Quote:
Originally Posted by emFiveLA
2 questions....
On the topic of drone, isn't there some drone with all of these aftermarket exhausts below 2,000 rpms? I've been hearing a lot of resonance, vibration, etc. at low rpms on all these exhausts. I'm a bit perplexed when some say there is no drone etc on some systems when my experience is just the opposite. The m5 just seems to have a tendency to have it below 2k rpms.
Secondly, do the valves on the eisenmann sport help on that cold start? Or is it only a slight insignificant difference than those systems (particularly the rpi gts) that does not have these valves.
Thanks
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Rob should comment on this, but I understand the Sport should be quieter than the Race on start, however, make no mistake - the Sport will grab attention during the start - it is a lot louder than OEM.
Drone usually refers to constant noise at cruising rpms. These exhausts don't have that. They have a few seconds drone when downshifting at low rpms.