Skip to content

Racing Spec

XYZ Racing Racing Spec Coilovers — BMW Z3 M (Modified Rear Integrated) 1997-2001

SKU: BM721-RS

  • IncludesFull set of 4 (front + rear)
  • Spring rate (F/R)22 / 12 kg/mm
  • Top mountFront: Pillow ball + rubber / Hardened rubber · Rear: Pillow ball
  • Lead time10–15 working days

Fits Bmw Z3 M (Modified Rear Integrated) (1997-2001) chassis BM721

Front spring rate (kg/mm)

22 kg/mm recommended

The recommended rate is the factory setup for your exact car — leave it unless a suspension specialist has specified otherwise. Recommended: 22 kg/mm. A custom rate on this axle adds £80.00.

Rear spring rate (kg/mm)

12 kg/mm recommended

The recommended rate is the factory setup for your exact car — leave it unless a suspension specialist has specified otherwise. Recommended: 12 kg/mm. A custom rate on this axle adds £80.00.

Configured price£1,990.00Inc. VAT

Lead time: 10–15 working days from payment


£1,990.00

Made to order. Full payment is taken at checkout. Production begins once payment is confirmed.

Pay by card, Apple Pay, Google Pay — or Klarna on eligible orders.

XYZ Racing Racing Spec Coilovers — BMW Z3 M (Modified Rear Integrated) 1997-2001

The Z3 M’s S50/S52-fed chassis was always short-wheelbase and eager to rotate, and once the rear end carries a modified, RR-integrated setup, the standard damper valving is out of its depth the moment you push into a fast, bumpy apex. Racing Spec coilovers replace that compromise with a chassis-specific damper tune built for exactly this kind of car being driven exactly this hard.

This is the range built for serious track and time-attack use, not a fast-road compromise with a race label stuck on it. On a Z3 M running a modified rear end, that distinction matters: the geometry has already moved away from stock, and the damper needs valving that was actually developed against that change rather than a generic off-the-shelf curve.

What this coilover does for your 1997-2001 Bmw Z3 M (modified Rr Integrated)

With the RR-integrated rear end already altering how load transfers under braking and corner exit, Racing Spec damping gives you control that tracks that change instead of fighting it. Ride height and corner-weighting adjustment let you set the Z3 M’s short wheelbase up to rotate predictably rather than snapping, which matters more on this chassis than on most. Because the valving is derived from circuit-specific development rather than road-biased defaults, the car holds its line through direction changes without the vagueness that stock or fast-road dampers introduce once track temperatures and loads climb. The result on your car is a rear axle that stays composed under the kind of hard, repeated cornering loads a modified RR setup was built to handle, with front-to-rear balance you can actually tune session to session.

About the Racing Spec coilover

Racing Spec dampers are developed directly from circuit racing, with settings drawn from XYZ’s participation in events including the WTCC rather than generalised bench testing. That racing-derived valving is the baseline spec every Racing Spec unit ships with. Where a car’s modifications go beyond a standard track build, XYZ Racing also produces genuinely custom shock absorbers, built around the specific parts fitted to the car and the circuit it will actually run – the kind of case-by-case engineering a factory-class or A-class racing build demands. For a Z3 M with a modified, RR-integrated rear end, that custom-build route is worth discussing directly with your spec sheet, since this is precisely the scenario the programme was set up to cover. The construction reflects that racing pedigree throughout: this is a damper built to be adjusted and rebuilt as a race car is, not treated as a fit-and-forget road part.

Fitment for the Bmw Z3 M (Modified Rr Integrated) (1997-2001)

This kit is built for the Bmw Z3 M chassis code BM72-1 across the 1997 to 2001 production run, specifically for cars with a modified, RR-integrated rear end. Confirm your Z3 M matches this rear-end configuration before ordering, since the damper valving is set against that specific geometry rather than the standard rear axle.

What buyers also search for

  • Bmw Z3 M coilover upgrade for track and time-attack driving
  • Bmw Z3 M Racing Spec damping suited to modified RR-integrated rear ends
  • Bmw Z3 M BM72-1 chassis coilover kit for the 1997-2001 model run
  • Custom shock absorber options for heavily modified Z3 M race builds
  • Circuit-tuned suspension for short-wheelbase BMW roadsters

Racing Spec is the range to start with once your Z3 M’s rear end has moved past stock geometry – configure yours below to match your car’s exact spec.

Racing Spec damper is specially made for track race, and all settings have been obtained from direct participation in racing event such as WTCC. In some circumstances, particular custom-made shock absorbers are available for those cars that have aggressive upgrades like factory’s racing vehicles or A-class racing cars etc…You may provide us with detailed info on all upgraded parts in your car and what circuit you will run, and we are able to make custom shock absorbers for your personal car.

Top mounts included with your kit

Every XYZ Racing coilover kit ships with the upper mounts listed below for your exact chassis — no extra parts to source.

Front

  • Pillow ball + rubber top mountPillow ball + rubberP+Pillow-ball upper with a rubber insert — adds steering precision and camber adjustability while keeping some of the factory mount’s harshness damping.
  • Hardened rubber top mountHardened rubberRHardened rubber upper — firmer than the factory bush for tighter response while retaining road-friendly noise and vibration isolation.

Rear

  • Pillow ball top mountPillow ballPSolid pillow-ball (spherical bearing) upper — chosen for rigidity and precise camber adjustment, the sharpest steering response of the options.
Same car

Other products that fit this vehicle

Coilover ranges, brake kits and wheels for this car