ah... blessed are the Harley Bashers...

Anything can be improved with a little tweaking, and if you knew that when you bought it and have budgeted for it, then it isn't a problem.
Unfortunately to get a car or 'bike through emissions, safety standards and accountant's approval a lot of compromises are made by the manufacturer to get it into production. If you just 'undo' these compromises by fitting performance exhausts, fuel filters and remapping the engine management you begin to get near the pre-production prototype.
And I will let you know I have ridden my Harley in snow, hail, LOTS of rain and on dirt roads!!!
(and yes, I have got all the parts that have fallen off/rusted on back order... *cough*)