Exhaust

[Kizzle115]

I have a 03 600RR and am in the market for a slip-on exhaust, I either want an Akrapovic or a Two Brothers. I was wondering if anyone knew the difference between the Two Brothers M-2 V.A.L.E. slip-on and the M-5 V.A.L.E. slip-on systems. I am leaning more towards the Two Brothers over the Akrapovic due to the deeper throatier tone they have. But I am open to suggestionsif anyone knows anything about any of these exhausts all information and help is appreciated.
Thanks again...

[dragonium25]

M2 is smaller than the M5. For what you have get the M2, M5 is more for the litre bikes. I've got a 2Bros and it's badass, you won't be dissappointed.