ST XTA Plus 3 Coilover Kit Infinity G35 Coupe 3.5L / Nissan 350z Coupe (Z33) 3.5L

The XTA plus 3 coilover kit gives your car maximum performance for the road and the tools you need for any challenge. From the factory, the XTA plus 3 coilover kit is equipped with KW dampers that are adjustable in high-speed and low- speed compression as well as adjustable rebound damping. With 24 clicks of adjustment for each, high-speed and low-speed compression damping and 18 clicks of rebound adjustment, your suspension knows no limits. It doesn't matter if you bolt in an aftermarket roll cage, weld in a cage, upgrade to spherical bushing or changed wheel loads - the XTA plus 3 coilover has what it takes to keep your car dialed! Of course, the XTA plus 3 also includes a parts approval certificate, race springs and aluminium unibal top mounts. Easy lowering adjustment: Like all ST coilovers the ride height adjustment is made via seamless thread on the galvanized strut housing. This even allows the ride height to be adjusted even when the kit is installed by adjustubg the spring perch higher or lower! NOTE: The lowering of each vehicle differs greatly with ST XTA plus 3 coilovers due to the type of construction. KW Engineering: Exclusive for ST suspension. The high-quality ST XTA plus 3 coilover is based on the twin-tube damping principle of low friction combined with pressure-resistant damper housings. Manufactured directly at KW, a mono block guide and seal package reduces the friction of the damper as well as protecting it against corrosion and dirt. Each galvanized strut is sealed multiple times to ensure maximum longevity in ALL weather conditions.

Additional Information

The most versatile ST coilover kit ever built. Seamless ride height adjustability, aluminum unibal top mounts, 24 clicks of low-speed and high-speed compression adjustability, 18 clicks of rebound adjustability put you in absolute control!

Application Summary

2004-2008 Nissan 350Z Convertible (Z33) 3.5i (V6)

Part Type

Coilover Adjustable Spring Lowering Kit

• 5 Year Limited Warranty - Unlimited Mileage
• Aluminum unibal top mounts improve steering response and feedback while allowing you to dial in your camber when applicable.
• Composite spring perch made from wear-resistant, friction-optimized polyamide composite with an embedded stainless-steel insert. The polyamide composite prevents oxidation while the stainless-steel insert maximizes strength.
• Elastomer Bump stop with integrated dust protection system prevents water and dirt particles reaching the piston rod and seals. The highly resilient bump stops act as dynamic load limiters while maintaining ride quality and durability.
• From the factory, the XTA plus 3 coilover kit is equipped with KW dampers that are adjustable in high- and lowspeed compression as well as adjustable rebound damping.
• Galvanized steel housing for improved resistance to corrosion.
• Linear race spring system provides a consistent response while driving and makes it easy to swap rates to further personalize your setup.
• Made in Germany
• Seamless Ride Height Adjustment - ST's composite spring perch and unique trapezoidal thread pitch make ride height adjustability a breeze so you can dial in your preferred look.
• ST coilovers are built by hand by the experts at KW in Fichtenberg, Germany. Each damper is tested on a shock dyno to verify it's making the proper forces before being put into the ST box.

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Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

Coilover Kit, ST XTA Plus 3, Front/Rear, Twin Tube, Adjustable, Yellow Spring, Infiniti, Nissan, Kit

ST Suspensions XTA Plus 3 coilover kits give your car maximum performance for the road and the tools you need for any challenge. From the factory, these kits are equipped with KW dampers that are adjustable in high- and low-speed compression, as well as adjustable rebound damping. With 24 clicks of adjustment for each, high-speed and low-speed compression damping and 18 clicks of rebound adjustment, your suspension knows no limits. It doesn't matter if you bolt in an aftermarket roll cage, weld in a cage, modification to PU bushings upgrade to spherical bushing or changed wheel loads—XTA Plus 3 coilovers have what it takes to keep your car dialed! Of course, the XTA Plus 3 also includes a parts approval certificate, race springs, and aluminum unibal top mounts. Order the model recommended for your vehicle.
• Easy lowering adjustment: Like all ST coilovers, the lowering adjustment is made via a continuous thread on the galvanized strut. This allows the lowering to be made even when the kit is installed by turning the spring plate higher or lower. NOTE: The lowering of each vehicle differs greatly with ST XTA Plus 3 coilovers due to the type of construction.
• KW Engineering, exclusive for ST suspension: The high-quality ST XTA Plus 3 coilover is based on the twin-tube damping principle of low friction combined with pressure-resistant damper housings. Manufactured directly at KW, a mono block guide and seal package reduces the friction of the damper, as well as protecting it against corrosion and dirt. Each galvanized strut is sealed multiple times to ensure maximum longevity in ALL weather conditions.

Features:
• Latest damping technology for maximum longevity
• Reduced system friction for effective damping adjustment
• Individual lowering within the tested adjustment range
• Front and rear axle (when possible) with thread adjustment
• Galvanized coilover struts with additional coating for an optimized corrosion protection
• Complete solution with adjustable spring plate, race spring system and bumpers with dust protection
• Aluminum adjustable uniball top mounts (when possible)
• Scaled camber adjustment (optionally also caster), when possible
• 3-way adjustable dampers:
• 18 clicks low speed rebound damping
• 24 clicks low speed compression damping
• 24 clicks high speed compression damping