ST Suspensions ST X Coilover Kit for Select 2005-2015 Audi and Volkswagen (2.0T) - 13210039

Fits select 2005-2015 Audi A3, TT, TT Quattro, TT RS, and TTS, along with Volkswagen Golf, GTI, and Jetta (2.0T).

The ST Suspensions ST X Coilover kit is engineered for drivers who demand better cornering performance without sacrificing daily road comfort. Developed in partnership with KW, these coilovers feature vehicle-specific spring rates and damping profiles to ensure a perfectly balanced ride. The system uses a galvanized zinc-coated steel strut housing for maximum corrosion resistance, paired with a hardened chrome piston rod and a multi-layered pressure-resistant sealing package for long-term durability.

For easy height adjustments, the kit utilizes a friction-optimized polyamide composite spring perch with a stainless steel insert. This design prevents the common issue of oxidation between the strut and the perch, ensuring the threads remain clean and adjustable for years to come. Every damper is tested on a shock dyno in Germany to verify performance before leaving the factory.

• Manufactured by KW in Fichtenberg, Germany
• Galvanized steel strut housings for superior corrosion protection
• Hardened chrome piston rods with integrated dust protection systems
• Friction-optimized polyamide composite spring perches with stainless steel inserts
• Trapezoidal thread pitch for seamless height adjustment
• Dynamic elastomer bump stops for improved ride quality at the limit
• Manufacturer Part Number: 13210039
• 5-Year Limited Warranty (Unlimited Mileage)