i have the apollo racin 23x11x3.5 FMIC and i love it.. the install was pretty easy, and we had to use the extra hoses that george from boost solutions included with the kit to make it fit right. But other then that it wasent hard to install. The 3 core one you can use the bumper support but the 3.5 core you cant. inless you modify it. you will notice a big top end gain with the fmic. the car will pull alot harder from 80-120.