Yesterday I installed the CT Race Worx lower a arms and Keller ball joints. I've got to say these things are pure badassery and cannot wait to punish them this weekend. What did you do?

So I've owned my car for less than a year and it has about 2500 miles on it. In the forum we've discussed the clutch noise and the dreaded "5K rattle". I've resisted putting the pipe insulation into the intake duct simply because here in AZ it gets ridiculously hot in the summer months...

Wondering if anyone else is actually making springs, I know ST and CT are selling them at different spring rates but it’s still Eibach in the end. I’m also curious is anyone can answer why it’s $315 more for stage 2, or 3. Is it not just different spring rates? I have a ‘18 RS 2 seater and...

I have been, and will be driving and fine tuning the X3 rs, and Ds models over the next month putting together recipes to fit owners styles so you can get the most out of your new x3. From just tweeking the stock equipment, to changing a few springs to fit your ride, Plus revalving to get a...

Has anyone started a thread on running bigger tires for the X3? What fits? What works? What needs done? Clutch job? lift? I couldn't get the search function to work. I'd like to run bigger tires on a DS.