Quote:
Originally Posted by Hujan
Below 2k RPM you pretty much just hear camshaft gears. Between 2k and 4k it is all exhaust, especially if you have a bassy exhaust like the Akrapovic. Above 4k, it is induction noise and perhaps some exhaust depending on how loud/high pitched your exhaust is.
Did the Evolve tune eliminate the droning/bass at 2k and 3k RPM or are you referring to something else?
|
Tuned or not, below 2500 rpm it's the bassy exhaust drone although the term "drone" really isn't appropriate. 2500 to 4k rpm it is exhaust with a little whine when stock, but whine with a little exhaust when tuned. That range really is quieter with the tune.
The sound is a little quieter at 4k to 6k too but by then it's loud enough that I don't notice the whine as much. It's still there though. That is also greatly dependent on the throttle too. At WOT it's loud both ways although it does sound different tuned. Hard to qualify that any further though.