aftermarket pipe/exhaust? PCIII needed?

Looking at an '00 VFR....question. To put a pipe on one (has stock pipe)......is it just a bolt on (with screws)? And is a PCIII required/good idea? Also is a full exhaust available for the '98-'01?

Thanks,
Roces

 

Staintune slip-on was a five minute job. haven't remapped and don't feel its necessary.

 

Depending on the type pipe and can, it can be easy or a bit more entailed, but never hard. After installing, mapping, and riding with the PCIII, I feel it was necessary. Drivability it much enhanced and PCIII lets you map out the lean spots to improve the lean snatchiness.