TheJohnny<SCRIPT type=text/javascript> vbmenu_register("postmenu_778192", true); </SCRIPT> - we generally suggest increase the safety margin by going with the FMIC first before going with the exhaust. However, at stock boost levels, and if you had to pick between one of the 2, then the exhaust will make more power.
You will be easily over 200whp with our CAI, FMIC & Full Turbo-back exhaust @ stock boost levels though. They all work in conjunction with each other to optimize the efficiency of the car. After the point at which you have these 3 pieces, increasing each 1psi in boost will be almost equivalent to increase the stock MSP boost by over intervals of 5psi. (in terms of flow)