CAP Rear Subframe Mount Insert Kit - Audi - B8/B8.5 S4/S5/RS5, Q5/SQ5, Allroad

Very well manufactured, highly recommended product and quick support from them.

Subframe mounts 2013 Audi s4

Very easy install once you get the old parts out. Subframe bolts were tricky - especially the rustier one. Would recommend spraying penetrant on the days leading up doing the work. Wish I had. Use 1/2inch drive tools if you have ‘em - that’s what saved me. Long breaker bar or mid-high torque 1/2 impact would be best for breaking those bolts free. Make sure you also have some kind of angled pry bar handy for getting the stock bushing inserts out. Eye protection would also be a good idea as there is a lot of hidden road debris under there - not to mention the stock inserts will come flying at you when you pry them out. Replace the bolts. Get them from Audi Parts Direct in North York. Part # WHT0044756A. Way cheaper than anywhere else, even with shipping. Fun job, overall.

What are you waiting for?

Stop thinking about it and just buy them already! This was one of the easiest modifications I have ever done, and I could tell a difference right away. Do the whole insert package, it's incredible what it does for this platform!