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ST Performance Coilover Kit for Audi TT 90031 90830

$807.49 $760.00

Quick Overview

Sku # : ST_Coilovers_TT_KM3
Model (Please see application guide below)
ST Coilovers Kits
Looking for that perfect balance between comfort and performance, styling, and handling without sacrificing ride quality and comfort? Your search is over, from the company that brought you the KW V1, V2, and V3, we have the perfect ST Coilover to suit your A4 needs. Coilovers are the BEST suspension solution for aftermarket applications, simply because all of the parts are designed to compliment and function perfectly with each other compared to playing the guessing game of getting different springs and shocks separately.

ST Variant 1
When it comes to choosing the perfect coilover, try not to be cheap, and do it right the first time; choose ST height adjustable Variant 1 Coilover Kits. Fully threaded shock bodies will enable you to customize your ride height for that aggressive stance that you've always wanted, without sacrificing safety, functionality, or driving performance. Each application is expertly engineered, designed, and tested under road and off course track conditions in Europe to ensure it achieves and exceeds the Highest Quality Standards of the German TÜV.

ST Variant 1 Advantages
  • Matched damper and springs rates
  • Corrosion resistant zinc plated threaded strut housing
  • All around height adjustability
  • Integrated elastomeric bump stop
  • Self centering dust boot for insured durability


Galvanized Steel
Coming from the makers of KW suspension systems, the only main difference between the ST Variant 1 and KW Variant 1 is the steel they use. While KW uses Stainless Steel for their shock housing, ST uses Galvanized Steel. However, this does not mean there is a drop in quality, durability, or appearance. Although coilovers that use galvanized steel are more prone to corrosion due to environmental influences (i.e. mixture of salt water); those in the lower states: California, Texas, Florida, Nevada, etc. don't have to worry about corrosion. Those living in the mid-US to Northern States where it snows still don't have to worry much as long as the car isn't driven in heavy snow conditions when salt is used on roads. If you do manage to drive in heavily salted roads, all the shock bodies have corrosion resistant Zinc plating that protects the steel from road grime, rocks and salts.

About Coilovers
A coilover suspension system basically is a shock absorber coupled with a spring that complement each other perfectly to provide the best possible ride quality, performance and as well as adjustability.  The difference between a regular shock and spring combo and a coil-over system is that the coil-overs are always adjustable to a certain extent. Installing coil-overs is advantageous for your car because they reduce unsprung mass, increase suspension travel, and allows the car to be more corner balanced.

Application Guide

Vehicle Model Year Note Approx. Front Lowering (in.) Approx. Rear Lowering (in.) Part Number
Audi Mk1 TT Roadster FWD 98-06 *4, 42, 49, 112 1.2 - 2.0 1.2 - 2.0 90031
Audi Mk1 TT Roadster Quattro 98-06 *42, 49, 164 1.2 - 2.0 1.2 - 2.0 90830

*4 - Excluding all models with 4-Wheel Drive.
*11 - This excludes models with the automatic level control and/or the automatic level system that can be adjusted in accordance.

*28 - Only for models up to chassis number 8D*X 199999
*42 -  In combination with factory wheels and tires, wheel spacers may be needed.
*49 - Height adjustment at the rear axle over special bushing.
*112 - Because of the special design of this specific car, the damper adjustment can only be made when the damper is not mounted. By modifying the interior trim, this problem can be avoided.
*164 - Rear axle shock absorbers are not adjustable in damping.  Sport shock absorbers with a harder damping characteristic will be supplied.

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