Me again, I just can't stop thinking about dirt bikes even though I'am supposed to be working. I'am looking for a new muffler for my 450, thinking of the new quiet ones, I know FMF makes the Q, Pro Circut makes the 696, and I think White Bros. has one. FMF seems to be the only ones advertising them, I keep waiting for a quiet pipe shootout so I can decide which is the best. The manufacuers don't seem to be pushing them much. I think it was Dirt Bike that said they would be doing a shootout a couple of issue's back but nothing yet. anyone got one of them on their bikes?