Does anyone know who might sell throttle body extensions? I need to raise the height of my Mikuni's on the 08 R1 about an additional 1" from the base gaskets / mounts to clear some frame structure.

I happen to have some stainless exhaust tubing in the correct diameter (2" OD) that I can cut, but they are heavier than I'd like.

TWM does not have what I am looking for.