When I bought my 06 Dyna Wide it was running Python Staggered Duals Exhaust and an off-brand air filter. I kept the exhaust but I changed over to a forward mount Cobra High-Performance Cone Air Intake. It seems to run out ok but I'm wondering if I should mount a matching fuel processor just for the sake of it. What would y'all suggest??

 

Air and exhaust are considered Stage 1, and the ECM should be able to compensate for those, but if you do more work, especially on the engine (cams, etc. - Stage 2-5), then you will need to add a fuel processor.

 

Maybe it runs ok without a tuner but you'll be amazed at how much difference a good tune will do for your performance. Not to mention cooler running and longer life.