XYZ Racing Racing Spec Coilovers — BMW 1 SERIES F40 3/4 CYL (Modified Rear Integrated) 2019-2026

The F40 1 Series moved BMW’s smallest hatch onto a front-drive-derived platform, and with it came a rear axle that responds very differently to spring and damping changes than the old RWD 1 Series ever did. That shift matters once you start pushing a 3- or 4-cylinder F40 on track, where the standard suspension’s soft, comfort-biased tune lets the body roll and the rear settle unpredictably mid-corner.

Racing Spec is XYZ Racing’s dedicated circuit kit for exactly this scenario, built for owners running the F40 in serious track and time-attack sessions rather than the odd trackday. It replaces the factory geometry compromises with a setup you can actually tune around your specific chassis and circuit.

What this coilover does for your 2019-2026 Bmw 1 Series F40 3/4 CYL (Modified Rr Integrated)

Fitted to a 2019-2026 F40, this kit sharpens turn-in by controlling the body roll that the factory dampers allow, which on a nose-light hatch platform like this translates directly into a more planted rear axle under trail-braking. Ride height drops to a level that lowers the centre of gravity without compromising the modified rear integration this chassis code specifies, keeping the geometry within its intended working range rather than fighting it. Because the damping is derived from real circuit development rather than a generic road tune, you get consistent support through repeated heavy braking zones instead of the wallow or fade that stock-spec suspension shows after a handful of hot laps. For the 3- and 4-cylinder F40 in particular, where weight distribution is more sensitive to setup changes than on the six-cylinder cars, this level of adjustability lets you correct understeer or oversteer tendencies specific to your car’s spec rather than accepting a factory compromise.

About the Racing Spec coilover

Racing Spec is built from settings XYZ Racing has taken directly from circuit racing programmes, including WTCC-level competition, rather than adapted down from a road-going product. That background shapes the entire construction: the damper is tuned for the loads and consistency demands of wheel-to-wheel and time-attack running, not everyday comfort. For cars carrying more aggressive modifications, XYZ Racing also offers a bespoke route, building custom shock absorbers around your car’s specific upgrades and the circuits you intend to run, in the same way it has for factory racing and A-class competition cars. That custom-order option exists precisely because a one-size circuit setting can’t cover every build, and it’s worth knowing about if your F40 already carries other performance modifications beyond the suspension. The result for the standard Racing Spec kit is a damper that behaves the same on lap ten as it does on lap one, with a range of adjustment wide enough to chase a specific balance rather than settle for a generic firm setting.

Fitment for the Bmw 1 Series F40 (2019-2026)

This kit is built specifically for the F40-generation BMW 1 Series, chassis code BM109-1, across 3- and 4-cylinder variants with the modified rear integrated configuration, covering the 2019 to 2026 model years. Confirm your car matches this specific chassis code and rear-end configuration before ordering, as the modified rear integration changes the mounting and geometry requirements relative to a standard F40 rear axle.

What buyers also search for

• BMW 1 Series F40 track suspension setup for time-attack and circuit days
• F40 coilover kit that holds its damping consistency across a full track session
• BMW 1 Series racing suspension with WTCC-derived damper settings
• Adjustable coilovers for 3-cylinder and 4-cylinder F40 track builds
• BM109-1 chassis-specific coilover for the modified rear integrated F40

Spec your F40 the way you’d spec a car built for competition, not compromise, configure yours below.