I live in CA and have a 2002 f4i. I want to get a Catalytic converter for the exhaust. Would i also need to get an O2 sensor too? If I wanted to install an O2 sensor, how would I wire it to the ECM? and would i need to reprogram the ECM?

 

why do you want to GET a cat?? i hear of people wanting to delete their cats all the time.. buy why add one? JW...

 

What state did your bike come from?If not a Cali model and you still want to add the cat you will more than likely need to replace the ecm as well.The wiring is different on both bikes (those with O2 sensors and those without).

 

cats lower the pollution. O2 sensors help maintain fuel economy, making sure the bike doesn't run too rich.

 

the cat will restrict the bike also..

 

Bicycles lower pollution even more. If you want to put a cat on the bike, just take it to a shop and have them do it, since you're not going to find something that bolts on. Be sure to put it after the O2, though, since if it's upstream, the bike will run rich.

However, if you think you're going to save the earth by putting a cat on a 600cc bike, you're sorely mistaken.

 

you are already doing good on a bike... take that money you want to put into your bike for a cat and O2 sensors. and put a new cat on your car... or switch to bio-deisel

 

yeah. i must be crazy for wanting to comply with lower emission standards and taking a step towards reducing harmful exhaust output like knox from my bike. And yet when someone cuts off their cats to squeeze out the last few bits of power, at the expense of the envirnment, that's seen as a positive thing...which is encouraged instead of cratiqued.

If you will, think of me wanting to add a CAT and an O2 sensor as a mod that improves performace with respect to efficency rather than power. I commute about 100miles everyday on my bike; fuel mileage and emissions has higher priority over my road-warrior desire for acceleration. But it's not like I want to giveup everything and switch back to the 250ninja. despite the cat, my bike will still be sexy and kick-***. dont worry.

 

::rolls eyes:: ok

 

Well then I would get a powercommander and a dynotune to adjust it to the proper fuel air mixture.