 business days, followed by an estimated 5–10 business days in transit.

View the Shipping Policy for current shipping terms.

View the Return & Refund Policy before ordering.

Fitment FAQ: Is this guaranteed to fit every Audi RSQ8 4.0T vehicle? No. Confirm model year, chassis, engine, and VIN when available before production.

Material FAQ: Which material should I choose? Both 304 stainless steel and titanium are listed; confirm the final selection based on your build requirements.

Valve FAQ: The system is listed as valved, but the control method is not specified. Confirm the final valve-control setup before production.

Installation FAQ: Professional installation is strongly recommended.