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HKS

HKS Max 4 SP S15 Full Kit

HKS Max 4 SP S15 Full Kit

Regular price $1,750.00 USD
Regular price $1,750.00 USD Sale price $1,750.00 USD
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  • Tracking emailed when it ships
  • Free fitment check before you order

HKS Max 4 SP S15 Full Kit. A coilover kit replaces the factory spring and shock with an adjustable assembly, giving you control over stance and, on adjustable kits, damping.

Quick facts

  • Brand: HKS
  • SKU: 0JN12

Details

  • 30 levels of dampening adjustment allow fine tune adjustment for street, circuit winding roads, highway, or the weight of the vehicle.
  • Specification: FRONT: REAR
  • Damping force adjustment: 30 steps / 30 steps
  • Base valve: - /
  • Upper mount: Spherical bearing / Spherical bearing
  • Inverted/Normal type: Inverted / Normal
  • Damper/Spring layout: Coilover / Coilover
  • Spring rate change at factory: Possible / Possible
  • Helper spring (Spring rate N/mm): - / ? ( 19.8 )
  • Spring rate N/mm(kgf/mm): 78 ( 8 ) / 49 ( 5 )
  • Free height (mm): 200 / 250
  • Spring type: Straight / Straight
  • Default position of dial: 15 / 15
  • Default: Test / Drivable limit High * / Drivable limit Low * / Default / Test / Drivable limit High * / Drivable limit Low *
  • Length of case (mm): 229 / 222 / 254 / 212 / 483 / 476 / 519 / 469
  • Spring Set length(mm): 196 / 196 / 196 / 196 / 321 / 321 / 321 / 324
  • Length to ride hight adjuster (mm): 48 / 41 / 73 / 31 / 163 / 156 / 199 / 146
  • Lever ratio: 1.14 / 1.00

Good to know

  • In order to reduce unsprung weight, bracket, ride height adjusters and lock nuts are made from aluminium. (Not for all vehicles)
  • Recommended range to change spring rate N/mm(kgf/mm): ±20 ( 2 ) / ±20 ( 2 )

Tip: Set your final ride height, then get the car aligned.

View full details

About this coilover kit

If you want more control over stance and handling than lowering springs give you, a coilover kit like this HKS set is the usual next step.

Fitment notes

  • Factory adaptive dampers: if your car has electronic or adaptive suspension, check whether the listing covers it or needs a cancellation kit.
  • Specs, lead time and warranty come from HKS and can change. The details above this guide are the latest we have.

Not sure it fits? Message us your car's details and we'll double-check fitment with the supplier before you buy.

Ask about fitment

What else to plan for

  • An alignment. Any change in ride height changes camber and toe. Set your final height first, then align.
  • Camber and toe adjustment. Bigger drops often need adjustable arms or camber plates to align properly. See alignment and camber kits.
  • Wheel and tire clearance. Check clearance at full lock and full compression, especially with wider wheels. Our ride height and wheel fitment calculator shows how much drop and offset change you are planning.
  • The right spring rate. Compare the rates listed here with what our spring rate calculator suggests for your car's weight and use.

More for your car: All Coilovers

Questions

Will this fit my car?
Check the product title and details for the vehicles it is listed for. If you are not sure, contact us with your year, make, model and trim and we will confirm fitment with the supplier before you order.
Do I need an alignment after installing coilovers?
Yes. Changing ride height changes camber and toe. Set your final height, let the suspension settle, then get the car aligned.
How low can I go?
It depends on the adjustment range the brand lists, your wheels and tires, and how you use the car. Most cars that are driven hard work best with a modest drop that leaves enough suspension travel.
Where do specs and warranty details come from?
From HKS. We sell parts from several brands and suppliers, and each one sets its own specs, lead times and warranty terms. The product details above are the latest we have.
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