has anyone changed the 4 small pipes that come the top of the engine by the throttle boddies, and injectors they come out and lead to two larger pipes... one goes across the midle of the engine the other goes from the far left of engine and goes behind the fuel rail and pops out, bag in the midle of the fuel rail... if so what are these pipes for (oil breathers, and if so can i replace them with normal silicone or does it have to be fuel line silicone :evil:
