has anyone fitted one of these boost controllers ? are they worth there money .thanks for any info . i just like the idea that i can change the boost in different gears and the boost curve . the reason is i will have most likely more than 330 rwk and only 215 60 16 c rated tyres (commercial )due to one tonne ute that i am fitting a modified ba turbo engine and running gear to .on the track i will use et street drag tyres ,so no problems there