[PeteSS2018]

I can't really understand why people would not use the OEM. Price wise, they are all really cheap. Obviously GM didn't select the filter based on price, and its consumable anyway. My guess is they selected it on providing the best protection to the engine they could adopt, to minimise failures and warranty claims.

Not a single one of the filter companies has done the same R&D as GM did when developing this engine, and deciding on the filter choice. ** Now if you're highly modified, sure, go for it. You've potentially moved off the engineering of the OEM engine.