Boyesen Rad Valve/FMF SST Pipe
#1
I'm sure this has been ask b4 but my mechanic swears that the boyesen rad valve is great for my 86 250r. Anyone got any advice? He also had a FMF SST pipe on his and loves it. I've already got a FATTY pipe. Gonna let him do some porting/polishing also. With piston size its a 265 now. Thanks in advance!
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