I bought this thing because it was reccomended by a good source. This thing is awful. I have yet to run it and never will its getting returned. First, the header is all dinged up. Secound i went through three exhaust gaskets because the exhaust opening on the pipe was too large, when i finally got one on the header would not fit over the gasket. Last the stinger appears to be an illegal size. So my truggy track date just got pushed back a week :argue: . I am going to order a HPI Ribbed pipe or JP1.