Dropped the car off early today for the GMPP stage kit today. The tech never had put a GMPP kit on a HHR SS before. He had it installed in under 2 hrs, got the SS back and its running great. I'm pulling between 18-20 psi, I could only get 15 psi max before the install. I read some where it takes the stage kit 5-6 key cycles to fully learn the new flash? So does this mean that the car possibly gets a little faster? When the wife drove it right after pick up she could only manage 18 psi max, she came home, I drove it 15 min later and could manage 20 psi. She does know how to drive a turbo car (5 spd to boot), she drove my other turbo cars and embarrassed more then one ricer on ocassion, . I saw some people were getting 20-24psi with the GMPP install. Now I do live in Alabama, aka humidity hell and know this will effect the boost.

 

I had mine done about 3 weeks ago and love it. No problems at all. Before I had the upgrade I would get around 18psi now 22 :) Next on my list is a downpipe

 

The amount of boost depends on the temperature and altitude/barometer. As for "learning the tune". It does not learn the tune, but if you production cal had learned down at all it may take a few key cycles to undo the learn down since that feature is turned off it the kit. Therefore, some people seem to experience the kit getting stronger after a few key cycles.

 

Thanks for the clarification, appreciate it.

 

Where in bama do ya live and what dealership? I'm in Birmingham and i'm interested to see what dealers have done the install around here.

 

Athens, Alabama, straight up I-65, my dealer (Champion Chevy) originally charged me for 2 hrs installation (180.00), but when i picked it up it took less time to install and they charged like 175.00. It wasn't a huge price difference but nice to know they actually charged for the actual time. I'm sure any dealer that has a good tech could do the install with no problems since the revision changes on the install. There you go

CHAMPION CHEVROLET CHRYSLER DODGE
921 SOUTH CLINTON STREET
ATHENS, AL 35611
(256) 232-5692