Get yourself a hks/tuning developments actuator and turn the boost up to .8bar and itll fly bud. I might have one actually pm me sure if your interested. runnin .8bar is also safe as its below fuel cut So i wouldnt worry about the fuel cut defender, rip it out and sell it for an adjustable actuator. You can fit a front mounted filter with any size radiator mate its just a few 90degree bends and silicone hoses