I have done stage 1 & now stage 2 with 4-holes so far. The way I see it is this:
Stock exhaust - sounds like a sewing machine all the time.
Stage 1 - (drill/knock out center screen)
At idle it is still like a sewing machine. But you can hear a bit of the rumble when you get on the throttle. Still pretty quiet at cruising speed.
Stage 2 - (take off black end cap, cut off center pipe, drill 4-holes in baffle plate around center pipe)
It is louder than before but still pretty quiet at idle. For example, you can still talk to the biker next to you at a stop light. However, when you get on the throttle to accelerate hard, you are really starting to hear the rumble. The nice thing is that when you are not accelerating hard, it is not all that loud. Yes, louder at cruising speed than before, but not that loud WAAAAHHHHH that tends to give me headaches after 30 minutes.
As I said, this is as far as I have gone. I am thinking of adding 2-4 more holes per pipe, but I doubt that I will do stage 3. This is just my opinion, but if you want a bike to sound like a bike, but not be obnoxious, then stage 2 is the way to go. At worst, do stage 2 but only drill 2 holes in the baffle plate first. Then you can add more if you want to. Hope this helps.
'07 VN900 Classic
Horsepower is an illusion.
Torque is the source of all good things.
Last edited by Jeep Pirate; 08-23-2010 at 10:03 AM.