Quote:
Originally Posted by Scapegoat
these are listed as 8k/5k. honestly, i'm not sure what that means 
i just know my car needs better components and these cost the same as lowering springs + shocks and are fully adjustable |
Those would be your spring rates. The amount of force it takes to compress your spring. Higher spring rate = stiffer ride. The standard BC's for the WRX come with 8k / 6k, pretty close to what you're getting for your mustang. BC lets you choose your spring rates when you purchase the coilovers so I opted for the next step up since its a weekender.