04-29-2021, 03:19 PM | #1 |
Drives: 2019 2SS 1LE Join Date: Feb 2021
Location: MI
Posts: 76
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Question about OE exhaust
I've been looking at aftermarket exhaust. I have the npp exhaust and would like to keep the "quiet" portion of it for my neighbors at 6am when I leave for work (if I ever go back to the office). I know several companies make great axle back stuff....but $2k for an exhaust system with the npp valves is kind of pointless when I already have the valves. That's over $700 right there that's not technically needed. Has anyone ever run a straight pipe for their loud side and kept the muffled factory side for their quiet side? This has probably been asked a billion times already....
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04-29-2021, 03:33 PM | #2 |
Drives: 2018 1SS 1LE Join Date: Apr 2018
Location: Mpls, MN
Posts: 428
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The 'loud side' is basically a straight pipe already.
Best way to improve sound without spending a ton is to remove the secondary cats.
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2018 1SS 1LE (sold) |
04-29-2021, 03:40 PM | #3 |
Drives: 2020 LT1 M6 Join Date: Jan 2016
Location: South, the DEEP south
Posts: 1,114
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^ THIS, slightly louder, slightly deeper tone, retains stealth function, at a reasonable cost. Just make sure the welds don't leak where the replacement pipes go, or you will get a check engine light.
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