2011 DRZ-400S Original owner has the 3x3 mod completed and I would assume its jetted but I personally have no idea on how to confirm that. He also had an FMF exhaust FMF Q-4 Slip-On Muffler http://procycle.us/bikepages/drz400.html I kind of smashed that end of the exhaust up so I figured I would replace it with the FMF Q4 & PowerBomb System from the same website In the same incident I cracked off the back of the subframe so I had to replace that, everything went back together correctly, kept all open ports covered while working on it. Replaced the subframe with factory part. Wired up new tail lights and turn signals, works great. When I start the bike with the choke wide open, and half way in it sounds great but it drops with the choke all the way in. Are there any new adjustments I should make with the new downpipe? I used high heat permatex silicone around the connection of the header to the engine and from the header pipe to the exhaust. Any thoughts or suggestions? Thanks!