So I am looking into a Yoshimura Full Exhaust for my 2009 CBR 600 RR. After I put that on will I need to buy a Power Commander for it also so that the bike doesnt run like **** or will it be ok?

 

Due to the enormous complexity of aftermarket upgrades, ALL exhaust manufacturers design their equipment to work perfectly fine on STOCK bikes.

Furthermore, you will never, ever, EVER, *NEED* a power commander, and *NO* aftermarket part you add on will make your bike "run like ****" without it.

HOWEVER, adding a power commander *WITH A CUSTOM MAP* will increase the performance of ANY FI bike configuration, EVEN A STOCK ONE. Adversely, adding a power commander and using a "stock" map does run the risk of making your particular configuration run like ****. Addind apower commander means taking your bike to a dyno that is run by someone who knows what they are doing, and paying them to engineer a custom map for your specific bike. Even if you have the same components as another person's bike, engineering flaws and the inherent error % in dynos imply that your bikes will vary slightly still, and the other person's map may not net you the best performance gain.


Can we please make this a sticky? It comes up like once a week, and we know how people think the search button will give them leprosy.

 

good to know i just ordered the Yoshimura TRS Titanium slip on for my 03 F4i.
i have a scorpion titanium flame pipe on it now but that's what came on the bike
and i don't like the blue/purple on it since my bike is red/silver.

 

i have an 03 600RR with a full yosh titanium header back with the power commander dyno synced and i love it!!! i have ridden 03 stock bikes and the defference is amazing. and the sound it makes is redik. i think you will be very happy with it.