AWE - Save Up to 15%
  See more parts for your Subaru STI

TEIN SUPER RACING Coilover Kit Subaru Impreza WRX STI GRB 4WD 2007.10-2014.08 JPN

$3,710.00 Sale:$3,524.50


Model #DSS78-81LS1

Free Shipping

Shopper Award

Developed from actual competition, TEIN was able to create a fully adjustable damper that can be easily tuned for any track and weather conditions. Super Racing Dampers utilize a full-length adjustment system to allow shock length and spring pre-load to be adjusted independently. Separate 16 - way adjustments for compression and rebound damping enable the user to fine tune for any situation. TEIN has incorporated both camber and caster adjustment into the front pillow ball upper mounts for strut type vehicles. External reservoirs on SA type dampers allow for added oil capacity. Spring rates and shock valving were derived from many years of motorsports support, to provide the ultimate damper for competition. Designed and tested for circuit use by advanced and professional drivers who are seeking complete damper tuning capability.

Front Specifications:

  • Damping Force Adjustment: Y
  • Full-Length Ride-Height Adjustable: Y
  • Upper Mount: CAMBER CASTER ADJ
  • Recommended Ride Height (mm): -45
  • Recommended Ride Height (inch): -1.8
  • Ride Height Adjustable Range:
    • Max Low (mm): -90
    • Max Low (inch): -3.5
    • Max High (mm): 0
    • Max High (inch): 0
    • Recommended Low (mm): -55
    • Recommended Low (inch): -2.2
    • Recommended High (mm): -35
    • Recommended High (inch): -1.4
  • Spring
    • Rate (kgf/mm): 10
    • Rate (lbs/in): 560
    • SP PART#RS100-E1175
    • Free Length (mm): 175
    • I.D. (mm): ID65
Rear Specifications:
  • Damping Force Adjustment: Y
  • Full-Length Ride-Height Adjustable: Y
  • Upper Mount: P/U
  • Recommended Ride Height (mm): -35
  • Recommended Ride Height (inch): -1.4
  • Ride Height Adjustable Range:
    • Max Low (mm): -50
    • Max Low (inch): -2
    • Max High (mm): 0
    • Max High (inch): 0
    • Recommended Low (mm): -45
    • Recommended Low (inch): -1.8
    • Recommended High (mm): -25
    • Recommended High (inch): -1
  • Spring:
    • Rate (kgf/mm): 10
    • Rate (lbs/in): 560
    • SP PART#RS100-E1175
    • Free Length (mm): 175
    • I.D. (mm): ID65
  • Year: 2007.10-2014.08
  • Make: Subaru
  • Model: Impreza
  • Trim: WRx STI
  • Drivetrain: 4WD
  • Chassis: GRB
  • Motor Size: 2000
  • Vehicle Region: JPN
  • Recommended Spring: High Load Type. Ride Height Drop Shown Is Recommended Value For Circuit Use And Might Not Meet Vehicle Safety Regulations.
  • Steel Construction
  • Mono Tube internal construction
  • Inverted design for strut type front and rear
  • Ride Height adjustable via threaded body and spring seats
  • 16 ? 16 way adjustable dampers, compression and rebound separately adjustable
  • Pillow ball upper mounts for increased steering feel
  • Upper and lower camber adjustment on front for strut type vehicles
  • Caster adjustment on front for strut type vehicles
  • Dual EDFC (Electronic Damping Force Controller) compatible
  • Powder coated brackets with Teflon coated shock body for heavy duty rust prevention
Kit Includes:
  • Adjustable Shock Absorber ? 4
  • Bump Rubber ? 4
  • Hook Spanner ? 2
  • Some applications include helper springs
  • Dust Cover ? 4
  • Pillow ball Upper Mount ? 4
  • Instruction Manual ? 1
  • Lower Spring Seat ? 4
  • Sticker Sheet ? 1
  • Seat Lock ? 12

Images are for marketing purposes only. Actual item may vary

Proposition 65

/!\ warningWARNING: Cancer and Reproductive Harm

Vehicle Engine Notes
Subaru STI

Why Choose Tein Suspension?

Although there’s a massive amount of suspension companies out there, few of them have the history or reputation of Tein. With a wide range of different products at different price points, Tein offers suspension components for nearly every automotive application out there.

It all started in the early 1980s, when two rally racers couldn’t find shock absorbers which could withstand their aggressive driving techniques. After tossing the idea around, the two racers created their own suspension company, which is how Tein was born.

Tein’s shock absorbers quickly became popular with rally racers from grass roots to high-level WRC cars through the 1980s and 1990s. In 1995, Japan eliminated some of their strict laws which prohibited the use of suspension modifications and the demand for Tein quickly grew to new levels.

Twin Tube vs Mono Tube

Looking at the outside of a damper or coilover might make you think they’re all the same, but what’s inside them varies massively. There are two types of dampers which are used in the automotive industry: twin tube and mono tube. Some aftermarket suspension companies push the idea that mono tube dampers are the absolute best, but that’s really not entirely true.

While mono tube dampers are used in the majority of race cars, they simply don’t provide the same ride quality that a twin tube damper can provide.

A twin-tube design can be found on the majority of OEM shocks, low-end coilovers, and even mid-level coilovers designed for street use. It’s not a bad design by any means. Twin-tube uses an inner and outer tube. The inner tube holds the piston shaft, valve, and oil. The outer tube holds damper oil and nitrogen gas. The design allows for more suspension stroke without increasing the height of the body, providing better ride quality.

Depending on which Tein coilover you pick, it could either use a twin tube or mono tube damper. Tein is one of the few aftermarket suspension manufacturers who offers both twin tube and mono dampers, because twin tube dampers are simply more difficult to manufacture.

Should I Buy Coilovers or Lowering Springs?

While Tein’s coilovers are great and many of them are very affordable, some enthusiasts simply want something cheaper. Not everyone wants all the capabilities and benefits of a full coilover, sometimes you just want the lowered stance without everything else.

Lowering springs are typically physically smaller than OEM springs and utilize higher spring rates. With stiffer rates, total body movement is reduced which eliminates excessive weight transfer and poor handling characteristics. The lower ride height also lowers the center of gravity of the entire vehicle which further reduces body movement, especially while cornering.

Since many lowering springs use higher spring rates than the OEM units, the dampers have to work extra hard to keep the car under control. Although you may not be able to tell on the road, your OEM dampers may not be able to control your car with the higher spring rates. This problem is unique per vehicle, but it can occur with almost any car.

Coilovers theoretically fix the problem listed above by combining a higher rate spring with a damper designed to work with that spring correctly; however, that doesn’t mean all coilovers are better than the OEM suspension.

Tein coilovers are carefully designed to provide the best balance of damping, spring rate, ride quality, suspension stroke, and pricing. Many of their coilovers feature height and damping adjustment, which allows you to dial in your suspension for your exact needs. If you plan on attending any track events or just want the best performance possible, a set of coilovers is a much better purchase than lowering springs.

Spring and Damping Adjustability

The majority of Tein’s coilovers offer a significant amount of adjustability. This adjustment will typically come in the form of an adjustable collar which threads up or down the body and either compresses or decompressed the spring. This adjustment effects spring pre-load which increases the amount of force needed to compress the coilovers, but does not increase spring rate.

Many of their coilovers also offer ride height adjustment. Being able to adjust ride height and spring pre-load independently allows for much greater suspension tuning and ultimately allows for the best handling possible when properly tuned by a qualified professional.

Should You Choose Tein?

With a wide range of products at very affordable prices, Tein offers suspension components for the majority of automotive applications. All their products are very high quality and offer fantastic build quality, plus a limited warranty!

Check out these other great products