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View Full Version : Big Gun, Yoshimura, White Bros R4????



Drtridr18
08-14-2001, 08:39 PM
What is the best between these, i noticed a lot of people don't use these, that's why i want one of them. I figure any good pipe and jetting will kill a stocker. Whats the diff. between the R4 and the E-series that everyone talks about, i personally think the R4 looks better, but thats looks. Thanks a lot!

08-15-2001, 07:04 PM
if looks is what your after im pretty sure u can buy an e series and order one of those r4 end caps from dennis kirk. any good after market exhaust is way better than stock. big gun is a bottom end pipe and people claim its the best for getting holeshots but i would prefer a midrange-top end pipe because in my opinion the 400ex already has plenty of bottom end just my opinion