Super Chips... worth it or not?

[Jeremy Biagiotti]

i have a 17’ TaHoe, already have KN intake system and FM freeflow exhaust. Looking at chips but not sure if they yield the results for extra HP, MPG, etc..

 

[kentman]

I am using a 93 octane tune from Diablo Sport on my '06 5.7L Hemi Limited Commander. It bumps the Hemi up to 400 ft*lb of torque (about 12.9 lbm per ft*lb of torque), but also, it improves the transmission shifts really well. I bought the unit used on eBay for $150, and it was certainly worth it at that price. I will probably do something similar on the '15 Yukon XL when my wife gives it up to me for my daily driver. I like the ability to customize tunes for various octanes. You can load an '87 tune for long trips as needed.