02-09-16, 01:00 PM
(01-09-16, 10:24 PM)Falcon 269 link Wrote: The flat spot from the cheaper EXUP-less replacement systems is very noticeable and impossible to tune out.
I'd disagree with that I'm afraid. I have a straight through set of stainless downpipes on my Gen1 which I bought off of another Forum member and don't have any issues.
Granted my bike has been Ivanized and has a performance filter, etc but the acceleration is smooth througout the rev range. In my experiance the Gen 1 can work perfectly well without an Exup Valve but it needs to be set up properly.