I'm going to install it by removing both undertrays. Here's to hoping that the bumper doesn't have to come off for a charge pipe upgrade...Thanks! But dang! They only have the blue hose kit... Oh well, I'll wait for the bundle to be back in stock at the UK store and hopefully get an order in soon. I'm more inclined to get this now that I know I don't have to take off the whole front bumper like I did when I installed the Mountune intercooler. I'm hoping it'll change the noise a bit as well since the stock charge pipe has that weird resonator section in it.