I have FM PCV wA/T, Stage 1 A/C, and the Carbon Fiber mufflers on my 09 RG, and bike runs just ok. If I had to pick 2/1 or 2/1/2 headpipe which would be better? If the new 2/1 works on a 09, could I use 1 of the carbon fiber mufflers I have or is the single exaust a different size? I've been considering the D&D FC or Pro Pipe Chrome.

If Jamie sees this, is there a difference between Rt and Lt on the C/F mufflers?
Thanks, Mike

By running just ok I mean it runs smooth, more pull than stock, but not impressed with Dyno #
I and a friend had are bikes dynoed one after the other at Thunder Beach 2010. Bikes were bought 3 days apart Dec 09 and his never touched was 68 hp and mine was 72.

 

I would highly recommend the 2/1/2 head pipe as it will work with your mufflers and will use your current heat shields. The Jackpot Carbon mufflers have the same baffle both in mufflers. As far as your dyno results, if you had them done at a rally or event I would not look too much into the results. For a proper evaluation you need to have a more controlled enviroment with proper air exchange for both incoming air and exhaust extraction, the ability to test the motor at optimum engine temp, and for best results an O2 sensor in your exhaust system for an accurate sample, not stuff a probe in the muffler. A correct evaluation take 45 minutes or an hour, anything less is just a few quick full throttle runs at whatever engine temp it happens to be at.