Scope of delivery: - 5 forged pistons JE-Pistons incl. rings, bolts and clipsDescription: - Bore 81mm standard size - Pin 20mm pin - for connecting rod length 144mm - Forged pistons for turbo conversions - Compression ratio 8.0:1 (only in conjunction with a 1mm cylinder head gasket)suitable for: - Audi S2 2.2L 20v Turbo engine code ABY / 3B - Audi RS2 2.2L 20v Turbo engine code ADU - Audi 100 C4 2.2l 20v Turbo engine code AAN