From the brand
Product description
IAG Spec Street Series Coilovers by Fortune Auto
Installation is straightforward and designed to use factory suspension mounting locations and geometry. After installation, perform proper alignment (camber, toe, ride-height) for best results.
The IAG Spec Difference: Where innovation meets unbeatable performance
Through constant research, development, and testing on countless track days, we’ve developed a reputation for innovation. When we find a part we like from a brand we trust, like the Fortune Auto coilovers, we take it a step further to make it even better. The IAG Spec Coilovers are the result of our commitment to perfection. We’ve enhanced key features of the coilovers, improving performance, road feel & overall handling to deliver a coilover system that’s optimized for both street & track use.
Why Choose the IAG-SUS-1003 for Your WRX STI?
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Built specifically for your car’s chassis — optimized performance, no guesswork.
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Adjustable height + damping = you control the ride feel and look.
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Premium build and tuning from trusted brands (IAG Performance + Fortune Auto) focused on Subaru enthusiast performance.
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Enhancement in handling and feel without sacrificing everyday comfort.
Subaru 08-14 STI (Only) Coilover Specs
Front Specs: 127mm front shock stroke, custom shock valving, 270mm shock body, 8 inch spring length, 7kg/mm spring rate.
Rear Specs: 100mm rear shock stroke, custom shock valving, 200mm shock body, 7 inch spring length, 8kg/mm spring rate. Our Street Series Coilovers are equipped with 1” extended top hats.
Custom tuned – Not off the shelf
The enhancements focus on refining suspension travel and improving everyday driving comfort, while still delivering track-worthy results. With an extra 10mm of front shock stroke compared to Fortune Auto’s coilovers, we’ve significantly optimized suspension travel, resulting in a more forgiving & smooth ride. The softer 7kg/mm front spring allows for optimal weight transfer to the front during braking and to the rear during acceleration. Our 8-inch front spring reduces the risk of bottoming out.
Extended rear top hat
The IAG Spec Coilovers By Fortune Auto are equipped with a 1 inch extended top hat, which allows the shock absorbers to travel within their optimal range, even if the vehicle has been lowered. This adjustable coilover kit makes it easy to drop your car to gain the benefits of improved handling, aerodynamics, improved traction and road feel. Incorporating an extended top hat allows the full range of shock stroke, maintains the correct preload, all while avoiding damage to your coilovers.
Lightweight and durable construction
The IAG Spec Street Series Coilovers By Fortune Auto incorporate the use of lightweight and durable T6061 aluminum in the camber plates and spring perches to maximize weight savings without compromising the strength or integrity of the suspension. Additionally, the coilover springs are constructed from an advanced premium alloy of chrome silicone, providing both elasticity and strength, ideal for high-performance applications.
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