4 Inch Turbo Inlet Elbow (2.5TFSI EVO EA855)

The Unitronic 4 inch Turbo Inlet Elbow is engineered to provide a competitive edge for 2.5TFSI EVO (EA855) engines in the 8V.2 RS3 and 8S TTRS. Constructed from aircraft-grade cast aluminum, it features a fully integrated PCV recirculation artery and CNC-machined mounting flanges, inlet, and outlets. Unitronic engineers collaborated with aftermarket turbo manufacturers to include four modular CNC-machined billet aluminum compressor inlet adapter rings, allowing support for many mainstream turbo upgrade solutions. The elbow has been validated on a Superflow SF-1020 Flow Bench, achieving a 28% increase in flow over the OEM inlet (744 CFM vs. 581 CFM). It is important to note that this product is compatible with Left Hand Drive (LHD) models only. Unitronic also offers a separate 4" Turbo Inlet Elbow for the 8Y RS3 equipped with DXHA / DXHB engines (PN: UH060-INA for 8Y RS3 with DNWC / DNWD engines).