Darkside Developments has raced this Audi TT (8S) with a 2.0 L TFSI (CHHC) inline-four. Since the company specializes in VW/Audi diesel and races another diesel Audi TT, they opted to convert this TT to diesel. In they engine bay they swapped a 2.0 L TDI CUAA inline-four upgraded with a GTB2260VK turbocharger, custom 3-inch exhaust, and CP3 Stage 3 fuel pump. The combo produces around 325 hp and 400 lb-ft (534 Nm) of torque. Darkside Development also installed a billet six-speed sequential transmission built by Kotouč Racing Gearboxes. Watch the build process and testing at the track in the videos below.
Source: Darkside Developments