Ordered my pipes from the 4th of July sale and a K&N filter. Do I need to rejet for these two changes? I have heard that said the stock air box won't give me enough air and make it run rich, anybody else have these problems? What jet size should I start at
It'd be "enough air to make it run lean" - more than rich.
See how it runs. It'll probably get you to where you need to go to buy a jet kit
That said, I don't know the answer. I had mine rejetted when I changed to a K&N filter w/ stock airbox. I have bubs for pipes.
I have an ultraflow on the way now, so I'll have to rejet again, I bet - though according to the jet-kit chart (sticky) - I might only have to move the clip, since I have a 195 already in there. Still, I would like to get it dyno'd again...