If you buy that kit, you will not have any major issues, Joe, is on point on his systems, and does great work. I know of a few guys that use that system, and why would you not get that dowpipe? That is a complete Y system that lets you keep your dual exhaust, I have bought many of items from Joe at TPS, and he is very freindly, very hard working, and will work with you till you are happy.