M4 Exhaust


Rabbitman109

Lumen Junkie
Elite Member
i have the m4 exhaust for my bike
it is a great exhaust, nice meaty note.. the exhaust clip on youtube of the fz6r with the m4 exhaust doesnt sound anywhere near as good as the real thing and its loud..

one thing i found, is that my bike (in australia) has an o2 sensor before the CAT converter... the m4 exhaust comes with an o2 sensor hole but the thread size is M18.. my bike o2 sensor is an M10 sized thread.. here is the problem.. but m4 also make an adapter which screws in to the o2 sensor hole that makes it fit an m12 or m10 sized thread.. i spoke to a fella at m4 about this problem and he sent me the o2 sensor adaptor at absolutely NO cost item or posting. very highly recommended. and a great quality exhaust perfect fit and fuckin awesome noise
 
Would this m4 exhaust be the best out there now? I'm looking for something that sounds much louder then stock. How does it sound at high speeds? I think it looks great considering I have the raven and it would fit right in. Hope to hear from you soon.
 
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