fitted a fmic on my gt run around and having big issues trying to get the short routi hot pipe to fit and geta good seal on the turbo, i have had to attack the pipe with hammer as it was fouling the power steering pipe and not i cant get a good seal on the turbo to hot pipe, is it safe to use the copper xs high temp instant gasket around the flanges( a small amount around the out side) so i can try to get a air tight seal as its leaking boost past 0.4 bar