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Gas Mileage with new exhaust??
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Have any of you seen any gas mileage gains from exhaust upgrades on the Hwy specifically? Also what are the best mods for power and gas mileage outside of replacing the heads and intake?
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Kaisersteiner
2006 Silver SRT 8
Toms River NJ
2006 300 SRT8...
PPP 426, Stage II Heads, Pro Race Cam, PPP Ported Intake, 2800 Stall Converter, American Racing Headers, Big Blue Injectors, Magnaflow catback, Airhammer CAI. Assembled by Bammann Racing. Tuned by Street Legal Performance with the help of Diablosport and PPP.
Best ET 11.90 @ 117 on 20" Nittos 1.71 60ft
Other then above mostly stock!!
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