Quote:
Originally Posted by Thursday7
The bigger the piping the louder...
It's been proven that NA KAs prefer 3" piping, however 2.5 " makes no noticable difference and will be a bit quieter.
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3" on a KA is a terrible idea for what is essentially a stock car. All that noise (5-10 DB or more) for about .3 HP
OP, 2.5" piping, a big muffler and resonator and profit. Not sure why we have to spoon feed you this information. Please go do your own searching if you do not agree with my above recommendation......