H&R 15-21 Subaru STi Sport Spring 1984-mazda-rx-7-esi3117150 19" and up

19" and up

It provides the ultimate in precision bias adjustment

The Front Sway bar sets include front bar bushings

The restrictive factory air filter and air intake tubing are replaced by the K&N Typhoon air intake which is designed to dramatically reduce air flow restriction as it smoothes and straightens air flow

and we were able to produce power gains of up to 8 HP and 12 lb

H&R 15-21 Subaru STi Sport Spring 1984-mazda-rx-7-esi3117150 19" and upSport Spring kits are H&R's number one selling product. Enhance the look of your vehicle with a reduced fender well gap. H&R'sport Springs lower the vehicle's center of gravity and reduce body roll for better handling. The progressive spring rate design provides superb ride quality and comfort. A lower wind resistance signature will make the vehicle more streamlined and improve gas mileage. If you are only looking to improve one part of your vehicle's