I LOVED my SSQ. I don't know what you guys are talking about with the sounds and surging. Maybe you don't have it adjusted correctly. :dunno:

I'll have to find my +/- 300 whp dyno run where you can hear it blowoff. At 12psi, it sounded sweet. At 23 psi, it was sick! :irock:

I highly recommend the HKS SSQ. :yes: