I have been going through the threads and can't find a clear answer.
I want to add a catch can to my Evo IX. Are these cans open inside, or is there some kind of baffling to help remove the oil vapors? Is there a clear winner or loser in terms of performance or are they pretty much the same?
Am I wasting my time thinking about an aftermarket Hid conversion if using my stock headlamp housings? Opinions seem split down the middle.