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JMO, but, maybe before you go out and spend big $$$$$ on loud pipes and the associated jetting/Power Commander, maybe consider picking up some sort aftermarket horns... i.e. LOUD ONES! I do have a loud exhaust cuz I enjoy hearing the motor, but, we all know that sound goes right out the back..... useless for people ahead of you.
I've installed a pair of Fiamm 135 decibel (1 high, 1 low tone) on my SV. They've been wired directly to the battery (fused, 10 ga. wire) and controlled by a relay put in place of the stock horn. The horns and relay came to about $50, maybe less, can't remember.
I just recently got to appreciate this little mod at the rotary in Stafford, where someone coming up to the rotary, never even looked and started into my right of way... The horns DEFINATELY got his attention! Sounds like a Mack truck, or, grandma's old Buick!