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HKS HIPERMAX S Coilover Kit for RV37 Infiniti Q50 [80330-AN017]

Name: HKS HIPERMAX S Coilover Kit for RV37 Infiniti Q50 [80330-AN017]
SKU: 80330-AN017
Price: 2180.00 USD
Availability: InStock

SKU: 80330-AN017

$2,180.00

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OEM-quality fitment for precise installation.

Sourced from certified, top-tier automotive brands.

HKS HIPERMAX S Coilover Kit for RV37 Infiniti Q50

HKS’s Coilover Kit for RV37 Infiniti Q50 puts the current S generation under the twin-turbo VR30 sedan. A single-tube damper keeps gas and oil in separate chambers, which allows a larger piston and a steadier damping force. The front is an inverted strut, so lateral load spreads across a wider area and the heavy part of the damper moves to the body side. Thirty levels of adjustment run through the WR Needle, whose reshaped relief channel makes each click count and pushes the soft end further than HKS managed before. HKS supplies the Coilover Kit for RV37 as a complete four-corner set rather than a front or rear pair.

Design and Performance

Dual PVS is what changes how the car feels on a real road. The preload valve system cuts high-speed damping while keeping body movement in check, so the shaft extends more readily and the tire stays in contact over a broken surface, while fast compression still builds force quickly enough to absorb the hit. Working with it is the Advanced Bump Rubber, longer and softer than a conventional stop, which makes contact earlier in the stroke and loads gradually instead of arriving as a wall at the end of the travel. What HKS was chasing is a suspension that rides rather than crashes.

Construction

The damper bodies are length adjustable, so ride height changes without eating into the stroke. PNE coating replaces standard galvanising and HKS rates it at five times the corrosion durability, which matters on a car driven through winter. The front upper mount is the strengthened rubber design rather than a spherical bearing, revised in section and compound to firm up the mount over stock while still absorbing small vibrations. Aluminium brackets and a machined, chamfered top plate finish it, and HKS handles spec changes and overhauls when the kit needs revalving later.

Features

Single-tube damper with separated gas and oil chambers and a large-diameter piston
30 levels of damping adjustment through the WR Needle mechanism, with a usable soft end for street driving
Dual PVS preload valve system, cutting high-speed damping while holding body movement in check
Advanced Bump Rubber that loads progressively rather than ending the stroke abruptly
Inverted front strut, moving damper mass to the body side and spreading lateral load
PNE coating, rated at five times the corrosion durability of standard galvanising
Three-year HKS warranty, with spec change and overhaul service available

Applications

Infiniti Q50: RV37 | 2016-2025 | VR30DDTT

Notes

The front upper mounts are the strengthened rubber type; this Coilover Kit for RV37 does not include pillow ball mounts or mount-based camber adjustment
Supplied as a full kit for all four corners
California Prop 65 warning applies to this product
Spec changes and overhauls are carried out by HKS rather than a third party
Browse the full HKS range on Bulletproof Automotive

Frequently Asked Questions

How many levels of damping adjustment does the Coilover Kit for RV37 have? Thirty. HKS uses its WR Needle mechanism, which widens the oil relief channel so each of the thirty clicks makes a clearer difference than the previous range managed. The reshaped needle also extends the soft end of the adjustment, which is what makes the kit usable on a street car rather than only on track.
Does this kit use pillow ball upper mounts? No. HKS fits its strengthened rubber upper mount at the front of this kit, revised in cross section and material to tighten the mount over stock while still absorbing small body vibrations. There is no spherical bearing and no camber adjustment built into the mount, so alignment is set with the factory adjustment the car already has.
Is ride height adjustable without giving up suspension travel? Yes. The damper bodies are length adjustable, so ride height is set by changing body length rather than by winding a spring seat down into the available stroke. That keeps suspension travel intact at a lowered ride height, which is the practical difference between a full coilover kit and a spring and seat arrangement.
Why does HKS warranty the HIPERMAX S for three years? HKS moved the range from one year to three after reworking the internal structure and bringing manufacturing in house. Bench and road durability testing gave the correlation needed to extend the term. Three years is unusual on a sports coilover and is one reason the S range exists in its current form.
Can the Coilover Kit for RV37 be revalved or rebuilt later? Yes. HKS offers a spec change service that alters the damping specification of the Coilover Kit for RV37, and a full overhaul for kits that have covered serious mileage. Both run through HKS rather than a third party, which is worth knowing on a car that gets driven year round.

About HKS

HKS is a Japanese performance engineering brand founded in 1973 and headquartered in Fujinomiya, Shizuoka, with a long-standing reputation for developing high-quality aftermarket parts and motorsport-proven technology for enthusiast and professional applications. Known for innovations in turbocharging and engine performance, HKS produces a broad range of components including exhaust systems, turbo kits, electronics / engine management, and suspension solutions, with product development heavily influenced by decades of involvement in racing disciplines such as circuit time attack, drag, and drifting.

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We want you to feel confident before making your purchase. Here are a few important details to help you better understand this product and how it fits into your space.

Please review the product dimensions carefully to ensure the right fit for your space
Color may vary slightly due to lighting and screen settings
Materials and finishes are selected for both durability and visual appeal
Some items may require simple assembly upon delivery
Perfect for both everyday use and long-term comfort

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Product Size Guide

Please refer to the general size reference below to better understand how this product may fit into your space. Dimensions may vary slightly depending on the design and materials.

Category	Small	Medium	Large
Decor & Accessories	Up to 10″	10″ – 20″	20″+
Tables	Up to 30″	30″ – 60″	60″+
Seating	1 Seater	2–3 Seater	4+ Seater
Storage Units	Compact	Standard	Large Capacity
Lighting	Small Fixture	Standard Fixture	Large Fixture

Note: For exact product dimensions, please refer to the specifications section above. This guide is intended as a general reference only.

HKS HIPERMAX S Coilover Kit for RV37 Infiniti Q50 [80330-AN017]

$2,180.00 Add to Cart

HKS HIPERMAX S Coilover Kit for RV37 Infiniti Q50 [80330-AN017]