After a good and way too long search I finally located a set of exup cables and was able to swap out my Yoshimura full header and swap in my FZR exup header. It took so long because, well, they're hard to find. Most people who have exup bikes keep the exup. Ordering from Yamaha was going to be a long and costly process because they list the cables with two separate part numbers for the FZR1000 and want $63 bucks a piece for them. To add to that they are also back ordered and would take probably 2 months to show up. This was the same scenario for YZF1000R ThunderAce cables as well. I happened to be looking at the 99 R1 microfishe and noticed the exup servo is in the very same place on that frame as my FZR frame. Both cables are also listed under one part number and around $85 bucks for the set. Long story short, I ended up getting the cables from someone on the R1 forum who was parting out a 99 R1 and they were an exact fit.
You can see the difference in headers here
The Exup Header installed.
That made a big difference in low end power. To put it blunty, I now have low end. The power output is a lot more linear and the bike now wants to go when you let the clutch out instead of struggling to get to 4000rpm-and this was just going around the neighborhood with an open header (which is also almost twice as quiet than with the yoshi header). It even shifts smoother. I still need to go back in and tune some more as my idle still seems low but I'm quite happy with how it's progressing. I also need to make a decision on whether to order a $30 exhaust gasket (which is currently backordered) to use my stock pipe or have a mid pipe made to use my Yoshi pipe-which should cost roughly the same as the gasket. More than likely I'll have a mid pipe made. Here is WIkipedia's explanation of what exup is and it should explain why made such a big thing about swapping headers. More to come..
