buy a new one, in a kit.

I've bought them on ebay and made my own adaptor plate and my results were lacking, but i learned a lot.

it's way better than stock on the worst days.

my last one let off a nice bang when you turned the key off ;) it was so fun in a sick way... i hate my neighbors.

the first day i had my weber i was driving down the street going maybe 30 mph but apparently it was making a noise in the 1-2 shift that startled someone walking down the sidewalk like a cartoon. I had a big grin.