Its all personal preference. I have always had good luck with Vance & Hines and this time I went with 4" round Rinehart exhaust. Has a nice sound. I am ready to do the headers myself. I did a lot or research and the reviews all said that the CFR falls apart after a while. They look awesome but I was nervous about getting those. Not sure about the truth to that. The Big Louies seem cool too. All a matter of the sound tone that you like. We will all have different opinions to the sound and look.
As all have stated, its your preference. Go to a bike rally and listen and chose.
Me, Fuel Moto 2-1-2 Ceramic Header with 4" jackpot slip-ons. Could not be happier
I have had Stock, SE Street Cannons, 4" Rhineharts and now RC Components 4" on my 14 SGS.
I am keeping the RC Components. My favorites by far. Great sound. Great look. Excellent quality. Just waiting for my power duals to arrive and cannot wait to hear them then.
I put V&H pro pipe on my 14. Awesome sound, 2 of my buddies are getting the same pipe based on hearing mine. I am concerned that it might attract too much attention though (police).
Had V&H head pipe and monster ovals on my 09. Enjoyed those as well.
I will ad that on my '11 SG, I had so many compliments on the sound, it had a Fuel Moto 2-1-2 header and the right side stock slip on gutted. perfect sound, not a great look if you want a bigger opening at exit