Hello chaps,

I appear to be suffering from the dreaded 'overboost'. I am averageing about 16-18 pound and maxing out on 21 pound (sorry I like PSI rather than Bar!).

My MY98 did this and was crudely 'restricted' with the old brass pipe trick.

I was told by a certain Motorsport team in Canterbury that STI's did not suffer from overboost. Can anyone advise?

Best Regards,

Mark

p.s. P1 has done 2800 miles.