B&B fusion cat back exhaust - ZR-1 Net Registry Forums

09-28-2018	#11
WARP TEN Join Date: Apr 2007 Location: Lake Bluff, IL Posts: 2,153	Re: B&B fusion cat back exhaust FYI, the drone we have all experienced in C4 ZR-1s is caused by two different frequencies that naturally occur at two different rpm points. The center resonator eliminates one and the rear mufflers eliminate the other. Don't know if drone is completely eliminated by other means if there is no center resonator; I would think not entirely.-Bob __________________ 2016 Long Beach Red Z06 #10281 "POPS Z" 1995 Polo Green #409 "WARP TEN"--Haibeck 350/510 package, 4.10s, Hurst, Stock Exhaust with QTP Cutouts --Sold but still running strong 1993 Quasar Blue #161 "HIL KING" --Sold but still running strong, now with more than 120,000 miles 1967 Marlboro Maroon/Saddle Corvette Coupe 300 hp/4-spd --Sold a long time ago ZR-1 Net Registry Founding Member #95 NCM Lifetime Member Favorite Quote--Attributed to Mickey Thompson: "Too Much Horsepower is Almost Enough"

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