How to Install KW Clubsport Coilovers: 718 Cayman GT4

Bolting KW Clubsport 3-Way coilovers onto a 2020–2024 Porsche 718 Cayman GT4 (982) is the single most transformative chassis upgrade you can make to a car that already leaves the factory with a 414-horsepower 4.0L flat-six, PASM adaptive dampers, and a mechanical limited-slip differential. This step-by-step guide walks through the full install on the GT4 — the parts you need beyond the coilovers, torque and prep, corner balancing, alignment, and the baseline 6/14/16-click damper settings to start from. Done right, it is a weekend job that unlocks the track-ready adjustability the 982 GT4 was built to use.

Why Fit KW Clubsport 3-Way Coilovers to a 718 Cayman GT4?

The KW Clubsport 3-Way is a motorsport-grade coilover that gives you independent control over ride height, rebound, low-speed compression, and high-speed compression — the exact tuning axes a 718 Cayman GT4 rewards on a road course. The factory PASM setup on the GT4 is excellent for a street/track compromise, but it is a two-mode electronic system: you cannot separate how the damper reacts to a curb strike (high-speed compression) from how it settles under braking and weight transfer (low-speed compression). The Clubsport 3-Way can, and it does it with the car in the paddock using tool-free click adjusters.

The GT4 is the ideal platform for this kit. Its 3,996 cc naturally aspirated flat-six spins to an 8,000 rpm redline, makes 414 hp at 7,600 rpm and 310 lb-ft between 5,000 and 6,800 rpm, and pushes a curb weight of roughly 3,150 lb. That is a mid-engine chassis with real aero (a fixed rear wing and functional diffuser) and enough mechanical grip that the limiting factor at a track day is almost always damping and geometry — precisely what this coilover addresses. KW's Clubsport line is TUV-approved, uses stainless-steel “inox-line” strut bodies for corrosion resistance, and ships with camber-adjustable unibal top mounts up front so you can dial in negative camber without aftermarket plates.

The Complete GT4 Coilover Setup: Parts You Actually Need

Because the 718 Cayman GT4 leaves the factory with PASM adaptive dampers, you cannot just unbolt the OEM struts and drop in a manual coilover — the car's chassis controller will detect the missing dampers and set a suspension fault. You also want to correct the geometry that a lower ride height changes. The table below is the exact shopping list our Tampa shop specs for a track-focused GT4 Clubsport build. Every part is verified fitment for the 982 GT4.

The one part most people forget: the ESC module

The KW GT4 ESC (Electronic Suspension Cancellation) module is not optional on a PASM-equipped GT4. It plugs into the factory PASM harness in place of the electronic dampers and tells the chassis controller that everything is present and healthy, so you never see a suspension warning on the dash. Install it at the same time as the coilovers — retrofitting it after the fact means pulling trim again.

Adjustable links keep your alignment honest

Lowering any car changes its suspension geometry. On the 718, dropping ride height steepens the front sway-bar endlink angle (which preloads the bar) and pushes rear camber and toe out of the factory window. The SPL Parts front swaybar endlinks let you set link length so the bar sits neutral at your new ride height, and the SPC adjustable trailing links give the alignment tech the range to pull the rear back into — or past — spec for a track setup. Together they turn a “dropped” GT4 into a properly cornered one.

Tools, Torque and Prep Before You Start

Plan on a full day. A confident DIYer with a lift and impact tools can complete the GT4 coilover install in about 6–8 hours; the corner-balance and alignment that follow are a separate session on scales and an alignment rack. Before you lift the car, gather the following:

• Two-post lift or four sturdy jack stands rated well above the GT4's ~3,150 lb curb weight
• Metric sockets and hex/Torx bits (T30/T45 for trim and shrouds), plus a quality torque wrench — Porsche wheel bolts torque to 118 lb-ft (160 Nm)
• Spring compressor is not needed — the Clubsport ships as a complete assembled strut
• KW spanner wrenches (included) for the height-adjust lock rings
• Penetrating oil, anti-seize for the perch threads, and a ride-height tape measure
• The KW ESC module, SPL endlinks and SPC trailing links from the parts list above

How to Install KW Clubsport Coilovers on the 718 Cayman GT4

Work one axle at a time and never load the suspension with the car in the air on a floating strut. Here is the sequence we follow in the shop.

1. Pre-set your ride height on the bench. Measure the OEM strut assembled length and set the KW Clubsport to match as a starting point, then note it. This saves you chasing height on the car.
2. Lift, remove wheels, and support the hub. With the car safely on a lift or stands, remove the 20-inch wheels and support each hub carrier so nothing hangs on the ABS or brake lines.
3. Disconnect the PASM damper plugs. Unplug the factory electronic damper connectors — these are what the ESC module will replace. Route and connect the KW ESC module into the PASM harness now.
4. Remove the OEM struts. Free the sway-bar endlink, any sensor brackets, and the strut-to-hub bolts, then the upper mount nuts. The complete OEM strut drops out as a unit.
5. Install the Clubsport struts. Fit the front units with the camber-adjustable unibal top mounts, start all fasteners by hand, then torque the strut-to-hub bolts and top-mount nuts to KW's listed values. Repeat at the rear.
6. Fit the adjustable links. Install the SPL front swaybar endlinks and SPC rear trailing links at your target ride height so the bar sits neutral and the rear geometry is in range.
7. Reconnect, reinstall wheels, and set rough height. Torque wheels to 118 lb-ft, lower the car, and roll it back and forth to settle the suspension before taking your first ride-height measurement.

Corner Balancing and Alignment: Where the Lap Time Lives

A coilover install is only half the job — the setup that follows is where a 718 Cayman GT4 finds its balance. Set your target ride height first (most GT4 owners run just 5–20 mm below the factory PASM height to preserve suspension travel for track use), then put the car on corner-weight scales with a driver-weight ballast in the seat and a half tank of fuel. Adjust the spring perches to bring cross-weight as close to 50% as the chassis allows; on a mid-engine car this dramatically evens up left/right braking and corner-entry behavior.

Finish on an alignment rack. Use the camber-adjustable front top mounts and the SPC rear trailing links to dial in your targets. A fast-road/track alignment on a GT4 typically lands somewhere around –2.5 to –3.0 degrees of front camber with a small amount of toe-out up front and modest rear toe-in for stability — but treat those as starting points and adjust to your tires, track, and driving style. Re-check corner weights any time you change ride height.

Baseline 3-Way Damper Settings to Start From

The Clubsport 3-Way splits damping into three independent circuits: rebound (16 clicks), low-speed compression (6 clicks via the purple dial), and high-speed compression (14 clicks via the gold wheel). Start from KW's recommended baseline in the kit's setup sheet, then change one variable at a time. A sensible street/track starting point is to run rebound and low-speed compression roughly in the middle of their ranges, and open high-speed compression a few clicks from full-soft so the car absorbs curbs and pavement seams without unloading a tire.

From there: add low-speed compression if the car feels lazy on turn-in or dives under braking; add rebound if the body floats or feels under-damped over crests; and only touch high-speed compression for curb-strike and impact harshness. Log every change — the whole point of a 3-way is repeatability, and the paddock-friendly click adjusters make it easy to return to a known-good baseline.

KW Clubsport 3-Way on the GT4: Pros and Cons