whats up everyone...just a little bit about my truck before i get to my questions. i have an 01 Z71 Ext. Silverado. w/an 05 bed and taillights. I dont have any perfomance mods done to it yet, i do have my system and cb on it tho...! haha. I want to start my performance list off w/chip, exhaust, and an intake. I'm only 19 so my funds are limited, i have to do everything as i get money! my question is about the Nelson Tune. i've seen this listed on automotiveforums.com frequently and all over here...what exactly is it? what does it consist of? thanks for all ya'lls help


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