No boost revs to 3500 rpm no boost ,runs decent till then like a normal car at low speeds

 

Get the OBD2 codes read, post them up here. There are several things that could be causing this, no sense making wild guesses.

 

shoots I will check it next week since its parked at friends shop
mahalos this is a great sight glad I joined

 

Me too! Have a little search , just type boost into the search window, loads of information here , but really without any codes it’s a shot in the dark !
It could be a number of causes, a cracked charge pipe, or loose coupler.