Subaru WRX Racing Camshafts. 282° High Lift EJ20 Engine Non AVCS Cams. Best suited to wide open throttle and high rpm power motorsport applications. Suits well built competition EJ20 engines running 64-72mm turbo and larger intake manifold. Great with E85 fuel. Requires cylinder head modification to fit high lift cam lobes. Must use shimless buckets. Kelford Cams recommend valve spring upgrade KVS1847-BT.