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Old 04-07-2024   #10
XfireZ51
 
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,685
Default Re: Solution for B&B Exhaust Drone?

What Karl is describing is what was done w the C6Z. In order to reduce weight, Corvette went w an Xpipe rather than a resonator, and to duplicate the effect of the resonator, they adopted a muffler valve, the NPP. The system he described is what I now have on my ZR using a manual electrical switch to acivate the valves.
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