In an effort to make gain a bit of clearance I was wondering if there are any angled 4" inlet air filters out there. Currently I'm running a shorty S&B inverted cone filter but I would like something with about a 15-20 deg angle to it like on the race karts.

My other thought is running an oval filter but would need an adapter from the oval to 4" turbo inlet. Anyone know of any inlet or adapter pipes that do this?