In Reply to: what had done on the S4?? posted by ? on November 28, 1999 at 20:00:28:
Vortrag Motorsports specially valved coilovers (actually Koni shocks). Spring rates 600 front, 650 rear. The owner is a good friend of mine...cost for suspension $2.3K...install $450....corner balancing and alignment still to be done. The cars IS NOT chipped, nor does it have any intake or exhaust changes.