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hi all. i was given a manual boost valve that goes inline on the actuator pipe. are these any good to lift my boost or are they no good for evo's. if not whats the best way to do this easy mod. thanks. my guage shows its at 0.8bar would like to raise it to at least 1.0bar. ?

IS THERE ANY WAY OF ADVANCING THE IGNISION TIMMING ON A 4 FROM STANDERD 7 deg TO ABOUT 9. WITH OUT HAVING IT REMAPPED.

hi all, does anyone know the specs for an evo 4 ,,,, average miles per gallon as ive just bought one and im not 2 impressed with my economy, think there might be something wrong with it. ant help will be appreciated..........