I got my jackpots in yesterday, the warning that comes with them that say these mufflers are balanced for optimum performance and the one with the small opening must be installed on the left side. Is the left side considered the side with the shifter? Is this sitting on the bike or looking at it from the front?

 

Smaller diameter baffle goes on shifter side.

 

Thats what I thought, but that makes the right side louder.

 

It's because most of the exhaust goes out the rightside as sitting in the seat

 

The stock exhaust does the same thing too,HD's idea of a 2-1

 

They are evening out the back pressure since the right side breathes the most.

 

Are you sure? I swear mine said put the smaller opening on the throttle side, thats how the factory ones were installed.

If you are evening out the back pressure wouldn't logic dictate to pinch off the side with the most flow to even it out?

 

For Jackpots, the smaller-diameter baffle definitely goes on the left (primary) side.

 

Left = roadside = port = little hole Jackpot muffler

Right = curbside = starboard = big hole Jackpot muffler

 

Well hell, the consensus says I have mine on backwards.