The Eibach Pro-Kit is a two-spring front-only set for the 2021-2025 BMW M3 Competition 3.0LTT AWD G80 application. It targets the front axle alone, narrowing the oversized front wheel-arch gap while leaving the factory rear springs untouched. The coils use a progressive design that the manufacturer says keeps ride quality intact (Progressive Spring Design for Excellent Ride Quality.).
Against stock, the appeal is a lower center of gravity, which the manufacturer links to quicker stops and better cornering. Owners on user forums say the front springs remove most of the gap and the reverse-rake look, and a front-only kit costs far less than a full suspension package. The manufacturer also backs the set with a Five-Year Warranty.
Buyers searching for G80 M3 xDrive front-only springs or an E10-20-049-10-20 install should verify the part number first, because user forums say some people have been getting the xdrive version instead when ordering the RWD kit. xDrive installs take longer than RWD because of the damper and axle clearance, and a set of hand tools with a floor jack is enough for many DIYers.
Per user forums, the RWD and xDrive front-only springs are separate parts, and some buyers have received the wrong version. Confirm that the part number E10-20-049-10-20 matches your xDrive before ordering.
Owners on user forums report that the coils can be swapped without removing the axle bolts, and that pulling the shock toward you can give enough room to clear the fender.
The manufacturer lists a five-year warranty on the Pro-Kit.
Owners on user forums describe this as a manageable DIY job. One owner who installed the set with a helper used hand tools and a floor jack. The job is less straightforward than the RWD version. The sway bar end link, fender liner, top strut nut, and the four surrounding nuts may need to come off, and removing and reinstalling the springs can prove harder than expected. Avoid striking the damper rod when loosening or tightening the strut hardware. Plan on a wheel alignment after the springs have settled, because the ride height can shift in the first few weeks.