ACT-V1903SD is a vehicle-specific AST 5100 Street Performance suspension kit. An inverted high-pressure monotube suspension kit with rebound, ride-height and front camber adjustment where applicable.
Manufacturer set description: VW Golf MKVII TM FR NCO (5100 series) including droplinks
Vehicle applications
Match the chassis, model, model year and drivetrain to your car. Contact GSM Performance with the registration or VIN if any detail is uncertain.
| Make | Model | Chassis | Years | Drive | Notes |
|---|---|---|---|---|---|
| Audi | A3 | 8V | 2013–2020 | FWD | 55mm strut |
| Audi | A3 | 8Y | 2019–Present | FWD | 55mm strut |
| Audi | A3 Quattro | 8V | 2013–2020 | AWD | 55mm strut |
| Audi | A3 Quattro | 8Y | 2019–Present | AWD | 55mm strut |
| Audi | RS3 | 8V | 2013–2020 | AWD | 55mm strut |
| Audi | RS3 | 8Y | 2019–Present | AWD | 55mm strut |
| Audi | S3 | 8V | 2013–2020 | AWD | 55mm strut |
| Audi | S3 | 8Y | 2019–Present | AWD | 55mm strut |
| Audi | TT | FV / 8S | 2014–2023 | FWD | 55mm strut |
| Audi | TT Quattro | FV / 8S | 2014–2023 | AWD | 55mm strut |
| Audi | TTRS Quattro | FV / 8S | 2014–2023 | AWD | 55mm strut |
| Audi | TTS Quattro | FV / 8S | 2014–2023 | AWD | 55mm strut |
| Seat | Leon | 5F | 2012–2020 | FWD | 55mm strut |
| Seat | Leon Cupra | 5F | 2012–2020 | FWD | 55mm strut |
| Seat | Leon Cupra R | 5F | 2012–2020 | FWD | 55mm strut |
| VW | Golf Mk7 (GTI/R) | 5G | 2013–2020 | AWD | 55mm strut |
| VW | Golf Mk7 (GTI/R) | 5G | 2013–2020 | FWD | 55mm strut |
| VW | Golf Mk8 (GTI/R) | CD1 | 2019–Present | AWD | 55mm strut |
| VW | Golf Mk8 (GTI/R) | CD1 | 2019–Present | FWD | 55mm strut |
Application notes
- Body needs to be modified when front top mounts are used
Quick-disconnect options
- Front: Quick disconnect coupling front
Droplink references
- Front: DLA-12-233-251
Setup and installation
Spring rates and mounting parts are selected for the application. Have the kit installed and aligned by a suspension specialist. Check wheel, tyre and body clearance through the full steering and suspension travel, and follow the instructions supplied with the kit.
Ordering and lead time
This kit is made to order. The supplier currently advises an approximate four-week lead time, but this can change. Contact GSM Performance before booking installation if timing is critical.
Product image
The official manufacturer image represents this suspension family, not this exact vehicle-specific part number. Component shapes, mounts, spring layout and supplied contents can differ by application.
Current product-family information: AST x MOTON.




