Mapping for Slip-Ons

Question for Fix My Hog I have a 2002 Road King Police edition with fuel injection. I changed the slip-on mufflers and have been looking at an air cleaner to help the bike breathe better. I’ve been reading that changing the air cleaner is going to lean the bike out causing it to backfire and run a lot hotter.

I’ve been watching your videos and have learned a lot—thank you. I’ve seen a programmer that you installed to fix that. Is that programmer available? If so, where? I’ve seen Cobra’s site, but the new model does not fit 2002 bikes. Any help or advice would be great.

Follow up: Thank you for your response. I ordered a Power Commander V. I have an air cleaner that looks a lot like an Arlen Ness Big Sucker to go with my Cobra Neighbor Hater slip-ons. Can you recommend a map for my Road King or should I contact Dynojet for specific help with this?

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Fix My Hog Answers Yes, you will definitely need a tuner. We suggest a Dynojet Power Commander V for your year and model.

Map #15-27-006 should work fine. It is for slip-on mufflers, high flow air cleaner assembly, and a stock ECM. If any decel pop exists, add 10% more fuel at 0% throttle for fuel tables, or you can email DynoJet with your bike’s specifications. They will email you a map typically within 24 hours. Good luck with everything!

Related Fix My Hog Videos: EFI Mapping Have more questions? Check out our Q&A index page to find some answers.

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4 Responses to “Mapping for Slip-Ons”

  1. Mark E MacGown

    I'm going to be installing svt boneshaker slipons on my 2021 triglide ultra classic what should I do to insure proper performance

  2. Mark G

    I have just installed 36 inch fishtail drag pipes on a stock 2001 Road King. I was told as long as I have the stock air intake they should work fine. I am getting a bit of backfire on decel. Do I need the DynoJet tuner as well?

  3. Bill Bauman

    I have a 2017 Street Rod someone before me put an S&S slip on muffler on it. I like the sound but it pops, bangs and backfires whenever I let off the gas. I’ve thought about looking for a stock one but like I said like everything but. Is there a tuner or something that can help or even fix this problem? Thanks Bill

  4. Dean

    I had a bad fuel line in the tank and changed the fuel lines , fuel filter. the regulator.The tank had bad fuel in it. Do I need to take the injectors off to clean them? Because the bike is running lean now?