hi z28dulong,
i`v just traded my 1999 xv 1100 for a roadliner after 4 years of fun n enjoyment.
my star was fitted with highway hawk slip-ons but also a hyper charger air filter and it was re-jetted for
breathing purposes but found that back pressure was a problem when riding against a very strong wind
not exactly your fix but food for thought befor buying sorry
roadliner rowly
ps keep your eye on the screws in your petrol cap
mine fell to pieces while riding and there are 27 bits
to remove from your tank ha what a job that was.