Ya'll bust in here and let me know your history with, opinions about, and facts about the performance chips out there for my 2007 Silverado, LT , 5.3L, Crew cab. I pull a bass boat once or twice a week and the gas mileage and torque are Ok, but can it be better?
I don't want to damage the management system of the truck but I have been in the electronics industry for over 25 years and know that trucks and cars are just now starting to get smarter internally, but have a long way to go be be high tech.

From Bama but Bleed Kentucky Blue!

ALUKFAN

 

I have an 06 Silverado with a 5.3 with the hypertech programmer. Ive had the programmer on it since the fall of 06. I didnt really notice a ton of power gain. I mean, you can feel it, but its not like "h**y s**t!" power. Torque gain is about the same. You can change shift points, rev limiter, and tire size for speedo correction which is cool. The only thing Im not sure about, and I hope somebody smart chimes in here, is the effect of the "sport" tune on the emmisions systems. I recently had the drivers side cat come apart. I talked to a muffler guy and he said the motor must be running too rich and caused the cat issue. I tend to dissagree, but Im deffinately not a mechanic. I think the cat came apart because my truck is lowered, and the driers side exhaust tube has came into contact with the road on numerous times....

 

I have a Superchips Flash Pac programmer and it is good. I also had a hypertech programmer on my same truck and it was just the regular handheld which was a waste of mooney. Now my buddy swears by his Hypertech... it is also the Hypertech Max. From what I heard it is a real good programmer, but after this post everyone is going to tell you to get a true tune done. Which I intend to agree, but for me money is the problem and even though it is on my list to have done. It all depends on what you are looking for. I am happy with my Superchips handheld for what I do with it.

 

Found this thread only now (after last reply in 2011), but i think this information will be useful.
I have a 2005 Silverado 1500. From that time i`ve tried a bunch of programmers cuz i love off-roading, and for me it`s very important to change from time to time my tires. So, all of these Edge Products, PPE, Gorilla, SCT - ALL of these is suck, instead of ONE that i`m using still from 2012.
It`s Superchips Flashpaq F5. Damn, this boy is very accurate when it comes to calibrate the speedometer,when i change my tires.
I can`t describe all the features that this programmer have, but here the review of this boy: https://4wdlife.com/programmers-for-...-silverado-53l