ACL H series has different part numbers for the SR20DE and DET I believe they are the same sizes but what I did notice is that the DET bearing has a few more oil holes in it and 270 degree oiling. Good engine bearings arent really gonna make you anymore power but what your paying for is the added protection from wear thanks to the coatings they use. OEM is great too FYI
hope this help -Andrew
These have given me great results in previous builds
