I got a cone filter for the 6 a lil while ago, and after I installed it the damm thing turned into a BOV, hehe, it makes lil whooosh noise from 1-2 & 2-3, prob makes it in higher gears but road noises prob cancel it out. it only makes the noise when shifting around 2000-3000 RPM. Has this happened to anyone else. I took it off and put the stock unit back in though. Also when I get a real BOV what can I do to fix the backfiring prob & the richness, lol. Thanks.