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Old 07-16-2019, 01:07 PM   #33
JCunningham


 
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Drives: 2017 2SS M6
Join Date: Jun 2013
Location: WNY
Posts: 7,070
you have to buy the 1LE track pack to get it tuned. GM will not tune it if you dont. you dont have to install it for them to tune it. its not just the MRC tune its the springs. they lower the car 1/2" and are a little stiffer. the sway bars are a little stiffer then the SS. and the arms that come with it have bearings in them instead of bushings. the only thing you cant get is the Ediff and drive modes. i recommend just getting the 1LE.
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real ZL1 wheels and brakes, 285/305 Michelin Pilot Super Sports, Pray ported Intake manifold, Soler Throttle Body, Rotofab intake, EFI Tuning Flex fuel kit, full American Racing Headers Exhaust, 1 7/8" w/ cats H pipe and mufflers. Full 1LE suspension, with BMR adjustable sway bars and links, GM aluminum cradle bushings, Hurst shifter with lighter reverse spring, TWM shifter knob, Tick level 1 transmission. I should have bought a ZL1
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