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2004 GMC Sierra Gas Saving Products

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Latest Customer Reviews

Hypertech Max Energy Programmer Reviews


Tuner for speedo correction

Reviewed By Roger G (SAINT SIMONS ISLAND, GA) Reviewed for a 2004 GMC Sierra —7/2/2015 4:55 AM

I was very pleased with the ease of use of this tuner. I bought for my speedo correction after a rear end gear change and a tire change. When I programmed everything the speedo was dead nuts on to my GPS. 5 miles later my ABS and brake warning lights come on. Called hypertech... said it was a known fault of the abs gm computer and I would have to continue to input tire size until I got within 10% of the front to rear wheel speed. I dropped it 1/2" and speedo is off by 1.5 mph @60mph. Recommend

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Access Vanish Tonneau Cover Reviews


Great cover

Reviewed By Hayden S (MANITOWOC, WI) Reviewed for a 2004 GMC Sierra —6/2/2015 11:36 PM

Looks great love the nice low profile only thing I did care for was the clamps that hold the brackets to the bed rails I ended up getting some nice stainless hardware and bolting mine in

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Flowmaster Exhaust Systems Reviews


Great sound

Reviewed By Shayne R (SWANTON, OH) Reviewed for a 2004 GMC Sierra —1/28/2015 9:11 AM

I love the looks of this on my 04 GMC Sierra. Sounds great as well. Mostly easy to install minus shearing off the studs from the stock mounting point. Although flow masters kit pre planned that as they supplied new bolts for that reason.

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Helpful 2004 GMC Sierra Gas Saving Products Articles