Mate its worth it, biiiig difference on my Nomad. Also take off the mufflers and take out the baffles on the engine side, should be one in each pipe on that side.
Not sure about you guys over there but in Aussie we have a CATALYTIC CONVERTER in each pipe, (honeycomb type material). I left them in.
Sounds great without being over the top loud and improved the performance.
As was said elswhere , LET THEM BREATHE.