Two Brothers or Yoshimura???
Keep your eyes open - I picked up a full M4 'race only' exhaust system for an F4i for $300.
The full system does give a few more ponies... but for 99.9% of the world that's mostly pose value as we can't even use the power we have to its fullest. On some bikes you do get a significant boost going with a full system, but generally with street versions of track bikes - not so much.
Slip-ons are cheaper and do what most people want - look better, sound better.
The full system does give a few more ponies... but for 99.9% of the world that's mostly pose value as we can't even use the power we have to its fullest. On some bikes you do get a significant boost going with a full system, but generally with street versions of track bikes - not so much.

Slip-ons are cheaper and do what most people want - look better, sound better.
ORIGINAL: woot
Keep your eyes open - I picked up a full M4 'race only' exhaust system for an F4i for $300.
The full system does give a few more ponies... but for 99.9% of the world that's mostly pose value as we can't even use the power we have to its fullest. On some bikes you do get a significant boost going with a full system, but generally with street versions of track bikes - not so much.
Slip-ons are cheaper and do what most people want - look better, sound better.
Keep your eyes open - I picked up a full M4 'race only' exhaust system for an F4i for $300.
The full system does give a few more ponies... but for 99.9% of the world that's mostly pose value as we can't even use the power we have to its fullest. On some bikes you do get a significant boost going with a full system, but generally with street versions of track bikes - not so much.

Slip-ons are cheaper and do what most people want - look better, sound better.
to be back on topic:
yosh = quiet/mild
two bros = loud/throaty
~GO YOSHIMURA!~
after about 15,000 miles or so my yosh sounds a little louder and a lot more throatier than when it was brand new and still smooth at lower rpms. two bros is my second pic then d&d third pic.
after about 15,000 miles or so my yosh sounds a little louder and a lot more throatier than when it was brand new and still smooth at lower rpms. two bros is my second pic then d&d third pic.
I also have a Two Brothers on my 07 600 and it sounds amazing i chose it by gong to youtube and searching videos and listening to them on the bike. i don't think you will be dissapointed with either of the two choices.
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