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–The forged piston is made of 4032 aluminum alloy,
–The forged connecting rod is made of 4340 aluminum alloy,
–ARP2000 bolts.
–S4 Piston per unit weight 296g±0.5g
–S4 Conrod per unit weight 550kg±0.5g
–Support 220HP/Per Cylinder
Fits:
S4 , RS4