You said there are no dumb questions so here goes! We bought a 2013 HD trike from an individual (not a dealer). It had been nearly totaled in a fatal crash. It was rebuilt by a HD shop and carries a full extended warranty until 2018. We were assured by the HD shop who did the work, that it is back to new condition and since buying it seems to be be all good but now we are ready to do do some stuff and i want to get rid of the catalytic converter. I have not spoken with the HD shop yet but can they usually change out the pipes and get rid of the CC or is that something that has to be done outside of a HD shop and does it effect the warranty? I would like to have some info before i approach them about doing the work. We are not mechanics ourselves and it looks like there are sensors coming from the CC and the work might be too much for us to handle at home?