
XYZ Racing Racing Spec Coilovers — BMW 8 SERIES E31 8 CYL φ55 welding 1990-1999
SKU: BM113-RS
- IncludesFull set of 4 (front + rear)
- Spring rate (F/R)22 / 12 kg/mm
- Top mountFront: Pillow ball + rubber / Hardened rubber · Rear: Aluminium
- Lead time10–15 working days
Fits Bmw 8 SERIES E31 8 CYL φ55 welding (1990-1999) chassis BM113
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The E31 8 Series carries its 8-cylinder engine well forward of the front axle, and that mass shows up the moment you turn into a fast corner under load. XYZ Racing’s Racing Spec coilover, built here in the φ55 welded-body configuration for the BM113 chassis, is set up to keep that nose planted rather than let it roll wide over kerbs and corner entry.
This is the spec built for serious track and time-attack use rather than a fast-road compromise. It replaces the E31’s factory-soft long-travel setup with a shock and spring package tuned from real circuit data, not a lab bench.
What this coilover does for your 1990-1999 Bmw 8 Series
On a car this heavy through the nose, body control under trail braking is where most of the lap time gets left on the table. The Racing Spec’s firmer damping curve resists the E31’s natural dive and squat, keeping the contact patch loaded evenly through direction changes instead of pitching weight onto the outside-front tyre alone. Ride height drops as part of the kit, lowering the centre of gravity and cutting the roll that a factory 8 Series carries into a bend. For a car that was never sold with a factory motorsport option, this is the closest route to giving the E31 the composure its straight-line pace always promised on a circuit.
About the Racing Spec coilover
The Racing Spec damper is XYZ Racing’s circuit-focused unit, with settings drawn directly from series competition including WTCC entries rather than generic road-car tuning. Construction is built around the φ55 welded-body format specified for this chassis, giving the damper body the rigidity a heavier E31 needs under sustained cornering loads. Where a car has already picked up aggressive supporting modifications – bigger brakes, a stripped interior, a cage – XYZ Racing can build a custom-valved shock absorber around that specific setup; owners are asked to detail what’s been changed on the car and which circuit it will run so the damper can be matched to it rather than sold off the shelf. That bespoke option exists because the Racing Spec line was never meant to be a one-size-fits-all product – it is built around what the car and the track actually demand.
Fitment for the Bmw 8 Series (1990-1999)
This kit is built for the E31-generation 8 Series (chassis code BM113), 8-cylinder, covering the 1990-1999 production run in the φ55 welded-body configuration. Confirm your car matches the welded-body spec before ordering, as XYZ Racing lists this chassis separately from other body-mount variants.
What buyers also search for
- Bmw 8 Series E31 coilovers built for track and time-attack days, not just a lower ride height.
- Bmw 8 Series suspension upgrade that addresses the V12/V8 nose weight under braking.
- BM113 chassis coilover kit with φ55 welded-body fitment for the 1990-1999 E31.
- Bmw 8 Series Racing Spec damper with custom valving available for heavily modified cars.
Spec your BM113’s φ55 welded-body Racing Spec coilover and configure yours below.
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 + 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 rubberRHardened rubber upper — firmer than the factory bush for tighter response while retaining road-friendly noise and vibration isolation.
Rear
AluminiumAAluminium upper mount — a stiff, lightweight housing that locates the damper precisely and resists flex under load.
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