hi there. have been a st owner for just over a week now, she a 2008 st2, have spent all day fitting a bailey dv26 dumpvalve along with the supplied samco fitting kit, and no matter how hard i try i cannot get the silicone tube to mate up exactly where the standard tube fitted, we are talking 3/4 mm. after a test drive it feels like the turbo isnt pulling quite like before, i have checked all the fittings are tight, but still the power just seems a little off. also the whistle that is made by the turbo seems louder, not hugely but definately more noticable!!! can anyone offer any advice??? and yes im sure the die hards will advise i lose the dumpvalve. thank you all.