New member 2001 1200 sporster rear bank exhaust sucking in

[Hossamania]

As far as replacement pipes, I'm fond of the Thunderheader, but I'm not sure if you'll have a big choice matching up pipes with that frame and motor.

[boooby1744]

Khromewerks drag pipe baffles work well. A little more $$ than a bolt and washer though.

[TexNorth]

It is my general understanding that if you are after the peak performance, in descending order.

You would want a 2 into 1 that each head pipe is about the same length.  The flow from one pipe helps scavenge the 2nd. With Baffles

After that, any 2 into 1 is next.  With baffles.  You still get the scavenging.

Then a dual system, optimal would be that both pipes are about the same length.  Again, with baffles.

After that, pretty much anything as long as it has a baffle

Anything with no baffles.

Last, drag pipes.

So, start at the top and go down until you like the sound.    That's your exhaust choice.   


   

[Hossamania]

And one that fits. Not sure what kind of issues finding one may have with the Evo motor and Ironhead frame.

[Jakeschultz]

Yeah I had to do a small amount of mod for them to fit, but not much.

[machinist]

shorten the drag pipes and use them for head pipes, then put on some slip on mufflers.