AUDI A4 B8 1.8 TFSI 160hp CDHB 2007-2012 The 1.8 TFSI 160hp CDHB engine powers the AUDI A4 B8 from 2007 to 2012. It is the most widespread version of the 1.8-litre four-cylinder EA888 in this body. Only one part is listed on this engine code so far: the 1.8L 16v EA888 forged piston kit. Two configurations are available, WÖSSNER at the 82.5 mm standard bore with a 9.2:1 compression ratio, and JE PISTONS at 83 mm with a 9.6:1 ratio. The forged piston is the first part to change once the stock map is no longer enough and the torque asked for goes beyond what a cast piston will take. No other family is online to date for the CDHB.