best 300ex exhaust
#4
#7
Thats the best one I can think off. Either that one, or the HMF slip on with Whitebrothers Header, or just an HMF slipon.
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#10
yes, you would need to rejet. And it would also be smart to add an aftermarket airfilter. Preferebly a UNI or K&N. Alot of people would say K&N but a UNI would actually be better because it lets in alot less dirt than the K&N. But you get more power from the K&N. But yes, if you got a slip-on you would need to rejet. but i highly reccomend getting the head pipe also. The stock 300 header is puny.


