Was thinking to buy a GPR exhaust because it's the only one I found with catalytic converter so far(and they claim is road legal sound wise), but I own already an FMF powercore 4. So the question is, is it possible to add a catalytic converter to FMF or should I get that lovely titanium gpr for 300euros full line?!
PS I'm riding the bike for commuting also, so can't stand the smell on my clothes without the converter, plus I don't wanna mess with laws.

 

As far as I know you can't add a catalytic converter to an FMF, so I'd stay legal with a GPR as they're a good quality quiet exhaust.