Originally Posted by
TheEntertainer
Hi all,
With a lot of help from shack and a few others I have now resolved the issue and boost levels are back to normal. 16psi with the odd 17psi full out.
I undid the bolts on the down pipe and pushed it down so there is a 5mm gap, drove around the block and beside an awesome sounding car the boost was back whoopot. Tightened them back up and loosened the ones further down the pipe, back to normal. Replaced the down pipe and boost is now back to normal. Whoohooo