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Super Sport

XYZ Racing Super Sport Coilovers — BMW 4 SERIES G23 (2WD/4WD) 4/6CYL 2020-2026

SKU: BM121-SS

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

Fits Bmw 4 SERIES G23 (2WD/4WD) 4/6CYL (2020-2026) chassis BM121

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£1,090.00Inc. VAT

Lead time: 10–15 working days from payment


£1,090.00

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 Super Sport Coilovers — BMW 4 SERIES G23 (2WD/4WD) 4/6CYL 2020-2026

The G23 4 Series convertible carries a folding hardtop mechanism and reinforced body structure that adds real mass over the front and rear axles compared to the coupe, and that weight shows up first in body control over broken tarmac. XYZ Racing’s Super Sport coilover is built for that exact trade-off: fast-road comfort during the week, enough composure to hold a line through a B-road or a track day weekend without the standard suspension’s float.

Whether your G23 runs the 4-cylinder or 6-cylinder layout, and regardless of 2WD or 4WD drivetrain, this kit replaces the factory springs and dampers as a matched set, so the ride height, spring rate and damping curve are calibrated to work together rather than as compromises bolted onto a stock setup.

What this coilover does for your 2020-2026 Bmw 4 Series G23 (2wd/4wd) 4/6cyl

Height adjustability means you can drop the G23’s centre of gravity to suit the way you actually drive it, tightening turn-in response without pushing the ride into harshness on daily roads. The 36-way damping adjustment lets you separate compression and rebound behaviour for a car that has to do two jobs: soak up potholes and speed bumps on the commute, then firm up for a track day without a toolbox and a spare afternoon. On the heavier 4WD 6-cylinder cars, tighter damping control checks the pitch and dive that comes with the added driveline mass under braking and hard direction changes; on the lighter 4-cylinder 2WD variant, the same adjustability lets you dial out body roll without turning the ride brittle. Because the kit is height and damping adjustable rather than fixed, you can also correct any ride-height sag introduced by the drop-top’s extra structural weight, keeping wheel geometry where it should be.

About the Super Sport coilover

The Super Sport damper is engineered to eliminate the discomfort of bumps and rough roads that a stiffer aftermarket setup often introduces as a side effect. Ride height is independently adjustable, and the damper carries 36 separate adjustment stops for dampening, giving a wide enough spread to retune the car’s character as road conditions change rather than living with one fixed compromise. That range is what lets the same physical parts sit comfortably on a daily commute and then get wound up for a weekend on track or a spirited backroad without swapping hardware. It’s built as a dual-use damper rather than a single-purpose track piece, which is the right brief for a car like the G23 that most owners will use every day and only occasionally push hard.

Fitment for the Bmw 4 Series G23 (2wd/4wd) 4/6cyl (2020-2026)

Built specifically for the BMW 4 Series G23 chassis (chassis code BM121), covering model years 2020 to 2026 across both 2WD and 4WD drivetrain configurations, and both 4-cylinder and 6-cylinder engine variants. Confirm your exact drivetrain and engine spec against your V5 or build sheet before ordering, as the G23 range spans several distinct powertrain combinations across this production run.

What buyers also search for

  • BMW 4 Series G23 suspension upgrade for road and track use
  • BMW G23 convertible coilover kit with adjustable ride height
  • BMW 4 Series Super Sport damping for fast-road and weekend circuit driving
  • BM121 chassis coilover options for 2WD and 4WD variants
  • BMW 4 Series G23 height-adjustable coilovers for 4cyl and 6cyl models

Configure the spec that matches your G23’s drivetrain and engine below to get the exact fitment 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

  • OE (factory) mount top mountOE (factory) mountOERetains the OEM (factory) upper mount — preserves the original ride comfort, noise and vibration behaviour for a stock-like feel.
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