When I open my MY98 up I can feel the surge of the boost disappear. If I ease off to 3/4 throttle, the boost comes back in, but not as ripping as usual.

The car's completely standard and done 60k.

Thanks for any help and advice.

Ben

 

Now after a good run, it feels like it's not boosting in the higher gears at all!

I'm new to Scooby's, so any advice would be great.

 

Could it be that the CAT has packed up?