speedfire159
RCTalk Member
I was looking for a aftermarket tuned pipe for my car and notice different outlet sizes. What will give the most power and best sound? Or is it like a automobile smaller more hp, bigger better sound? I have a .18 motor and want it to still be able to breathe right, but i saw sizes from .20" to .35" and what are the differences, and what would be best for my size engine?