2014 XT Touring

There is such volume of information here that it can be over-whelming.

I'd like to get an Invidia Q300 catback exhaust. From what I've found this is generally a quieter exhaust. It sounds perfect. I don't particularly want to attract attention. I've seen threads about an N1. What is this compared to the Q300? Is it a variation or something else? It sounds like it may be louder. Might anyone speak to this? Thanks