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1999 GMC Sierra Gas Saving Products

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Latest Customer Reviews

K&N 57 Series FIPK Air Intake (50-State Legal) Reviews

GMC Sierra 1500

Reviewed By Logan D (ALLIANCE, NE) Reviewed for a 1999 GMC Sierra —6/17/2015 5:17 AM

It was easy to install and also had a great appearance for my 99 Sierra. Overall, I was impressed with how easy it was to install and also the performance I got out of my truck right after installation! A+

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Hypertech Max Energy Programmer Reviews

Hypertech Max Energy Power Programmer

Reviewed By Richie F (FARMINGDALE, NY) Reviewed for a 1999 GMC Sierra —3/11/2014 8:57 AM

I have a 99 Sierra short bed, Cold air intake, throttle body spacer, Magna flow cat back and 33 inch tires and rims. Your product really Woke my truck up,also took care of tire ,speedometer and shifting issues I would let you know about the gas mileage but I can't keep my foot off the accelerator. This is a Great product and your service was excellent

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Superchips Flashpaq Tuner Reviews


Reviewed By german b (SCOTTSDALE, AZ) Reviewed for a 1999 GMC Sierra —3/6/2014 9:14 AM

Once i install it into my truck right away i notice the difference on my rpm's.

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