The Audi came with S4 suspension, however, the front right spring was broken and tracking down a replacement was proving difficult. The easy way out is an aftermarket solution, and H&R offers Sport and Race springs for the B5 A4.
H&R Sport: 50396
H&R Race: 29996-1
I went back and forth on whether to get the Sport or Race. Obviously I live my life a quarter mile at a time, and even though there aren't any turns in the quarter mile, a stanced look has been shown to drop 1/8 mile times by up to 5 seconds. The Race springs with larger tires have also been reported to cause tire rubbing on the fenders, and shock life (mine are stock S4) is reduced due to the drastic drop. Also, people complain about scraping the undercarriage on speed bumps and getting stuck in the snow with Race springs. It became obvious to me that the Race springs are the clear winner, and that I needed them on my car immediately. If I plan to let other dads at play group know that I'm driving a super car, there is no other way than a 50 foot streak of sparks heading west on Standherd, just past Home Depot, where the bumps can launch a car 6 feet in the air at only 40 kph.
As I placed my order with AWE Tuning for the H&R Race Springs, Mike@AWE (that's his screen name on Audiworld) informed me that the Race springs weren't available in FLUORESCENT YELLOW to match the custom interior I plan to install. Damn. Stuck with All-Road suspension... Sports. To top it off, PURPLE they are. Gee, can't wait to lose my race to that red Pontiac Vibe down the street. Thanks Mike.
So, with my H&R Off-Road springs on their way from AWE, I decided it was a good time to disassemble the old strut assemblies. As it turns out, the lower spring perches were a bit corroded, right where the old S4 spring was broken. I noticed the same corrosion on both sides, and the left spring looked like it was on its way out.