2020-2023 718 Cayman GT4 Coilovers: KW Clubsport Review

The KW Clubsport 3-Way is the most capable set of 718 Cayman GT4 coilovers we stock, and at $11,894 it is also the most expensive suspension part in our Porsche catalog. It replaces the GT4’s factory PASM adaptive dampers with a monotube, external-reservoir race damper that splits compression damping into separate low-speed and high-speed circuits — 16 clicks of rebound, 6 clicks of low-speed compression, and 14 clicks of high-speed compression. This review covers what those three adjusters actually do, the $583.95 ESC module you cannot run the kit without, the true all-in cost after corner balancing and alignment, and who should buy an Ohlins Road & Track instead.

What Is the KW Clubsport 3-Way Coilover Kit?

The KW Clubsport 3-Way is a motorsport-derived, three-way adjustable coilover kit that replaces the 718 Cayman GT4’s factory PASM dampers with passive, independently tunable monotube struts. KW developed the Clubsport line on the Nürburgring Nordschleife and on a 7-post shaker rig, and the same damper technology underpins the KW Competition kits that have run the ADAC 24h Nürburgring. It is street legal — KW explicitly designs the adjustment range so you can soften the car and drive home from the circuit — but the tuning envelope is aimed squarely at HPDE, club racing, and time attack.

Mechanically, the kit uses inverted monotube struts with external expansion tanks, built from KW’s corrosion-resistant “inox-line” stainless steel. The adjustment range is TÜV-tested, and KW backs the kit with a limited lifetime warranty. Unlike a sealed OEM damper, the Clubsport is rebuildable: KW services and re-valves Clubsport and Competition dampers at the factory, so a hard-used set is a maintenance item rather than a throwaway.

What Do the Three Adjustments Actually Do?

A three-way coilover lets you tune rebound, low-speed compression, and high-speed compression independently — and on the GT4 that third circuit is the whole point. Low-speed compression governs what the car does when you load it: braking, turn-in, weight transfer, body roll. High-speed compression governs what happens when the road loads it: curbs, kerb strikes, expansion joints, sharp bumps. A single-adjustable damper couples those two together, so dialing in enough body control for a fast corner also makes the car skate and jack up over a curb.

Rebound: 16 clicks, TVR-A valve

Rebound is adjusted at the top of the strut through KW’s patented TVR-A (Twin Valve Rebound – Adjustable) valve, which offers 16 clicks. At low piston speeds a small oil volume takes a conical bypass; at high piston speeds the main rebound valve opens. That two-stage behavior is why you can slow the car’s rebound enough to keep the tire planted without making it feel dead and packed-down over a fast, bumpy section.

Low-speed compression: 6 clicks, purple dial

Low-speed compression is set with the purple dial on the external expansion tank and offers 6 clicks. This is your body-control and anti-dive adjustment — the one you reach for when the GT4 rolls too much on turn-in or dives under threshold braking into a slow corner.

High-speed compression: 14 clicks, gold dial

High-speed compression is set with the gold dial beneath the purple one and offers 14 clicks. KW’s TVCLH-A valve gives this circuit a blow-off characteristic with large flow cross-sections, which is the technical reason the Clubsport can run high low-speed forces without the car jacking up over curbs: a curb strike is a high-speed damper event, and it gets its own valve and its own escape route for oil. That single design decision is what a GT4 owner is paying the premium for.

Why the GT4’s Factory PASM Runs Out of Road

The 718 Cayman GT4’s biggest suspension limitation is not damping quality — it is that the factory ride height is fixed. Porsche gives the GT4 adjustable camber, adjustable toe, and adjustable anti-roll bar end links from the showroom floor, and the car already sits 30 mm (about 1.2 in) lower than a standard 718. What it does not give you is the ability to change corner weights or set rake. Without adjustable ride height you cannot corner-balance the car, and you cannot lower the nose to work the aero platform. Coilovers are the only way to unlock either.

The second limitation shows up once you upgrade tires. The GT4 makes 414 hp at 7,600 rpm and 310 lb-ft (420 Nm) from 5,000–6,800 rpm out of a 4.0L naturally aspirated flat-six that revs to 8,000 rpm, and it does 0–60 mph in 4.2 seconds with the six-speed manual (3.7 seconds with the PDK that Porsche added for the 2021 model year), on to 189 mph. At roughly 3,200 lb, that car puts serious load into the suspension under braking and in high-speed corners. The factory PASM tune is a road/track compromise, and owners consistently report it feeling underdamped once stickier rubber and a more aggressive alignment raise the grip ceiling.

The honest caveat: we could not find a published, GT4-specific lap-time test of this exact kit, and we will not invent one. The closest hard data point comes from a 991 Carrera S owner on Rennlist — not a GT4 — who moved from stock PASM to KW Clubsport 3-Ways with a professional setup and went from a 1:54 to a 1:52.61 at Buttonwillow, describing the car as “confidence inspiring” and “surprisingly compliant over the high-speed curbs.” Treat that as directional evidence about the damper, not as a GT4 result.

The KW ESC Module: The $583.95 Part Nobody Mentions

You cannot run passive coilovers on a 718 Cayman GT4 without a PASM cancellation module, and on the KW kit that part is the ESC module at $583.95. PASM adaptive dampers are standard equipment on the GT4, which means the car’s control unit is continuously commanding damper valves. Replace those dampers with passive Clubsports and the ECU keeps trying to talk to hardware that is no longer there, throwing persistent trouble codes and dash warning lights. The KW ESC module shuts down the factory damper regulation and suppresses the resulting fault codes while leaving the rest of the control unit fully functional.

This is not a KW quirk — it is a category-wide requirement. Ohlins sells its own PASM Cancellation Kit for the same car. The practical takeaway is that any “GT4 coilover” price you see quoted online is roughly $584 short of the real hardware number. KW’s module (part KWS68511186) covers the 2020–2023 GT4, the 2022–2023 GT4 RS, and the 2021–2022 Cayman GTS 4.0.

What Does a GT4 Coilover Build Really Cost?

Plan on about $12,478 in KW hardware before a single hour of labor. That is $11,894 for the Clubsport 3-Way kit and $583.95 for the mandatory ESC module. On top of that you owe the car a proper setup, and the setup is not optional if you want the parts to do anything.

The correct sequence is set ride height → corner balance → then align. Corner weighting materially changes the alignment, so aligning first simply wastes the money. Corner balancing must be done with the driver’s weight in the seat (or ballast standing in for it), and it is only possible at all because the coilovers gave you adjustable ride height in the first place. Owners going lower than about 30 mm also commonly add adjustable rear toe links. We do not publish a labor-hours figure for this install because none is manufacturer-published — call our Tampa shop and we will quote it against your car and your setup goals.

718 Cayman GT4 (982) Upgrade Comparison

Here is every 982 GT4 part in this article side by side, so you can see where the suspension money sits against the exhaust and brake options we stock for the same car.

KW Clubsport 3-Way: Pros and Cons

KW Clubsport 3-Way vs Ohlins Road & Track: Which Should You Buy?

Buy the Ohlins Road & Track if the GT4 is a street car that sees a handful of track days a year; buy the KW Clubsport 3-Way if the GT4 is a track car that occasionally drives on the street. The Ohlins R&T (part POZ MR90S1, which covers both the 981 and 982 GT4) is single-adjustable with a DFV passive valve and sells in the $4,358–$4,800 range — it is the volume seller for a reason, and it rides close to OEM. Bilstein’s B16 PSS10 sits lower still around $2,200 as a 10-stage, coupled-adjustment entry coilover for the 718 chassis.

The KW Clubsport 3-Way is roughly 2.5 times the price of the Ohlins, and the only thing that justifies that delta is the third adjuster. If you are never going to separate low-speed from high-speed compression — if you are not corner-balancing, not chasing curb compliance, not re-valving for a specific circuit — you are buying capability you will not use. That is a genuinely reasonable outcome for most GT4 owners, and we would rather tell you now than sell you the wrong $12,000 part.

What Is a Good Track Alignment for a 718 Cayman GT4?

Owner-reported track alignments for the 718 Cayman GT4 cluster around −2.5° to −2.8° of front camber and −2.15° to −2.5° of rear camber. Published owner setups on Rennlist and Porsche club forums include front −2.7° camber with zero toe paired with rear −2.2° camber and about 4.4 mm of total rear toe, and a milder front −2.5° / rear −2.15°. Serious track users push toward −2.8° front and −2.5° rear specifically to stop the outside shoulder of the tire from rolling over.

These are owner-reported ranges, not a Porsche or KW specification — treat them as a starting point that your corner-balance and alignment shop refines against your tires, your circuit, and your driving. Note also that the adjustable anti-roll bar end links the GT4 ships with are there to help corner-balance the car; they do not change roll stiffness.

Best Complementary Upgrades for the 982 GT4

Suspension is the highest-leverage GT4 upgrade, but the same car has a short list of genuinely worthwhile bolt-ons in our catalog. The Akrapovic Slip-On Race Line is the halo exhaust at $7,848.58 — note that it requires the tail pipe set, sold separately at $1,310.64, so the complete Akrapovic exhaust is a $9,159.22 proposition. AWE’s SwitchPath is the valved alternative at $3,075.00, and it fits PSE-equipped cars only, so confirm your car has the Porsche Sport Exhaust option before ordering.