i took my MSP to the sterling heights location to get the bushings replaced, ECU reflashed, and the oil changed, upon leaving the car 'felt' like it was pulling harder, but after really driving it for a little while it was no different, was merely in my head that it was faster... well it had sat in my garage for about a week and when i went to drive it i noticed a small puddle of oil underneath, this is a brand new car, why would there be a puddle of oil under it? especially since it never leaked before... i check everything over from the top of the engine bay, nothing, so i jack up the car to check the oil pan, grab the oil pan bolt and 4 full turns later i had it finger tight, they had forgotten to tighten the oil pan bolt, now keep in mind i live in lansing, thats a good hr and a half drive for me with a LOOSE oil pan bolt, thank god it barely leaked any oil out so there was no chance of damage, but im sure you can all imagine just how upset i would have been had the bolt fallen out on my way home... needless to say i will never go back there, about the only thing that was fixed is the bushings, and who knows, they might have even just re-installed the bushings that start to squeek again instead of the upgraded ones...
and the service guy also played a lot of those games with me, "you touched this so its not under warranty anymore" blah blah blah, refused to warranty my blown sub, told me a bunch of other bulls***, not to mention i was sitting in the waiting room for like 5-6hrs for them to reflash the ecu, do an oil change, and replace the bushings, in my garage i could do all that in an hr... which really isn't that big of a deal, but i told the guy that if it was going to take longer than an hour or 2 that i'd like a loaner car for the afternoon so i didn't have to sit around the dealership, he assured me it would take no time at all...