(09-09-22, 08:57 AM)fazerscotty link Wrote: Fit a 4-degree ignition advance plate - gives you back the sub 6k grunt, without the cost of the EXUP parts.Gnasher/Whale/Falcon or someone will be along to correct me if wrong but I would be wary of advancing the ignition.
Either replace the missing valve with a used set of headers, or as I just learned get a exup valve of a set of 1998-2000 R1 headers (see post below)