How big of a differnce does a tune make?

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08-21-2012 | 07:46 PM

#11

05GMC4.8

TECH Apprentice

Joined: Jul 2005

Posts: 308

Likes: 4

From: Corpus Christi, TX

DO IT!

A stall and tune do wonders on these trucks. Gears too depending on what you already have.

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