AWE Tuning Audi RS3 / TT RS 4.5in S-FLO 4in Turbo Inlet Coupler Wheel and Tire Accessories>Wheel Spacers & Adapters increasing the air pressure in

increasing the air pressure in the combustion chamber

This will give your car an even more solid connection at the expense of some vibration transmitted through the chassis

This cover comes with all necessary hardware for easy installation

aluminum collars

AEM offers a wide range of Cold Air Intake System that can be installed into your vehicle as well

AWE Tuning Audi RS3 / TT RS 4.5in S-FLO 4in Turbo Inlet Coupler Wheel and Tire Accessories>Wheel Spacers & Adapters increasing the air pressure inS FLO 4 Coupler: The S FLO 4 Coupler transitions from 4. 5 to 4 to accommodate aftermarket turbo inlet pipes that are 4 in diameter.