4G36 EVO 1-3/Galant VR4 Lower Lift 272° camshaft designed to work with OEM valve springs. Rough idle note with exhaust upgrade. Increase in mid-high rpm power with upgraded turbo. Upgraded turbo size range 48-58mm compressor inducer. For high mileage engines Kelford Cams recommend valve spring KVS63 which uses the OEM retainer._x000D_\n
