a question in the round, I drive an omega kombi mv6 bj 96. when giving gas blows in front what either curved seal or exhaust manifold, although it still looks new. only when giving gas blows what on the right side. in the stand empty run nothing to hear from blowing or hissing. so in the free workshop and asked what it costs to expand. mean 400 euro the engine must be lowered to be able to expand the exhaust manifold on the right side. that can’t be so right, says the whole axis must be solved said the in the free workshop here in whv. is this all so ??? thank you in advance