Whiteline Subaru STI VA Grip Series Stage 1 Kit

If you're looking to give your 2015-2021 Subaru WRX STI a significant handling upgrade, the Whiteline Grip Series Stage 1 Kit is a solid entry point. This kit bundles together key suspension components designed to work in harmony, aiming to improve your car's cornering ability and overall feel on the road without sacrificing too much comfort. It's a comprehensive package that addresses body roll and responsiveness right out of the box.

At the heart of this kit are the performance lowering springs. The front springs are rated at 6.1kg/mm (329lb/in) and will lower your STI by about 15mm, while the rear springs come in at 5.8kg/mm (325lb/in) and also provide a 15mm drop. These springs are designed to offer improved performance characteristics while still maintaining a comfortable ride. Complementing the springs are Whiteline's signature adjustable sway bars. You get a 26mm, 2-point adjustable front sway bar and a 22mm, 3-point adjustable rear sway bar. Adjustability here is key, allowing you to fine-tune the balance of your car to your driving style or the conditions. The kit also includes high-quality sway bar links and all the necessary mounting hardware, featuring synthetic elastomer bushings that resist oil and weathering for long-term performance.

Whiteline has paid attention to the details with this kit. The sway bar links have heavy-duty ball joints that can be adjusted to various angles for easier installation and optimal performance. They also incorporate features like internal grease reservoirs for self-lubrication and forged ends for maximum strength. The protective plating and powder coating on metal components are there to resist corrosion and withstand tough conditions. This kit is designed to work with your OEM shocks, ensuring a direct fit and straightforward installation, with an included guide to help you through the process.