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I have been running the GT500 t/b for a few months now and you can get by without a retune but it does make some dead spots at times by not having the correct values loaded for it. it's nowhere near the issues others have experienced using aftermarket t/b's but you should still have a retune just to get the correct values loaded.
There is very little to gain on N/A cars with this mod anyway. I imagine a KB,whipple or saleen s/c car would see decent gains making it worth the expense to purchase install and retune for this item.
FYI on a simple at track mod:
Power Steering Delete Belt= No reflash
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leonardracing.com
11.89 @ 114.77 stock longblock n/a auto
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2008 Shelby GT500
Performance White / Vista Blue Stripes
Serious Satellite Radio
HID Headlamps
GT500 Premium Trim
Shaker 1000 Audio System
Ambient Lighting
GT500 Signed Dash plaque & sill plate kit
SVT Power Upgrade Package:
FRPP CAI with Procal Tune
FRPP M-5230-SVT1 Exhaust
Factory Rated 540 hp / 510 ft/lbs
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07 Torch Red GT C&L 95mm CAI Brenspeed 93 octane tune , silver horse racing louvers, Dimond Plate Mats, Hurst Shifter, Front and rear BMR sways and adj panhard/brace. Halo fogs sitting in my room. Kooks LT otw.
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RE: Does (Insert Random Part here) need a tune?
. Seems like something chopped a couple of the topics off, maybe during one of the crashes
