05-21-2018, 07:52 PM | #1 |
Drives: 2018 ZL1 Join Date: May 2018
Location: Denver, CO
Posts: 19
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Stock exhaust-why so quiet?
So I had a c7 Z06 before my ZL1, and you could always hear the exhaust no matter what. Full throttle, cruising, etc. In my Zl1 its super super quiet unless you are on the gas even in track mode. Is this just the stock exhaust being different? If I swap it out will I get the growl im looking for?
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05-21-2018, 08:33 PM | #2 |
Thank you Al Oppenheiser!
Drives: Red Hot A10 ZL1 Convertible Join Date: Jun 2017
Location: Sarasota, FL
Posts: 5,043
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Pull fuse 51 before spending one dime.
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05-21-2018, 08:37 PM | #3 |
Drives: 2018 ZL1 Join Date: Feb 2018
Location: CT
Posts: 79
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Still too quiet for my taste even with fuse pulled
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Past Rides 13 Porsche 911 4S 17 BMW M4 16 Shelby GT 350 07 Saleen Mustang 02 M3 Comp Pack 79 Corvette |
05-21-2018, 09:28 PM | #4 |
Drives: 2018 ZL1 Join Date: May 2018
Location: Denver, CO
Posts: 19
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what does fuse 51 do?
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05-21-2018, 09:41 PM | #5 |
1LE Convert
Drives: 2018 ZLE Join Date: Apr 2017
Location: Mountain View, CA
Posts: 369
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Does ZL1 come stock with NPP? If so, and you are in track mode, I'm surprised you find it quiet. SS 1LE in track mode hits about 97 dB.
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05-21-2018, 09:44 PM | #6 | |
Scientific negotiator
Drives: 2019 Grand Sport Join Date: Mar 2017
Location: Forsyth, GA
Posts: 873
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Quote:
A nice Borla xpipe would wake these suckers up! |
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05-21-2018, 10:46 PM | #7 |
Drives: Fast Join Date: Mar 2015
Location: Michigan
Posts: 3,696
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Corsa Xtreme for me. I have a C7 Z06 too and there definitely louder. But both cars rock Corsa Xtreme systems.
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05-21-2018, 11:46 PM | #8 |
Drives: Crush ZLE M6 | 2000 Corvette FRC Join Date: Jun 2010
Location: Cencal
Posts: 1,659
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Pulling the fuse made absolutely no difference on my ZL1 from track mode. Cruise, part throttle, WOT.....all identical with our without fuse pulled.
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05-21-2018, 11:53 PM | #9 |
Drives: 17 ZL1 MBM M6 Join Date: Mar 2017
Location: Oregon
Posts: 101
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I wonder how much sound the back seat and cabin damper the sound. I have been tempted to drop the back seat to find out. I only really hear the car with the windows and sunroof open.
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05-22-2018, 01:16 AM | #10 |
Drives: 2017 ZL1 Join Date: Jun 2012
Location: Graniteville,SC
Posts: 645
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Pulling fuse 51 will not satisfy someone who truly wants a louder exhaust. I installed a Kooks axleback and omg does it wake the car up. The dual mode function is lost but I never used it anyway. Here's a cold start video. I'm gonna get around to making a proper exhaust vid one of these days. It's the best sounding axleback I've heard on these cars.
https://youtu.be/LM8Rkb9na8k |
05-22-2018, 07:17 AM | #11 |
Drives: 2017 ZL1 A10 Summit White Join Date: Apr 2018
Location: Cumming, Georgia
Posts: 511
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05-22-2018, 07:59 AM | #12 |
Account Suspended
Drives: 2017 Camaro ZL1 A10 Join Date: May 2012
Location: NJ
Posts: 7,692
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Fuse pull was a thing on the 5th Gens. But it doesn't do anything significant if anything at all on the 6th Gens. Your best bet would be an aftermarket axle-back or cat-back. A cat-back will sound much better, much louder, and you'll get rid of that crushed pipe section. That's the way I would go if I were you.
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05-22-2018, 08:45 AM | #13 |
Drives: 2023 Black ZL1 Auto Join Date: Oct 2009
Location: FEMA Region 4
Posts: 2,936
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The C7 has an open hatch area behind the seats. The Camaro's trunk and rear seats isolate the passenger compartment from the exhaust compared to the Corvette.
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05-22-2018, 09:27 AM | #14 |
Drives: ZL1/335i Join Date: Apr 2014
Location: Santa Barbara
Posts: 870
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This has been mentioned a million times, but pulling the fuse really only gives you a little more sound at steady cruise and light throttle positions vs track mode. Definitely not a huge difference, but noticeable to me.
I put headers on my car, and along with the stock muffler, it’s perfect. The ZL1 “suitcase” muffler doesn’t produce any noticeable drone/resonance, which is maybe why it seems quieter than a Z06. I had a really similar setup on both of my C6s (headers into stock ZR1 mufflers), and there was quite a bit of drone. I don’t think WOT was any louder than my ZL1, but you could hear it more inside the car. If that makes sense. |
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