so from what I understand, Evo pipes will bolt right up to a Twin Cam frame, no? I have an 05, carb'ed FXST (so I don't need O2 sensor holes) and really like the Paughco upswept drag pipes. Some of their EVO models say they'll fit TC but others don't. I emailed Paughco and got a non-answer, pointing me at a different set of pipes.

My only thought is the rear pipe might hit the oil lines. Anyone try this out and find this to be the case?

 

This is an EVO/FXR 2-1 on my '01 Dyna.....Bolted right up.

 

I had WCC FU PIPES on my '06 which were made for evo/twin cams