Does anyone have an accurate description and install process for the 2j cowl intake? I've installed mine to my best judgement but I was left with a large rubber coupling and a large plastic coupling connector?? I'm also picking up 2 misfired and a few knock( yes I know that both these can be natural) I'm running the stage 1 cobb tune and I haven't done any other upgrades. The car only has 8000 miles on it . Also does anyone else expierenece that bumblebees buzz that almost sounds like a rattleing ngine cover with this intake??