Last week I had the Stg. 1 upgrade installed, and asked to check the brakes. They did and ordered the brake fix kit, which is fairly comprehensive. I drove the car (AT4) a couple of days with the turbo upgrade, and wow, what a difference! Then I took the car in for the brake fix, which took two days, and now that I have the car back, it feels like it doesn't have as much power. I could floor it at about 40, and with the kick down, it'd spin the tires like crazy, and now, it feels almost like stock. The boost gauge only registers 15lbs of boost at WOT, but I admit, didn't check it after the upgrade, and before the brake fix, so I'm not sure what it peaked at then. Is this all my imagination, or is there a reflash or something in the brake fix that'd minimize my Stage 1 upgrade?

 

15 psi is stock boost levels, sounds like you need to be reflashed again back to the stage 1 tune.

 

I agree it sounds like the wrong flash. They have a specific flash for the Upgrade with the brake fix that needs to be used.

 

Thanks for your guidance. I called my Chevy service rep, and he agreed there was something amiss. She goes in Fri. for a reflash, or whatever is needed. I'm very impressed with my local service dept. They have been much better than I expected. Their sales dept. still doesn't get it, though, because although I tried to buy the car from them, they wouldn't budge at all, even w/o a trade-in, so I bought internet.

 

there is a flash for the brake fix, and there is a flash for no brake fix.

when they put the stage in, they selected the correct flash

however when they did the brake fix after, they should have put the other flash in.