4.5” of pure carbon power. Presenting the S-FLO Carbon Intake Suite for the Audi 8V RS3 and Mk3 TT RS:S-FLO Open Carbon Intake System: Combine the S-FLO Carbon Inlet Tube with the Shortie Carbon Intake, and you have the impressive (and very vocal) S-FLO Open Carbon Intake System. A full 4.5” diameter configuration from S-FLO Filter to turbo inlet coupler, this version delivers an increase of 7 hp and 3 lb-ft of torque at the wheels with an ample dose of turbo induction and diverter valve sounds with each rip of boost. DV Adapter Kit: The DV Adapter Kit is a an adapter machined in-house out of billet 6061 aluminum for 2019+ models. The kit includes the DV adapter, two oil resistant o-rings, two worm-drive clamps, and 8.75" of high temp silicone hose. Important Notes: 2019+ models require the additional DV Adapter KitThe AWE 4.5" S-FLO Carbon Intake Suite is for racing use only