I was wondering if any of you have done any comarisons on the 400 top end pipes from the major manufactures? I know they all make a huge difference over stock, but I am wondering about the 6500+rpm range. The three I am looking at are RcR, Aaen, and HPD. This pipe will go on a no holds barred 400 Scram. There are a lot of loyal customers, and these companies all have treated us good, but I need a side by side best of. Thanks in advance. [img]i/expressions/face-icon-small-happy.gif[/img]

 

Hpd is a good pipe but does not have the looks in my opinion. They also rattle alot....CPI is the best in my opinion. I have both. Acually i have an ftr pipe wich they copied cpi and ftr is out of business. I am also talking about the race top end pipe..If you are talking about the mid to top end then they all are about the same.