The other day we finally got the FMF Q4 Muffler, FMF MegaBomb Header, and EJK Electronic Fuel Injection controller installed on our CRF250L Project Bike. The Q4 is our favorite muffler for these types of bikes, mainly because it's a little quieter than some of the other slip-on mufflers on the market, but still sounds much better than the stock exhaust. The MegaBomb header is an ideal header choice because it gives you more low to mid-range power, which the little CRF desperately needs. Finally, the EJK EFI Controller is a must-have mod any time you change the exhaust and/or intake, and EJK has pre-set the controller for Stage 1 type mods, like we've done here. It truly is a plug-n-play installation.
Installation:
Installation was super easy. The stock exhaust comes off by removing 4 bolts, and the FMF Header and Muffler bolted right up with no issues... everything fit great, and FMF even includes a small mounting bracket to mount the white plastic side panel to the Q4 muffler. The EJK EFI Controller was also easy to install... it plugs in right under the gas tank (which we did not need to remove), and we mounted the control unit right under the seat. We had everything hooked up and the bike running in about 45 minutes.
More details and a video clip in the next few days when we get a chance to ride the bike a little bit... stay tuned...