F30 / F31 / F34  340i xDrive

CAT Cams ensures every grind is optimized for power across the RPM range

G4X AtomX ECU

With avionics-quality hard chrome plating and a specially hardened tip

139 mm Rod

CP-Carrillo Connecting Rod Set, BMW S14 Bolt Type:CARR F30 / F31 / F34Carrillo connecting rods are highly regarded in both professional racing and street performance circles for good reason they manufacture premium products that winning racers around the globe depend on. The BMW S14 is a high performance four cylinder engine produced by BMW. It is one of the most iconic engines used in BMW's motorsport and performance oriented vehicles. The S14 engine was first introduced in 1986 and remained in production until 1991.