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1998 GMC C/K 1500 Performance Chips & Programmers

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Latest Customer Reviews

Hypertech Max Energy Programmer Reviews


Some what pleased!

Reviewed By Rob W (Hamilton, MT) Reviewed for a 2006 GMC C/K 1500 —2/24/2009 6:39 PM

After installing the hypertech max energy programmer I did notice an increase in power and have increased in fuel economy by 2 to 3 miles per gallon. I changed the shift firmness 25% and this made a big difference. Overall, it's good, but not great in increasing power. I wish Hypertech would give you more instructions on what level to increase or decrease shift points for towing and non-towing.

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Jet Performance Programmer Reviews


2003 GMC Sierra 1500

Reviewed By Tommy W (Gardnerville, NV) Reviewed for a 2003 GMC C/K 1500 —11/11/2006 11:11 AM

The programmer is EXELLENT. Definatly worth your money. Easy installation, you will have more power in no time!

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Jet Performance Module Reviews


Noticeable economy improvement

Reviewed By Travis D (Nashville, TN) Reviewed for a 2008 Chrysler PT Cruiser —7/12/2015 7:40 AM

I installed the stage 2 performance module after installing: Airaid intake Jet throttle body spacer Mishimoto 158 degree thermostat Msd ignition w/ vms 10mm wires JBA cat4ward headers & dei titanium wraps The module has really made everything play nice together, and I'm seeing about 30% increase in fuel economy! Well done, Jet! The only reason I gave 4 stars on installation is that you have to remove the air intake and power steering fluid reservoir to get the module to fit.

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