Mahle upgrade 3,8l piston&cylinder 964/993 (11.8:1) 107mm, narrow rod

Bolt on torque and horsepower!_x000B__x000B_3.8L (102mm Bore) MAHLE conversion with forged pistons and cylinders _x000B_ up to 26KW (35PS) more Compression 11.8: 1 OEM Slip in, no modifications to the housing needed Deep Valve Pockets _x000B__x000B_Tech Tip: _x000B_964 Model (89-94) must modify the connecting rod (connecting rod eye like 993). Part number 000 300 207 . We strongly recommend Carrillo RSR 3.8 connecting rod FVD 103 975 03 . The Carrillo roads are already made for this conversion kit._x000B__x000B_Fits: C4S (96-98), C4 (95-98), C2S (96-98), C2 (94-98), CUP-RACE (90-93), Turbo-Look (91-94), RS (92-92), C4 (89-94), C2 (90-94)