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215 Posts
Okay, What I want to do is build a one off exhaust that is a low mount single, like the zard, but with a much shorter, fatter cone tucked into the recess under the rider peg, and in front of the rear tire. Now the obvious problem is that to do this, you would have to cut the header pipe off right behind the collector, thus eliminating the O2 sensor. I know the easiest thing to do would be to get a power commander, but I would rather go with a tuneboy. My question then, is does the tuneboy eliminate, or use the O2 sensor? :???: