Performance Upgrades

Question for Fix My Hog I have made upgrades of Cobra exhaust pipes, Screamin Eagle mufflers ,and air cleaner upgrade. I now need a tuner,but am undecided between Harleys and Cobras. I have heard that Cobras only works after the throttle is opened and not at Idle. I like the idea of the constant tuning of the Cobra, but I do a lot of commuting with a lot of traffic idle and concerned about lean at idle. Can you compare the two systems and give your opinions on the best choice?

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Fix My Hog Answers Your combination of exhaust and air cleaner is quite common, and easy to properly tune. Cobra is a good choice. Never heard of what you mentioned about no adjustment @ idle, that doesn’t sound right. We use more Power Commanders and Vance and Hines FP3s than anything else. Also check out Dyno Jet’s Power Vision. It is expensive, but a lot of fun to play with. You can mount it on your handlebars or leave it at home.

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6 Responses to “Performance Upgrades”

    I have had 6 new Harleys since 2007 now have a tri glide due to health, used all of the tuners you mentioned including the sert. the best tuner for Harleys I have found is the tts mastertune it works very well and can do many things can be tuned very well without a dyno by riding and adjustring

  2. Michael Moschella
    Michael Moschella

    I have a Thunder Max and I swear by it. Can make changes and the TMax will tune accordingly with no dyno time.

  3. Nick.Leischen

    I have a 2017 CVO Limited. Rinehart 4.5” mufflers and no cat in header. Using the V&H FP3 and like it better than others in the last. FL3 shares a lot of info from the ECM. Let’s me view and even clear error codes! A big plus! Also easiest install. I considered ThunderMax but everyone I spoke to said that since it actually replaces the OEM ECM that it voids the H-D Warrantee.