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Uncorked Stock Exhaust
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Posted by: erac4019

I removed the Baffle/Spark arrestor from the stock exhaust on my KFX and wondered if it is ok for me run it like that with the stock fuel controller or will it be too lean?

Posted by: shoey

some early dyno tests showed a drop in horsepower without the peashooter using stock tune but a one to two horse increase with the peashooter in and the air box cover removed.

Posted by: erac4019

Thanks for the info. I plan on getting the HMF pipe and optimizer in a few months, once I get the suspension and handling where I like it. So anyone else know if I'll be too lean like it is? I'm thinking it'll be ok since im still running the airbox lid but I do want to be safe and not damage the topend.

Posted by: dsl

Is pretty much everyone that runs the stock exhaust taking out the spark arrestor?

Posted by: k4f5x0r

how can you even stand running it without the baffle? it sounds like complete *** and i want to punch a baby in the face everytime i hear someone running baffle out

Posted by: dsl

Does it run better? ...regardles of how it sounds or how many babies you have to punch

Posted by: k4f5x0r

stock for stock
i could get mine to run at all with the baffle out. it wouldnt start. then i put it back in it wouldntstart. had to bump start it to get it to run again.

plus it sounded like crap