The Kelford 269-EZ camshafts for the 2022+ Subaru WRX FA24 DIT drop-in camshafts are designed for near stock engines and work well with stock valve springs. Offering a good increase in power throughout the rpm range without sacrificing OEM response. Suitable for use with a stock turbo or 48-54mm turbo upgrade. You must retain stock rev limit if OEM springs are used. The cams can also work with the Kelford KVS87-DT valve spring and retainer set to go above the stock rev limit.