XYZ Racing Circuit Master Coilovers — BMW 4 SERIES G22 (2WD/4WD) 4/6CYL (Modified Rear Integrated) 2020-2026

The G22 4 Series carries more kerb weight than the F32 it replaced, and on the xDrive cars that mass sits further forward over the front axle. Push that combination into a fast, committed corner on track and the standard dampers run out of ideas long before the chassis does, particularly through direction changes where the integral-link rear axle needs to load and unload cleanly.

The XYZ Racing Circuit Master coilover kit is built for exactly that scenario: repeated, hard laps rather than the odd spirited B-road drive. It replaces the factory strut and shock assembly on both 2WD and 4WD 430i/440i-generation cars with a monotube design that keeps damping consistent as track temperatures climb across a session.

What this coilover kit does for your 2020-2026 Bmw 4 Series

Circuit-focused springs and a stiffer monotube body cut the body roll that a 4 Series G22 shows in quick transitions, so the rear axle stays planted under trail braking instead of stepping wide. Independent ride height adjustment lowers the centre of gravity and lets you correct rake once the car is corner-weighted, which matters more on the xDrive cars where front-heavy weight distribution otherwise pushes the nose wide at turn-in. With 9720 total damping combinations split across the kit’s 3 adjustment knobs, you can separate compression from rebound and retune the balance between sessions rather than accepting one fixed compromise. On the 6-cylinder cars the extra weight over the front axle benefits particularly from the added low-speed compression control, sharpening turn-in without making the ride ungovernably harsh off-track.

About the Circuit Master coilover

Circuit Master sits at the top of XYZ Racing’s coilover range and is built specifically around sustained lap-time work rather than road use. The monotube damper body and 3-knob adjuster layout give you a genuinely wide damping window – 9720 distinct combinations in total – so the same kit can be set up softer for a bumpy circuit or firmer for a smooth one without swapping parts. XYZ’s own racing teams run this damper internationally, and the tune reflects that: it is built to hold its damping characteristic lap after lap rather than fading as oil temperature rises. One quirk worth knowing – the small-bore oil passages that give the adjusters their range can produce a faint noise over sharp bumps or kerbs. That is a by-product of the fine adjustment resolution, not a fault, and it has no bearing on the damper’s performance on the sort of smooth circuit surface this kit is designed for.

Fitment for the Bmw 4 Series G22 (2020-2026)

This kit (chassis code BM120-1) is built for the G22-generation 4 Series produced from 2020 to 2026, covering both 2WD and 4WD (xDrive) drivetrains across the 4-cylinder and 6-cylinder engine range. The rear mounting hardware is specified for this platform’s modified integral-link rear axle, so no cutting or fabrication is needed to fit the kit front and rear.

What buyers also search for

• Bmw 4 Series G22 coilover upgrade built for track day and circuit use.
• Bmw 4 Series adjustable damping that holds its setting across a full track session.
• Circuit Master coilovers for both xDrive and rear-wheel-drive 4 Series G22 cars.
• Bmw 430i and 440i suspension setup for reducing front-end push in fast corners.

Pick your damping and ride-height spec for the 4 Series G22 in the configurator below.