Why would you do that man? The pulsar turbo flows more than the S15 turbo. And it can hold more boost because the wheels aren't made of inkonel like the S15 turbos that always break. The only down side to this turbo is the fact that it is a lil more laggy than most T28's, but it's nothing that bigger cams won't fix. You should keep this thing, it is a good turbo. I got the same turbo on my S14 SR20DET, and I like it alot.