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Old 03-24-2022, 05:44 PM   #2
Altered Carbon
Ghost Spawn
 
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Drives: Camaro
Join Date: Jan 2019
Location: East Coast
Posts: 537
Quad (4) tips from the factory is NPP. Dual (2) tips are not. NPP is called "Dual Performance/Mode Exhaust" though, not to be confused with dual (2) tips. Just ask (email or call) whoever to look on the sticker in the trunk (and/or maybe the glove compartment. I can't remember) to see if it has the NPP option on the RPO codes sticker. Looks like this:
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Last edited by Altered Carbon; 03-24-2022 at 06:10 PM.
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