Hey guys. Just wondering. ... Few months ago I bought a ram air cone filter with all fixings etc. Fitted it and I don't know if it's cus I fitted the filter but it seemed to snooker blue after a few days of driving it? Would that be cus it's sucking in hot air? I had a heat sheild on but they don't do much. So atm I've put the standard box back on. But I wanna use the cone filter but just worried about the blue smoke. If I boxer the filter in so no hot air can get to it would it run better? Thanks.