Quote:
Originally Posted by Finnegan
RPI is louder. In the Webster Tube (tunnel) with e for effort behind me all I could hear was the RPI. Remember, the dB scale is logarithmic. While the RPI is only a few dB higher in the tests (93 vs. 91 in standing test, 95 vs. 90 in WOT drive by) IRL it's a lot louder.
How important is drone to you? RPI has more drone than the Diablo, but both have a considerable amount of drone.
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Which exhausts are known for being drone free or at least very easy on the drone?