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Old 05-13-2022, 10:24 PM   #1
SOCAL.M6.ZLE
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Drives: 2022 M6 ZL1 1LE
Join Date: Jan 2022
Location: San Diego CA
Posts: 2,189
ADDING NPP BACK IN ???

So… In search for more volume… I went ARH + HFC + AWE Touring…
Amazing IDLE… but WOT was terrible… so I added a 3rd X pipe muffler… now WOT is great but low speed it quite… thinking of adding back in the NPP valves in a custom location before the AWE just for the moments when I want more idle volume… has anyone used the 2.5” NPP valves as a cut out and dump valve?
Any issues you can think of?
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