Originally Posted by ljl23

I am in the middle of deciding right now as well! The Flash Point is my #1 option but it is out of stock right now. I really need an engine in about 2 weeks because that is when it gets warm enough to run out here. I've narrowed it down to the Ultimate M3-X or the FP02 - both are out of stock, I am also looking at the R5R (without a pipe) which is in stock. I've also taken a look at the OS 21XZ-B, but trying to find an alternative for a $80 2090 pipe. I've looked at SH but am worried about quality and also want support on the track.