09-18-2019, 09:47 AM | #1 |
Drives: 2019 2ss 1LE Join Date: Mar 2019
Location: Kennett square, PA
Posts: 307
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Stock exhaust pinched down
Had my 2019 SS on the lift for the first time and noticed on both exhaust pipes near the back the pipes are pinched in almost halfway? Has anyone else noticed this? Can anyone tell me why they would do that? Seems restrictive but I'm thinking that might be where all the pops come from but I really have no idea.
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09-18-2019, 09:51 AM | #2 |
Drives: 2021 Tesla Model 3 LR Join Date: May 2016
Location: USA
Posts: 964
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Normal. It's there to make room for the extra bracing for convertibles and it's cheaper to have one version of the exhaust vs multiple versions. Tests have shown there is no loss of power( stock at least) with that crimped exhaust.
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09-18-2019, 10:05 AM | #3 |
Drives: 2018 1SS 1LE Join Date: Apr 2018
Location: Mpls, MN
Posts: 428
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Mishimoto tested it and found they made no difference in power
https://www.mishimoto.com/engineerin...he-crimp-myth/
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2018 1SS 1LE (sold) |
09-18-2019, 10:17 AM | #4 |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 6,800
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its pinched down but wider through that section so it doesn't really cause a restriction...just looks like shit when you first see it. lol
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2016 NFG 1SS A8
Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA |
09-18-2019, 01:16 PM | #5 | |
Banned
Drives: Camaro Join Date: Apr 2017
Location: US
Posts: 422
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Quote:
Unpinching makes absolutely no difference in performance its been tested so many times already. |
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09-18-2019, 05:03 PM | #6 |
Drives: 2019 2ss 1LE Join Date: Mar 2019
Location: Kennett square, PA
Posts: 307
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Yea I was just curious. Next time I'll be sure to search the database for any possible threads that relate so I don't piss off the guys that live on here.
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09-19-2019, 03:42 PM | #7 | |
Drives: 2017 1SS auto vert Nightfall Gray Join Date: Jan 2017
Location: Central Coast, CA
Posts: 666
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Quote:
You don't need to add Camaro (duh), but year, model, man or auto, and vert if you have one. And I'm not sure why members don't add their city and state. |
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09-19-2019, 04:02 PM | #8 |
Sure, why not?
Drives: 2016 Camaro 2SS, Jeep JKU Rubicon Join Date: Mar 2015
Location: SE Mass
Posts: 1,538
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I've only been on the forum since 2015, but this is the first time I have noticed a thread on this topic.
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09-19-2019, 05:07 PM | #9 |
Drives: 2016 Camaro 1LT Join Date: Jan 2016
Location: California
Posts: 3,491
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well, to be fair, it was discussed a bunch when it was new news back in 2016.
crushed exhaust pipes over near the cats are not going to impact performance at all. The exhaust is too hot to matter. Many tests have been done (some very scientifically) on creating exhaust restrictions via bashing in headers and the exhaust pipes near them with sometimes better effect than the non-crushed originals, but never really statistically changed. Literally 1hp ...maybe 1/3 of 1% up or down. It's about controlling the sound profile or clearance more than anything else. as others have stated. |
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