I HATE THE AFM

[iamdub]

I've had GMs my whole life and recently picked up a 2007 Tahoe LTZ w/ 130k miles in mint condition for $4k from a friend that had depreciated it through his business and was basically dumping it. Aside from a CCM leveling kit and BFG A/T's I do not plan to add any additional mods.

I'm new to the tune scene but based on this thread it looks like Black Bear is the way to go and will cost $600 at most. Is there any reason NOT to get a BB tune?

nope. no reason not to get a tune. will be money well spent.

What Jacob said. That $600 investment will be returned in multiples just from the enjoyment of the better performance and [possibly/likely] better fuel economy. Let's not forget about disabling the AFM. If (more like WHEN) the engine has an AFM failure, those repairs would easily cost 2-3 times that $600 tuning cost.

 

[the highlander]

AFM Failure will happen whether the system is activating or not....

 

[ezstriper]

not from many have said...disabled both of mine