This page brings together the eleven parts currently available for the Audi R8 V10 5.2 FSI 40V 570hp, CTPB engine. The first choice to make is the compression ratio of the forged piston, all of them…This page brings together the eleven parts currently available for the Audi R8 V10 5.2 FSI 40V 570hp, CTPB engine. The first choice to make is the compression ratio of the forged piston, all of them in 84.5mm: 10:1 from MANLEY and DIAMOND, 10.5:1 from JE PISTONS and 12.5:1 from DIAMOND. Then come the MANLEY forged connecting rods, the KING RACING big end and main bearings, and the complete cylinder head, SUPERTECH stainless steel and sodium filled Inconel valves, springs, guides, stem seals and 6mm collets for the 40 valves. This range is common to the 525 to 570hp versions of the V10 5.2 FSI.