Which Custom Tune Should I Get?
#1
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13 Second Truck Club
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From: Sublette, KS
Just bought a 2003 GMC Sierra RCSB 2x4 with 5.3... Which tune do yall recommend? I previously ownd a RAM HEMI... I am just entering the GM stuff. O and I do plan on CAM headers intake and stall.
#2
A live tune is going to give the best results. By live I mean with tuner in vehicle logging parameters whether on the street or up on a dyno.
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Castro45
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