It might be my imagination, or I'm not riding as hard because I'm still at awe of the sound of the Vipers (love the decel rasp), but it seems I lost some power, but I cant pinpoint at what cause. I got rid of the pair valve, put on the viper II's and D&M spike at the same time.
So now I'm wondering if I need to richen everything up. I must have about 150-200 miles since the change and have no backfire or discoloring.
On a side note, I live right on the northern califonia coast, the air is quite humid. The pipes sound louder in the marine layer than a few miles inland.
Last edited by jazzinman; 06-21-2010 at 07:45 PM.
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