We just did all this work with the new GM performance parts...he's got a friend at a GM dealership who ordered the parts for him the day the part numbers got released to the dealers and he ordered everything with his discount...
Prices are approximate bacause I wasnt there when he ordered everything...but,
Fully assembled Koni Reds & Koni springs (I originally said eibach springs, but I checked today and I was wrong) = $800 GM P/N 12498354
Front and rear swaybars from Impalla = $50 each GM P/N 12498642
Strut tower braces off of a Buick Regal = $8 each
GM P/N 12456148
Poly bushings = ~$60
Beer, pizza, torque wrench, & jackstands = ~$150
Check out
GM Partsdirect they've got the basicly same costs, but charge a billion dollars (around $150) for shipping. Yes, the oem parts probably aren't as quality as the aftermarket made ones, but it still changed the way the whole car feels.
