[grybrd123]

Thanks for replying. Yes, I have the engine bay fans, and they have been reversed to blow up so they are operating in accordance with physical law (that is, hot air rises). I just want to make the engine bay (and engine temps) as cool as possible. I like the rear exit pipes, but all those bends, plus the extra pipe length, seem like they must increase exhaust back pressure and therefore heat.

grybrd123