SKU: 7834796359

HKS Max 4 GT-A GDB (A-D) Full Kit

Sale price$1080.00 Regular price$1200.00
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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15

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Description

HKS Max 4 GT-A GDB (A-D) Full KitSingle Tube Damper Design Mono tube dampers allow for more accurate and stable control and adjustment of dampening. Lower ride height and center of gravity gives a more stable ride. Dust Boot Protect the shaft from the flying stones. PNE Coating Using this special surface coating provides 5 times better durability over standard galvanising. This prevents build up around the threads of the adjustment areas allowing for easier height adjustment. M Shaft

Single Tube Damper Design

  • Mono tube dampers allow for more accurate and stable control and adjustment of dampening. Lower ride height and center of gravity gives a more stable ride.

Dust Boot

  • Protect the shaft from the flying stones.

PNE Coating

  • Using this special surface coating provides 5 times better durability over standard galvanising. This prevents build-up around the threads of the adjustment areas allowing for easier height adjustment.

M Shaft (?46 normal type)

  • With the new design of cylinder shaft since the HIPERMAX M-1, MAX IV increased the cylinder shaft size to have a firm damping even at a little stroke range by optimizing the oil pressure characteristic. We mainly adopted this to the rear damper that can have a better driving experience.

Adopted Pillow Ball Upper Mount

  • For more accurate and sharp steering.

New Design Needle

  • Newly designed needle has been used to revise the very low speed and middle and high speed dampening which is key to a comfort ride.

Reduction of Unsprung Weight

  • In order to reduce unsprung weight, bracket, ride height adjusters and lock nuts are made from aluminium. (Not for all vehicles)

30 Step Damping Force Adjustment

  • 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 - -
Height adjustable lower bracket ? ?
Upper mount Spherical bearing ????
Inverted/Normal type Inverted Inverted
Damper/Spring layout Coilover Coilover
Spring rate change at factory Possible Possible
Damping force adjustment with wire - -
Helper spring
(Spring rate N/mm)
?(4.7) ?(19.8)

  

Kit Information

  • Spring of Full Kit
  F R
Spring rate N/mm(kgf/mm) 59+19 ( 6+2=8 ) 38+19 ( 4+2=6 )
Free height (mm) 250 250
Spring type Straight Straight Barrel type
Recommended range to change spring rate N/mm(kgf/mm) ±20 ( 2 ) ?20 ( 2 )
  • Specification of damper
  F R
Damping force (Rebound/Damping)N* 820 / 400 400 / 220
Default position of dial 15 15
Remaining damper stroke (Rebound/Damping)mm 70/56(6) 78/91(11)
  • Setting Data
  F R
Default Test Drivable limit
High *
Drivable limit
Low *
Default Test Drivable limit
High *
Drivable limit
Low *
Length of
case (mm)
294 ? 336 285 343 ? 369 340
Spring
Set length(mm)
282 ? ? ? 297 ? ? 295
Length to ride hight
adjuster (mm)
22 ? 64 13 122 ? 148 117
Lever ratio 1.10 1.08
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 7834796359

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Kyle Reviews
Massapequa, US
★★★★★ 1
Absolute horrible quality
Color: Black, Size: Medium
Do not purchase this track suit even if its on sale. The fabric material is so cheap, it feels like a tacky uncomfortable plastic bottle that's been stretched out over your body. The stitching feels very off and the thickness is somehow too bulky and looks baggy and at the same time feels too tight. Do yourself a favor and avoid, I'm returning this product.
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Reviewed in the United States on October 1, 2025
M
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Mrs. O
Los Angeles, US
★★★★★ 5
Nice fit jogger set
My husband is a midsized guy in weight and also an old school guy he don't like the skinny leg pants so these were perfect I ordered more than one. He says they are very comfortable.
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Reviewed in the United States on November 12, 2025
A
Verified Purchase
Amazon Customer
Bozeman, US
★★★★★ 5
Beautiful Track suit
Great product and great price
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Reviewed in the United States on December 30, 2025
M
Verified Purchase
Moneen Dudgeon
Omaha, US
★★★★★ 5
Perfect for needs
Color: Khaki, Size: Small
Looks nice. Great fabric
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Reviewed in the United States on May 13, 2026
A
Verified Purchase
Ad M
Port Orchard, US
★★★★★ 4
Comfortable and Slick
Color: Grey, Size: X-Large
The track suit has been my tai chi workout go to. The fabric is light and non constrictive so I can move effortlessly. The material is soft and feels nice. Does not get too wrinkly when folded. The color is nice. Top fits nicely, true to size (6’ and 190 lbs). The bottoms are a bit baggy though but my bum is flat, so can complain. I think next time I would purchase separate pieces and go with XL top and L bottom. Perhaps mix the colors too so I don’t look like an orderly on break! I will caution on wearing this type of material over spandex or slippery underwear. I was walking my three large dogs and they got tangled and the leash snagged and pulled down my pants exposing my underwear to the world. Luckily, I had clean undies with no rips, although no one was around the trail we were on! This is my first Coofandy purchase and I would definitely purchase again.
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Reviewed in the United States on April 29, 2026

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