if you wanna save money and have an almost stock looking bov that you gotta worry about having the right combo of springs/shims in then get the forge. also you gotta be down for it's unique sound. To me, I didnt wanna have to worry about adjusting anything, nor did I wanna chance it with the sound so I got the hks, and I love it and the way it holds boost, sounds, looks, and feels driving around town. Plus, I cant think of anyone going over 30psi on this motor so an hks will last you a long time and be a good BOV for any setup.