chuck baader
New member
My pistons, BMW 325e, do not have valve reliefs on the exhaust side. Due to a recent money shift, they now do. Changing pistons is not an option, but I would like to remove the sharp edges from the top of the piston. Viable options would be to scrape the offending metal, or light use of the die grinder to smooth things over. Opine, please. Thanks, Chuck