[mike992]

Hello,

Working on a 2008 Honda CBr600RR.

If I changed the whole exhaust for a racing set up, so its straight-through system, will the ECU pick up the changes through the lambda sensor and make the appropriate adjustments to the air/fuel mixture? As I thought the stock ECU is able to pick these changes up through the oxygen sensor and make appropriate changes to the fuelling? Or is a new fuel controller like the DynoJet Power Commander needed? Would appreciate if you could help me. I had an 08 R6 and changed their whole exhaust system and the ECU did adjust, but Im not sure regarding the CBR?

Thanks

 

[FightingChance]

The stock ECU will not make any(enough) changes to the fueling - you will need either a piggyback unit or a flash. Also you must deal with the EGCV being removed.