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Super Sport

XYZ Racing Super Sport Coilovers — BMW 8 SERIES E31 12 CYL φ55 welding 1990-1999

SKU: BM114-SS

  • IncludesFull set of 4 (front + rear)
  • Spring rate (F/R)8 / 4 kg/mm
  • Top mountFront: Pillow ball + rubber / Hardened rubber · Rear: Aluminium
  • Lead time10–15 working days

Fits Bmw 8 SERIES E31 12 CYL φ55 welding (1990-1999) chassis BM114

Front spring rate (kg/mm)

8 kg/mm recommended

The recommended rate is the factory setup for your exact car — leave it unless a suspension specialist has specified otherwise. Recommended: 8 kg/mm. A custom rate on this axle adds £80.00.

Rear spring rate (kg/mm)

4 kg/mm recommended

The recommended rate is the factory setup for your exact car — leave it unless a suspension specialist has specified otherwise. Recommended: 4 kg/mm. A custom rate on this axle adds £80.00.

Top mount

Configured price£1,190.00Inc. VAT

Lead time: 10–15 working days from payment


£1,190.00

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

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XYZ Racing Super Sport Coilovers — BMW 8 SERIES E31 12 CYL φ55 welding 1990-1999

The E31 8 Series carries its V12 well forward of the front axle, and that mass sits on a chassis that was never built to be stiffened easily – the φ55 welding-type strut construction on this Super Sport kit is specified precisely because the E31’s front turrets need a larger-diameter, seam-welded mounting point to handle spring loads without flexing the shock tower over time. This is not a bolt-in cartridge swap; it’s a kit designed around the physical reality of a 1990s grand tourer that weighs closer to a modern SUV than a sports coupe.

For fast-road driving and the occasional weekend track day, the Super Sport spec gives you 36-way damping adjustment to manage that nose weight through corner entry, plus ride height adjustment to correct the factory-soft stance that lets the E31 wallow under its own bulk. It’s built for owners who want the big coupe to change direction with more authority without turning the car into something unliveable on the M25.

What this coilover does for your 1990-1999 Bmw 8 Series

Fitted to a 1990-1999 8 Series, this Super Sport kit tightens the vertical control that the factory dampers lose as they age past three decades – most E31s on UK roads are running well beyond their original service life. The 36-way adjustment lets you firm up compression and rebound enough to check the V12’s forward pitch under braking, which is where this chassis feels its weight most. Ride height adjustability also lets you correct the nose-down stance many E31s develop as original springs sag, restoring the geometry the suspension was designed around. Because the damper is set up for both daily and weekend-race use, you’re not locked into a track-only compromise – you can run it firm for a circuit session and back off for the drive home. The φ55 welded mounting deals directly with the extra load a heavier, longer-wheelbase coupe puts through the strut top compared with a lighter 3 Series of the same era.

About the Super Sport coilover

Super Sport is XYZ Racing’s damper built to remove the harshness that usually comes with stiffer suspension – the kind of bump and rough-road discomfort that puts most owners off coilovers in the first place. It carries 36 individual damping stages, giving a genuinely wide spread between a compliant road setting and a firm, controlled one, rather than a handful of coarse clicks either end of the scale. Ride height is independently adjustable, so you can drop the car for stance or corner-weighting without touching the damping curve you’ve settled on. The construction is aimed squarely at drivers who split their time between daily commuting and weekend circuit outings, rather than a dedicated race-only product. On a car like the E31, where unsprung mass and strut-top loads are both higher than average, that damping range matters more than it would on a lighter chassis. It’s the kind of spec that rewards an owner willing to actually use the adjustment rather than set it once and forget it.

Fitment for the Bmw 8 Series (1990-1999)

This kit is specified for the E31-chassis 8 Series, 12-cylinder variants, built 1990 to 1999, and uses the φ55 welding strut-top design rather than a standard bolt-in mount. Confirm your V12 E31 falls within this production window before ordering, as strut-top diameter and mounting method are chassis-specific on this generation.

What buyers also search for

  • Bmw E31 8 Series coilover upgrade for daily driving and occasional track days
  • Bmw 8 Series V12 damping adjustment to control front-end weight under braking
  • E31 ride height correction for sagging factory springs
  • Bmw 8 Series Super Sport suspension setup for road and circuit use
  • φ55 welding strut-top coilovers for 1990s BMW V12 chassis

Configure your damping and ride height spec for this E31 below to get the exact Super Sport setup for your car.

Super Sport damper has eliminated discomfort resulted from bumps or rough roads. Super Sport damper enables you to adjust the ride height and has 36-way dampening adjustment. In other words, your car with this system can be set to meet all different road conditions. This high performance damper is suitable for both weekend race and daily use.

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

  • Aluminium top mountAluminiumAAluminium upper mount — a stiff, lightweight housing that locates the damper precisely and resists flex under load.
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