Thread: Newer GT S/C Mods

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  1. #21 Re: Newer GT S/C Mods 
    98SilvermistGTP
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    Default 01-10-2009
    Intake, 3" downpipe with cat, PCM/180 stat/Autolite 104(do these 3 together), modular pulley system with 3.5 pulley to start with and front Power Log(do these two at the same time). Do them in that order. That will get you started and will make a very noticable difference in the car. ZZPerformance has performance packages that have pretty much what I mentioned above. Good Luck!!!!
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  2. #22 Re: Newer GT S/C Mods 
    blueguy
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    Default 01-11-2009
    180* T-Stat, PowerLog & 3" Downpipe, FWI, Autolite 104's, Overkill/DHP PCM, 3.5" Pulley.

    Those should net you mid to high 13's

    OR

    Headers, 160*, and a 3.4"
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
    '99 Chevrolet Silverado Classic Z71 4x4 - K&N Intake/Gibson Exhaust #TRUCKTHINGS
    '12 Buick Regal Turbo - ZZP CAI/20% Tint/HID's
    '89 Ford Mustang LX Notchback - LM7 5.3, 4L80, 9", HX40
    '04 Chevrolet Corvette MRM A4/LS1 - TSP LT's, 3"O/R X, AFE S2 CAI
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  3. #23 Re: Newer GT S/C Mods 
    TDCRacing
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    Default 01-11-2009
    Keep us updated!
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