Hi do anyone hear about the Gram light exhaust? How much and where to get it.i am very interested. Or anyone have it already? any other suggestion ?

Yeah, e-mailed Rays Engineering in Japan. It apears that the Gram Exhausts are presently only sold in Japan, however; they assured me that availability in the USA and pricing will be in the next couple of months. I didn't hold my breath, I went out and bought a JIC Bullit Titanium Exhaust, only fourteen lbs.