1998 GMC Sierra Performance Chips
- HYPERTECH® - Max Energy ProgrammerGMC Sierra 1500 V6 4.3L Gas 1998, Max Energy Programmer by Hypertech®. Premium Fuel: HP Gain 13, TQ Gain 27. The Max Energy Programmer series provides high levels of power and economy for gasoline engines, with specific tuning applications geared...Our price: $329.99$329.9920% OFF
- HYPERTECH® - Speedometer Calibrator ProgrammerGMC Sierra Gas 1998, Speedometer Calibrator Programmer by Hypertech®. The law requires accurate speedometer readings, even if you have non-stock tires or gear ratios installed. The Speedometer Calibrator is created to provide that specific...Our price: $229.99$229.9920% OFF
Posted by David Y.
"My truck feels a lot different when I installed the Gt tuner on performance, and it's a really good performance chip."
Posted by Josh K.
"Installed in my 2011 Sierra with the custom dash mount, took about 20 min to get everything in and working. Very easy to install and looks great! Several custom tunes to choose from on the device, or go to Edge website and download others."
Posted by Bridget B.
"Completely satisfied with the product, expedited shipping and the price was better than any other place I searched! Will definitely do business again!"
Posted by Howard S.
"It lived up to every thing I wanted."
Posted by Kory G.
"So far it's great, I bought it to make sure my truck was running ok and to monitor gauges."