I've had my PV2 on for about 3 weeks now and it has toned down a little but still not to the point where I can tolerate it. When I had it installed I dropped a dual set of resonated tips in hopes that it would deal with the problem and quiet things down. I still get the "beer bottle" effect over 2500 but, by backing off or throttling up, it solves that pitch.
Just last weekend I had the chance to compare a PV2 installed with the factory pipe and, frankly, I didn't notice all that much difference in exterior sound. At constant highway speeds I love the deal--a low throaty rumble. I'm gonna give it 2 months (and a 2000 mile round trip to N.C. in 3 weeks) before I make the decision if it stays or goes.
Thought you folks might wanna see the tips though......
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Shemale dominatrix