Like I said in another topic, I shaved off .42 sec in the 1/4mile by removing all silencers. 3barboost talked about this issue some time ago and he pointed out that there is a restriction in the intake system.
the silencer on the turbo up pipe is the most scary one to remove... yes it requires to cut, bore and glue but after that, I was moving with less throttle pressure and the turbo was retaining 14 PSI in third gear after initial 15.25 that it bumps with stage one. Before this, I would get 15.25 then go down to 12 or 13 depending on the temp and humidity.
Ian
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