I found the pipe i'm really liking. I put a nova 9853SS chamber on the dynamite 086 manifold and does that thing fly. I have found in testing with another engine that the 053 dyn doesn't perform nearly as well as the 9853SS. If it was any stronger on the bottom the buggy would be undriveable and the topend is outta sight. Just doesn't stop pulling. Can't wait for the .23 truggy engine to get here.