Nothing beats drag pipes! I cut everything off the the end of the header back and welded on straight 2" 16g automotive exhaust pipe. Afterwards, I wrapped them in black exhaust wrap and then put a few coats of black silicone paint.
I had to back the pilot screw out about 3 turns (from the stock position) to richen up the mix a little and reduce the popping/backfiring. This was uber cheap but, it may or may not, be the look you're after.
It seems like lazy four wheelers and soccer moms completely block out the sound of beeping horns but they sure as hell here/see me when I wrench on the throttle now.
1985 Honda VT700 Shadow
130 front and 135 rear main jets
48 slow jets and 2 shims per needle
Barnett Clutches/steel plates