Resonator helps eliminate cabin drone. I'm running one of 72chevman's non-recommended setups (3" ZZP DP, res delete, summit fully welded muffs). Under 1500 RPMs, sounds great. Over 2500 RPMs, raspy but I like it. 1500-2500 RPMs, DRONE! Which makes it pretty annoying because thats the RPM range I'm in most off. Has definately promoted jack-rabbit starts to keep out of the resonant zone.
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'99 GTP, L36 bottom, XP cam, Headers, 3.29 gears, FWI, Powrtuner
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