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1998 GMC Yukon Performance Chips & Programmers

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Latest Customer Reviews

Jet Performance Programmer Reviews


So far, so good

Reviewed By DAN T (Houston, TX) Reviewed for a 1998 GMC Yukon —12/4/2006 12:25 PM

Ordered this particular brand after reading complaints of others not having large enough tire size speedo corrections. My tires are 35" but Jet caple of 44" (I think) in 1/2" steps. OBDII reader funtion did show error code (transient problem) & reset (extinquish) 'service engine soon' light. Performance increase most notably from tranny shift points (speed & RPM) & firmness. Remebers stock settings of 1 vehicle only, so don't plan on using on multiple cars. I will reset to stock for next emissions check.

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Hypertech Max Energy Programmer Reviews


I'd buy it again

Reviewed By joe k (Davison, MI) Reviewed for a 2003 GMC Yukon —4/21/2014 8:17 PM

I like the Hypertech it was a little tricky to install the program but once I got it figured out....its well worth it...def noticed a difference.

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DiabloSport PC Interface - USB Cable Kit Reviews


looks dont matter

Reviewed By oscar a (Norfolk, NE) Reviewed for a 2005 GMC Yukon —5/4/2012 7:05 AM

So I bought this tuner not knowing anything bout it. I was worried I might not know how to properly install tunes and mesure paeameters. Well after a while of research I found out how to installl tunes I tried the 87 octane tune. Right away I felt a huge difference my truck was awake my acceleration was different more responsive. So then I did more reseach found a guy by the name of lew or diablew tunes predator gives u the option to install custom tunes and diablo.com gives u the information you need to find people that can make a custom tune for ur car/truck. I found lew won't go into much detail but he tuned my truck with balls. There is so much thing u can do with this tuner if u have mods on ur truck a custom tune is for you. Or even stock vehicles can enjoy this great product.

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