04-16-2019, 03:31 PM | #1 |
Drives: Black 2012 ZL1 M6 Join Date: May 2018
Location: Western IL
Posts: 70
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Muffler delete?
Anyone that has done this, how much louder is it than the stock mufflers with the fuse pull? About how much do the stock mufflers weigh?
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04-17-2019, 09:06 AM | #2 |
Drives: 2013 ZL1 Join Date: Dec 2015
Location: Gulfport, MS
Posts: 250
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Muffler delete
I once deleted my Muffler’s and the sound was very nice. When I went to headers with cat delete it was essentially straight pipe and to loud so I put the mufflers back, and that was good and then I pulled the fuse and it’s louder but I’m good with it. I had put on hooker blackheart mufflers which deepened the sound but they drone until the transmission shifts so I took them off, although they would probably be fine if you had cats?
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04-17-2019, 10:54 AM | #3 |
Drives: '17 Corvette Grand Sport M7 Join Date: May 2012
Location: Pennsylvania
Posts: 3,748
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The choke-point is the cats, not the mufflers. Get some high-flow cats or long tube headers. You DO NOT want to cut the NPP exhaust off of that car and weld in straight pipes. My buddy has a '13 ZL1 and he installed long tubes last fall. His car will rattle your teeth loose!
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**SOLD**2011 TRIPLE BLACK SS CONVERTIBLE--6 SPEED MANUAL, MANY MODS, 455 RWHP/435 RWTQ DAD'S RIDE: 2012 ZL1 #1866--BLACK, 6 SPEED MANUAL, EXPOSED CF HOOD, POLISHED WHEELS, SUNROOF, ROTO-FAB INTAKE "Silly Americans, taking from the rich and giving to the poor only works in fairy tales. Success is earned here!". |
04-20-2019, 03:08 PM | #4 |
Drives: Black camaro 2ss 45th Join Date: Jan 2018
Location: Central NJ
Posts: 359
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Electric cut outs right before the mufflers. Problem solved.
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04-22-2019, 04:28 PM | #5 |
Drives: 2013 ZL1 M6 Join Date: Sep 2016
Location: CA Bay Area
Posts: 248
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I am running cutout right after the headers. I don't think it gets any louder.
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Fast 850cc Injectors, ATI Balancer, 8.66 Lower Pulley, 2.55 Upper Pulley, Lingenfelter CAI, Kooks LT with cat delete pipes, Noweeds Exhaust Cutouts (extremely loud under full throttle), BTR Stage 3 Cam, BTR Platinum 660 Valve Spring Kit, TR7ix Iridium Spark Plugs, Lingenfelter Solid Isolator, 160 Degree Thermostat, Larger SC Coolant Reservoir with Hose Relocation Kit, BMR 1.25" Lowering Springs, MGW Short Throw Shifter, Racing Brake 2 piece rotors front and rear, Starkweather Performance Custom Dyno Tune on 91 Octane.
691.38 RWHP 630.35 RWTQ |
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