[wdb]

Bump for even more interest than I had before. I spent the better part of my day yesterday crawling around under my car (installed T1R header and b-pipe), and while I was under there I spent some time considering what a rear diffuser might look like. I have to tell you, the Fit is RIPE for a diffuser and would quite probably benefit immensely from its addition, both in terms of handling/stability and fuel economy.

I'd build mine like a funnel: start just behind the fuel tank cover, make it wide enought to pass the rear axle area without interfering with anything, then expand it out after passing the rear axle right to the edges of the bumper. Take the jacking point off and do a proper job of it. Maybe do some kind of aero replacement piece as an option.

I'm really stoked about this idea! I might just go get some Coroplast and get to it myself.