2008 GMC Yukon Denali Cold Start

2008 Yukon Denali Cold Start with American Racing 1 7/8 Headers and Off Road Y-pipe and a few other minor tweaks ;-)

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Yukon vs Mudpit
One day after work hit up the Gorman Offroad Rec Park ;)

Headers and tune only Denali picks up 45rwhp!
Just installed headers and tuned this Denali and made very impressive gains! A pick up of 45rwhp! Call today to get yours installed! 713-466-9900

'Nali Dyno Run.m4v
2008 Yukon Denali Stage 2 Mods Black Bear Performance Initial Tune - Final Tune Pending Dyno Run

6.2L Sierra Denali True Dual Flowmaster 40's
Stock: 0:00 Flowmaster: 0:44 Before and after sound clips of my 2011 GMC Sierra Denali with a 6.2L V8 Exhaust work was done at Lou's Custom Exhaust in Kingston NH