Not Ranked
Anything that acts like your tongue when you whistle will do the same in exhaust.. The reason the system got louder was 2 things. Residue from the exhaust sticking to the packing, and making it a straight through pipe. Or the packing itself burning out.
__________________
20mph is not fast, unless you are doing it in a 3/2, 1000sq. ft. house on 10 ft. waves! 
|