
XYZ Racing Super Sport Coilovers — BMW Z4 4 CYL 2009-2016
SKU: BM731-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 Z4 4 CYL (2009-2016) chassis BM731
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The E89 Z4’s four-cylinder cars carry a noticeably lighter nose than the six-cylinder 28i and 35i they share a platform with, but the folding hardtop still stacks mass low and aft of the cabin, and the standard suspension was tuned around comfort rather than the roadster’s actual weight balance. XYZ Racing’s Super Sport coilover kit replaces that compromise with a set-up built around fast-road driving and the odd weekend track session, giving the Z4 4 CYL the front-end bite its chassis was always capable of.
Super Sport sits below XYZ’s outright Circuit Master line, which makes it the right call for owners who want sharper turn-in and a lower stance without turning every commute into a chore. On a car whose N20 four-pot already carries less weight up front than its six-cylinder siblings, that translates into quicker direction changes without the harshness a track-only kit would bring to a daily-driven roadster.
What this coilover kit does for your 2009-2016 Bmw Z4 4 CYL
Independent height adjustment lets you drop the Z4’s centre of gravity and correct the slightly nose-light stance the standard ride height leaves on 4 CYL cars, tightening body control through direction changes without resorting to spacers or cut springs. The 36-way damping adjustment means you can wind the rebound and compression down for a motorway cruise, then firm everything up before a track day, rather than living with one compromise setting all year. Because the damper is tuned around road use rather than a single circuit map, the ride stays composed over the broken tarmac and expansion joints that a stiffer track-only set-up would transmit straight into the seats. Sharper damping control also keeps the Z4’s short wheelbase settled under trail braking into a corner, where a soft standard set-up tends to let the nose dive and unsettle the rear.
About the Super Sport coilover
Super Sport is XYZ Racing’s fast-road damper, built to take the harshness out of poor surfaces while still giving the driver a real say over how the car sits and reacts. The damper offers 36 distinct steps of compression and rebound adjustment, so the ride can be wound off for daily use or firmed up for a spirited B-road run or a track session without swapping parts. Ride height is independently adjustable at each corner, which lets an owner correct the Z4’s stance and set front-to-rear balance rather than accepting a fixed drop. XYZ positions Super Sport as equally at home on a daily commute and a weekend circuit outing, which is exactly the split most Z4 4 CYL owners are after. The monotube-style construction behind that adjustment range is what lets the same damper cover both jobs instead of forcing a choice between comfort and control.
Fitment for the Bmw Z4 4 CYL (2009-2016)
This kit is built for the BMW Z4 4 CYL, chassis code BM73-1, covering the 2009 to 2016 model years. It’s specced for the four-cylinder E89-generation roadster rather than the six-cylinder cars from the same production run, so check your engine code against the four-cylinder range before ordering.
What buyers also search for
- BMW Z4 4 CYL coilover upgrade for road and occasional track use
- BMW Z4 E89 four-cylinder ride height and stance adjustment
- BMW Z4 Super Sport damping that stays liveable on daily roads
- XYZ Racing coilovers for BM73-1 chassis codes
- BMW Z4 suspension setup for B-road handling without a harsh ride
Pick your damping and height range for the 2009-2016 BMW Z4 4 CYL 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
OE (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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