Pro Circuit just released its new TI-4R system for the 2010. http://procircuit.com/ Watch the flash animation showing the 2010 exhausts and you'll see it. Havent found actual pics of it out of the animation though. Note the powerbomb style section on the pipe and its location. What do you guys think of it? Just trying to decide which system to buy for my 2010 (but I have a few months to decide as its winter(snow)here) but from the reports I've heard the 2010 could use better top end (over-rev). Now check out this fmf pipe, seems like an updated revision to their current one shown on their website. The website model has a megabomb chamber right at the beginning of the pipe upon exiting the head, but this newer model I found on vitalmx http://www.vitalmx.com/photos/features/Rossi-Ride-Day,3868/YZ450F,21452/large/GuyB,64 has a "pot" on the header an inch or so back. This makes me think they possibly found more power using the "pot" design. What do you guys think would work better, the pot or bomb? Ohh, then you have akrapovic in the mix too, they're chamber is within the loop. I'd like to give one of those a try as they could very well be the best on the market, but they are a little more expensive and then with the 20% off fmf and pro circuit right now they are a lot more expensive so I dont think i'll be buying one of those. The pipe shootouts for this bike are going to be interesting..