What dealer in MD? I went to Fox in Laurel and they actually told me to Google it and maybe I could find someone that would install it. This was a Chevy OEM part at a Chevy dealer! WTF?!?!? Ended up going to Radley in Fredericksburg VA because they were a GM Performance dealer and I live in VA (but work in Greenbelt MD). They did a very nice job but have had problems with the lower TMAP sensor hitting the AC comp.

Back to the original post. If your car is an Auto get the GMTU. Installed correctly it make a HUGE difference!

 

Over rated and pricey? Please tell me where else you can get a factory approved 24% (55 HP in auto applications) increase in power for $750 installed? Hell, show me a $750 installed mod on any engine that give you that kind of power. It's the bargain of the decade for those of us that wish to keep our warranty intact.

 

Criswell Chevrolet in Gaithersburg. During my interview with them even my service writer had done the install when he was a tech.

 

They just need to put washers in the mounts for the intercooler to move it forward. That fixes the AC T map issue.

 

Trifecta tune, much better H.P. and torque, was $400.00, and no problems.
As to your warranty. Your warranty is only as good as the dealership honoring it. Some do and some find ways not to.
As it's been stated before...if you care about your warrany that much, don't do anything to it. "Moon"

 

Having two sensors of a greater range of reading will give you more tuning options in the long run.

 

Only if youre going bigger turbo... Stock ones are fine for what the stock turbo can handle

 

Is there any other way to go?

 

i think in the next month im going with the GMTU i want the warranty and more power, this is just going to be a starter for me, do you know of any good installers in florida?