M4 slip on
does anyone have any experience with a M4 slip on exhaust?! i know its going to be louder than stock but is it deafening loud? what is the build quality like? fitment etc?
been looking at changing the stock system on my 650, and from links on youtube etc i think this is the exhaust i want to go for. like the way it looks and sounds. just want to get peoples opinions on them if there is any!
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