Hi guys need to put this up for a mate.

His turbo on his S2 holds boost fine when its cold but as it gets
warmer the boost level starts to drop off and now it peak and
holds 7psi instaed of 1bar.

Even when he is just taking it easy around town by the time he gets
home the manifold and turbo are glowing very bright.

Not to sure whats causing this so any help and ideas would be great.

He changed the thermostat last weekend and put new antifreeze.

Cheers guys in advance

Matt