Kia Stinger Coilovers vs Springs: 2018-2023 Compared

Kia Stinger coilovers and lowering springs solve the same problem two very different ways: the 2018–2023 Stinger GT is a 4,023 lb grand tourer with a soft, comfort-biased factory tune that lets a 365 hp twin-turbo V6 wallow through corners. Drop it, tighten the damping, and the chassis finally matches the drivetrain. The question is how far you want to go – and how much you want to spend. This guide compares the three real suspension paths NLP Performance sells for the Stinger: KW V3 coilovers, the Eibach Pro-Plus spring-and-sway-bar package, and Eibach Pro-Kit lowering springs.

Why Does the Kia Stinger Need a Suspension Upgrade?

The Kia Stinger needs a suspension upgrade because it is a heavy, powerful fastback tuned from the factory for ride comfort rather than body control. The 2018–2021 Stinger GT makes 365 hp and 376 lb-ft from its 3.3L twin-turbo Lambda II V6 (368 hp for 2022–2023), hits 60 mph in about 4.6 seconds, and tips the scales at up to 4,023 lb in AWD form. That is a lot of mass riding on a soft, long-travel factory setup.

On GT trims, Kia fits a Dynamic Stiffness Damping Control system – electronically adjustable dampers that firm up in Sport mode but never fully cure the nose-dive under braking or the roll through fast transitions. Lowering the car 1–1.6 in drops the center of gravity, reduces fender gap, and lets stiffer spring rates and real damping control settle the chassis. The payoff is flatter cornering, sharper turn-in, and a stance that finally looks the part. The trade-off is choosing the right hardware for how you actually drive.

Coilovers vs Lowering Springs: Which Is Right for Your Stinger?

Choose coilovers if you want adjustable ride height and damping; choose lowering springs if you want a clean drop and better handling on the factory dampers for far less money. Coilovers like the KW V3 replace the entire strut assembly, letting you set exact corner heights and dial rebound and compression to suit street or track. Lowering springs such as the Eibach Pro-Kit reuse your factory dampers and simply lower the car a fixed amount with stiffer, progressive rates.

The middle ground is a spring-and-sway-bar package. The Eibach Pro-Plus kit bundles Pro-Kit springs with front and rear adjustable anti-roll bars, attacking body roll directly – often the single biggest handling complaint on a stock Stinger. Below is how the three paths compare on the specs that decide the purchase.

KW V3 Coilover Kit – Best Overall (Top Pick)

The KW V3 is the best coilover for the Kia Stinger because it separates ride comfort from handling with independent rebound and compression adjustment. You can soften compression for broken Tampa pavement while keeping rebound tight enough to control the Stinger's 4,000 lb mass, then corner-balance the car for track use. The strut bodies are KW's stainless-steel inox-line, which resists corrosion far better than plated coilovers in Florida's salt-air and rain.

Adjustment is genuinely independent: rebound is set by a 16-click dial at the top of each strut, while low-speed compression is set by a separate 12-click valve at the base. Ride-height range for the AWD Stinger is roughly 0.6–1.6 in (15–40 mm) front and 0.6–1.4 in (15–35 mm) rear, so you can go mild for daily driving or aggressive for a low, planted track stance.

Eibach Pro-Plus Kit – Best Value Package

The Eibach Pro-Plus kit is the best value suspension upgrade for the Stinger because it bundles lowering springs and adjustable anti-roll bars into one $963.00 package (a $1,070.00 value). It attacks body roll from two directions at once: progressive Pro-Kit springs lower the car about 1.0 in and raise wheel rate, while a 25 mm front and 19 mm rear anti-roll bar set flatten the chassis in corners. Because it reuses the factory dampers, install is faster and cheaper than a full coilover swap.

Eibach Pro-Kit Springs – Best Budget Drop

The Eibach Pro-Kit is the best budget way to lower a Kia Stinger, dropping the GT 3.3L about 1.4 in front and 1.2 in rear for just $395.00. These are progressive-rate springs that reuse your factory dampers, so they cut fender gap and lower the center of gravity without the cost or install time of coilovers. It is the right pick for owners who want the improved stance and modestly sharper handling of a lowered car and are happy on the OE damping.

The Electronic Damper Problem: Do You Need the KW Cancellation Kit?

Yes – any 2018–2023 Stinger GT with electronically controlled dampers needs the KW Electronic Damping Cancellation Kit when you fit passive coilovers or springs. Removing the OE electronic struts otherwise triggers a suspension warning on the dash, because the ECU expects to see the factory dampers reporting back. KW's CK module simulates those signals so the warning stays off and the car reads as healthy.

Dial In Handling: Eibach Anti-Roll Bars

Adding thicker anti-roll bars is the most cost-effective way to reduce body roll on a lowered Stinger. Eibach offers a 25 mm front bar for $299.00 and a 19 mm adjustable rear bar for $269.00 – the same bars bundled inside the Pro-Plus kit, sold individually here so spring or coilover owners can add them a la carte. The rear bar's multiple mounting positions let you tune understeer or oversteer balance to taste, which pairs especially well with the KW V3's damping adjustment.

Installation and Alignment Notes

Plan on a professional alignment after any Stinger suspension change, and budget the KW cancellation kit into a coilover install on GT cars. A spring-only job like the Eibach Pro-Kit typically takes 3–4 hours; a full KW V3 coilover install runs 4–6 hours and should be corner-balanced for best results. Lowering the car alters camber and toe, so a four-wheel alignment is not optional if you want even tire wear and predictable handling.

At our Tampa, FL shop, our customers running the KW V3 most often report the biggest single improvement is braking stability – the nose-dive that plagues a stock Stinger under hard stops largely disappears once compression damping is dialed in. Spring buyers tell us the Pro-Plus package delivers the best balance of looks, comfort, and reduced roll for the money. Whichever route you choose, confirm your exact trim and whether your car has the electronic dampers before ordering.

Which Kia Stinger Suspension Upgrade Should You Buy?

Buy the KW V3 coilovers if you track your Stinger or want to corner-balance the car and fine-tune both ride height and damping – it is the only option here with everything adjustable, and the $3,724.00 price reflects that capability. Buy the Eibach Pro-Plus kit if you want the best balance of cost, comfort, and cornering: at $963.00 you get progressive lowering springs plus front and rear anti-roll bars, which cover the majority of what a street-driven Stinger GT actually needs. Buy the Eibach Pro-Kit springs if your priority is a clean 1.4 in drop and sharper stance for $395.00 while keeping the factory dampers and ride quality.

There is no wrong answer here – only the right match for your budget and how hard you drive. A weekend canyon carver or track-day regular will get more out of the KW V3's adjustability, while a daily driver who wants a better-looking, better-handling Stinger without a coilover-sized invoice is the ideal Pro-Plus customer. Remember that GT models with electronically controlled dampers should add the $493.95 KW cancellation kit to any passive setup, and every lowered Stinger needs a four-wheel alignment to protect its tires.