IAG Performance has partnered with Fortune Auto to deliver the IAG Spec Street Series Coilovers by Fortune Auto, engineered specifically for the 2002–2007 Subaru WRX and 2004 Subaru STI. These single-adjustable coilovers strike an ideal balance between daily drivability and occasional track use, sharpening handling response without sacrificing ride quality. This complete front and rear coilover system offers a substantial performance upgrade at an exceptional value.
At IAG Performance, our mission is to continually push the limits of automotive performance through real-world testing, extensive research, and countless track days. When we identify a product from a trusted manufacturer like Fortune Auto that meets our standards, we refine it further to better suit real driving conditions. Starting with the proven Fortune Auto 500 platform, the IAG Spec Street Series Coilovers incorporate carefully selected upgrades that improve road feel, suspension control, and overall balance. The result is a coilover system purpose-built to perform on the street while remaining fully capable at the track.
Key enhancements focus on increasing usable suspension travel and improving ride comfort without compromising performance. The front dampers feature an additional 10mm of shock stroke compared to standard Fortune Auto coilovers, allowing the suspension to work more effectively over uneven surfaces. A softer 7kg/mm front spring promotes improved weight transfer under braking and acceleration, enhancing grip and stability. An 8-inch front spring further increases travel and reduces the likelihood of bottoming out, while the extended 10mm front top hats recover suspension travel commonly lost when lowering the vehicle.
To fine-tune the driving experience, the IAG Spec Street Series Coilovers offer 24 clicks of combined rebound and compression adjustment. This allows drivers to quickly transition from a firm, track-oriented setup to a compliant and comfortable street ride, making these coilovers equally at home on daily commutes and weekend track sessions.
The front suspension in the IAG Spec Street Series Coilovers By Fortune Auto are engineered to the following specifications:
- 127mm front shock stroke
- Custom shock valving
- 270mm shock body
- 8 inch spring length
- 7kg/mm spring rate
The rear suspension in the IAG Spec Street Series Coilovers By Fortune Auto are engineered to the following specifications:
- 127mm rear shock stroke
- Custom shock valving
- 300mm shock body
- 9 inch spring length
- 6kg/mm spring rate
- Street Series Coilovers are equipped with 10mm of extended shock travel.
Installation Instructions