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05-19-2019, 06:08 PM
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#141 |
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Account Suspended
Drives: '14 Jetta 1.8, '19 1SS Join Date: Mar 2010
Location: San Diego
Posts: 886
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Precisely why I didn’t get NPP and put a Borla axle back on.
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05-20-2019, 01:46 PM
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#142 |
         
Drives: 2016 Camaro 1LT Join Date: Jan 2016
Location: California
Posts: 3,491
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If you still have the rattle issue and it doesn't seem related to the npp valve, it could be the resonator that comes before the muffler. It is not uncommon for welds around the drain hole or inside to crack and create a horrendous metal tin can sound.
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06-10-2019, 06:46 PM
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#143 |
 Drives: Chevrolet 1SS 1LE Join Date: May 2019
Location: LA
Posts: 7
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Has anyone seen this new alleged NPP fix? Anyone tried it?
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05-23-2020, 02:46 PM
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#144 |
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LT1 1LE
Drives: 2018 2SS 1LE HPB Join Date: Apr 2018
Location: BC
Posts: 103
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My 2018 exhaust rattles under certain conditions: part throttle, between 2,500 rpm and 3,500 rpm in 2nd and 3rd gear only.
I usually keep my car in Tour mode. I'll go see a dealer and try to get it fixed. |
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05-24-2020, 04:52 AM
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#145 |
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Makis
Drives: 2020 Red Hot ZL1 A10 Join Date: Apr 2019
Location: London - UK
Posts: 806
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Mine rattles even with fuse 51 pulled.
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06-06-2020, 02:42 PM
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#146 |
 
Drives: 2016 2SS Camaro Join Date: Mar 2010
Location: Miami, FL
Posts: 246
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Between this issue, the fogging windshield, the starter overheating. I'm pretty tired of this car
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