Audi 2013 A6 (4G C7) 3.0 TDI Bi-Turbo 313 BHP intercooler (From Engine Code CGQB): Fitted on A6 2011-2014, A7 Sportback 2012-2014. Audi 4G0 145 805 J. Core Dimensions: 690 x 175 x 75mm -> 9,06l. Good for high 300 bhp. Driver side hose: 4G0145738AB. Passenger side hose: 4G0145709AB. Dyno-ChiptuningFiles.com is leading in the development of Audi A6 3.0 TDI Bi-Turbo 320hp tuning files. All Audi tuning files are custom made and thoroughly tested on a 4x4 state of the art Dynometer VBEE.