Swift springs are made with a proprietary high-strength steel that allows for a narrower spring coil, meaning more suspension travel before coil bind. Swift springs are also lighter than the competing spring.
Each Swift spring set is specifically engineered for the given application.
Fits all 2011-2014 WRX and 2008-2014 STI. Lowers approximately 1.00" front/rear (hatch), or 1.00" front/0.8" rear (sedan).