I have an 05 that I got a few months ago. I've changed the fuel, cleaned the fuel system, changed the wsg solenoid, cleaned out the map sensors, disassembled and cleaned the wsg switch, changed the plugs twice, ohmed out the coils, and am running 93 octane with octane booster. It will not go past 6000 rpms warm. I'm getting 58 mph cold, and 60-61 mph hot. I have 2 other turbos that are hitting 6200 rpms with ease. Any ideas?