i talked to the service manager at harbor chevy in long beach, we talked to Joe the mechanic not the plumber about doing the tune kit on my car, he did a great job and was glad he did it, took about hour half, downloading software was slow, had him tighten the two t-clamps, i read the tubes come loose and got a free car wash all for $135.00, anyone at the dealership was curious if the kit was worth it, first gear tires broke loose wasnt even trying to, i back off no need to smoke the tires, shift to second boost went to 15 psi and then 23 psi car came alive it launched forward tires broke loose, car went left to right due to uneven street and a pot hole, i almost lost control, i had enough for the first test drive, the kit was worth it.