Screamin' Eagle Smart Tune PRO Automatic Tuning Module

    Part Number 41000445





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    Smart Tune Pro works with the Screamin' Eagle® Pro Street Tuner to automatically tune your bike for the combination of performance components, temperatures, altitude, and vehicle load conditions you are operating in. You just install the upgraded wideband oxygen sensors in the exhaust headers, download the calibration that our Screamin' Eagle® engineers have developed as a starting point, then simply drive down the road and let Smart Tune Pro do the work for you.

    • Constantly monitors the operating parameters of your motorcycle, and automatically adjusts the bike's Electronic Control Module (ECM) to maximize performance in most riding conditions
    • Utilizes wideband O2 sensors that read oxygen levels in the exhaust stream to determine the optimum air/fuel ratio, spark advance and timing your bike needs at this very moment
    • Incorporates the data and automatically makes real-time tuning adjustments to the ECM
    • Wideband sensors can read and help adjust tuning throughout the part throttle cruising and full-throttle acceleration operating range
    • Kit includes the Smart Tune Pro module with plug-in wiring harness, two M18 wideband O2 sensors, and access to free software updates, future calibrations and free on-line training modules
    • Screamin' Eagle® Pro Street Tuner and model-specific installation hardware is sold separately
    • 50-State U.S. EPA compliant
    • Pending approval for use in California on '19 XL models


    • Warranty

      1 year limited warranty – Go to for full details
    • Requires ECM Calibration

    • Certifications

      50-State U.S. EPA compliant
    • Sold in Unit

    • In The Box

      Smart Tune Pro module with plug-in wiring harness, 2 M18 wideband O2 sensors, & access to software updates, future calibrations and online training
    • Sold Separately

      Pro Street Tuner & Installation hardware


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    Fits ’17-later XL, '16-'17 Dyna® FXDLS, '16-later Softail®, '14-later Touring and '17-later Trike models. Installation requires exhaust modification to incorporate wide-band oxygen sensors. Some models require Oxygen Sensor Harness Extension. For model specific installation requirements see Installation Instructions on H-D®.com/shop. All models require ECM calibration with Screamin’ Eagle® Pro Street Tuner for proper installation. 50-State U.S. EPA Compliant. Pending approval in California on '19 XL models.

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    More Info

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    • These Screamin' Eagle® products are 50-State U.S. EPA compliant for sale and use on all applicable vehicles, including those that are pollution controlled. See Genuine Motor Parts and Accessories or Screamin' Eagle Accessories catalog for fitment information. Screamin' Eagle Performance products are intended for the experienced rider only.


    Smart Tune PRO Automatic Tuning Module is rated 4.3 out of 5 by 6.
    Rated 5 out of 5 by from Noticeably smoother, responsive It seems Harley put a lot of effort into this tuning module. I was very unhappy with the Stage II Torque modification. This tuning module was very easy to install and it works pretty well. It's also legal. My bike runs smoother and it feels more responsive than before. I am pretty happy with the result and do recommend this module.
    Date published: 2018-01-28
    Rated 5 out of 5 by from Very smooth Very happy with this tuner. My 2017 FLTRXS is real smooth and responsive. Much nicer ride...
    Date published: 2017-12-01
    Rated 5 out of 5 by from 114 Stage 4 Tune I upgraded to a 114 stage 4 on my 2017 RGS and honestly I was expecting more performance it was good but not great. The map I downloaded for the 114 was OK but I new it could be much better. I already had the MP3 tuner but they do not offer a map for the 114 and the auto tune was not working. I installed this and took it for a ride today and WOW what a difference... the idle was different and it runs soooo good now I am truly impressed and feel much better about the entire combination performance. I highly recommend this tuner ...
    Date published: 2017-10-14
    Rated 5 out of 5 by from Smart Tune I had this installed on my 17 Ultra Limited, which has a Stage III kit, SE High Flow Exhaust and a Ventilator AC, and I was impressed with the improved throttle response and drivability. As expected the peak dyno numbers were unchanged but the part throttle street manners are noticeably better.
    Date published: 2017-09-07
    • y_2018, m_2, d_26, h_20
    • bvseo_bulk, prod_bvrr, vn_bulk_2.0.7
    • cp_1, bvpage1
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    • clientName_harleydavidson

    Q & A


    Can this be used with the SEPST?
    Asked by: 10Bom
    The pro street tuner is required to use the auto tuner
    Answered by: RambosPR
    Date published: 2018-02-15

    Do I still need a dyno tune with this?

    17 road king special m8 107. Was told by my local hd parts guys that this will not work as advertised with anything '16 and newer. Purchased the screaming eagle tuner, full Reinhardt exhaust, and heavy breather intake. Was told I would need a 4 hour dyno session reguardless because this will not work as a addition to the se tuner and the company stopped releasing tunes available to the purchasers of the se tuner after the '16 model year. Can't find any other info to support or refute these claims, please advise. Would much rather buy this for 400$ one time as opposed to paying 400$ every time I change something to get it dynoed again.
    Asked by: Aski85
    I have this installed on my 17 RGS I live in the mountains can go anywhere from 100 to 8000 ft. elevation in A day this works great and it's not been dyno tuned! I have A stage IV kit with SE high flow exhaust and air cleaner .I had the front head changed this is now is A monster
    Answered by: RambosPR
    Date published: 2018-02-02

    Can you dyno tune A bike that has this installed on it

    Asked by: RambosPR

    Can it be used with a race tuner?

    Asked by: Rojo

    Do I need Screaming Eagle Head Pipes in order for this to work?

    Bought this item in January 2017, dealer finally got it in at the end of July. I have the stock Head Pipes and Cobra Mufflers. I was told they needed a special tool for the bungs. Was just told (3 weeks later) that now I need to purchase A whole new Screaming Eagle Exhaust system (Head Pipes and mufflers) to make this system work. Is this true? Something seems fishy!
    Asked by: Dan1948
    You can buy the drill and tap to change your O2 sensor bungs from the stock 12mm to 18 mm for the wide band sensors from Harley-Davidson - If you go back to your 12mm O2 sensors they also offer an adapter back to 12mm.
    Answered by: shanneba
    Date published: 2018-01-06
    • y_2018, m_2, d_26, h_20CST
    • bvseo_bulk, prod_bvqa, vn_bulk_2.0.7
    • cp_1, bvpage1
    • co_hasquestionsanswers, tq_14
    • loc_en_US, sid_PA-18-41000445, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_harleydavidson

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