past January. I used a sound meter, taken 19 inches from the exhaust. My old Z on full 3” TT with SpecialtyZ single tips was 89 db at idle and 99 at 3k rpms. My TT with 3” downpipes and 3 to 2.5 SpecialtyZ quad measured 77 db at idle and 88 at 3k.
SRC="http://i35.photobucket.com/albums/d157/bbugarin2/Zwit h Veilside2-1.jpg"> |