SKU: 26423947182

ThunderMax ECM With Integral Auto Tune System For Harley M8 Softail 21-24

Sale price$526.93 Regular price$585.48
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Ships within 48 hours · Estimated delivery Aug 30 - Sep 4

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Description

ThunderMax ECM With Integral Auto Tune System For Harley M8 Softail 21-24ThunderMax ECM With Integral Auto Tune System For Harley M8 Softail 21 24 Are you ready to get every ounce of horsepower out of your M8 softail? This tuner will do exactly that. Every degree and a half of throttle; every 256 RPM, there is a fueling point that is automatically adjusted. That means more control and a smoother running engine. With the built in barometric sensor you never have to think about ambient air changes. WideBand O2 sensors

ThunderMax ECM With Integral Auto Tune System For Harley M8 Softail 21-24

Are you ready to get every ounce of horsepower out of your M8 softail? This tuner will do exactly that. Every degree and a half of throttle; every 256 RPM, there is a fueling point that is automatically adjusted. That means more control and a smoother running engine. With the built in barometric sensor you never have to think about ambient air changes. WideBand O2 sensors constantly read the Air Fuel Ratio and give live, real time feedback to the ECM. That means, no “accepting” the changes made to the map, once you key off the changes are written. The ThunderMax ECM is fully adjustable with the ThunderMax tuning software or can be used just by loading a basemap. The choice is yours.

ThunderMax is an industry award winning, performance ECM designed specifically for EFI equipped Harley Davidson® motorcycles. This highly advanced, stand-alone tuning system utilizes proprietary AutoTune technology with wide-band oxygen sensors to deliver unmatched performance and rideability. ThunderMax comes 100% assembled, ready to install with no wire-cutting or splicing required. Simply replace the factory ECM and oxygen sensors, load a map, and enjoy your new ride!

Features:

  • 2 wide-band Bosch 5-wire oxygen sensors (18 mm) with AutoTune connection harness
  • ThunderMax quick start easy install and printable comprehensive users manual
  • Never outgrow it - easily accommodates bike changes
  • No Dyno required - automatically tunes for riding style and riding conditions
  • ThunderMax performance engine control module (ECM)
  • 100% engineered and made in the USA
  • Easy to install and simple to use



Note:

All sales on tuners are final, no returns. 

    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 26423947182

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    4.8 ★★★★★
    Based on 25 reviews
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    A
    Verified Purchase
    Amazon Customer
    Cuba, US
    ★★★★★ 5
    Great item
    Exactly what I was looking for.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 28, 2026
    A
    Verified Purchase
    Alyssa Nickel
    Grantham, US
    ★★★★★ 4
    Lathers well, could use a better closure.
    Good material that lathers up well, but a real drawstring closure would have been way better than the method used here.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 12, 2026
    E
    Verified Purchase
    Erin E.
    Cuba, US
    ★★★★★ 5
    Perfect Flavor: NONE
    Style: Unflavored (Pack of 1)
    I see reviews writing "it tastes bad". Get over it you big babies! It doesn't. I have an allergy to peppermint and other unnatural man-made toxic flavorings and this is perfect! After the first few times the flavor is irrelevant and you get used to it. It cleans and cleans well. I don't wake up after brushing before going to bed with a mouth full of slimy coating on my teeth and bad aftertaste like I did with the other fake flavored toothpastes. I use Cleure for all my teeth brushing and haven't had any dental problems. The paste is smooth and I don't have irritation. It's great...I just wish the price point was a little lower since there's less added garbage in it.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 7, 2026
    K
    Verified Purchase
    Kiwi
    Port Orchard, US
    ★★★★★ 5
    Gentle, No harsh ingredients, no taste!
    Style: Unflavored (Pack of 1)
    This is the toothpaste you want if you want no additives or nothing. There's really no taste to it, but that's the whole idea you're getting no additives no nothing. It does have baking soda, and xylitol these are two great ingredients but overall it's very gentle. If you're having any problems with skin or anything and you feel it could be from either fluoride, mint flavoring, SLS, or coconut oil or all the other stuff they put in there give this a try! I'm on my second tube! Yes you're not going to feel as super clean as the other ones but that's because it's not stripping everything off your teeth like the other ones do it's very gentle and if there's any issues with sensitivity or anything like that this is the way to go.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on November 29, 2025
    A
    Verified Purchase
    Arg
    Los Angeles, US
    ★★★★★ 5
    Good ingredients
    Style: Unflavored (Pack of 1)
    The ingredients in this may appear to be boring, but for a fragrance-free, flavor free, toothpaste this one is not bad at all. It has a little bit of sweetener in it and it does a good job at leaving my mouth feeling clean and my teeth polished. I am very happy with this product and it is replacing a similar product that I was not happy with. This is a product I will reorder and continue to use as I am happy with the cleanliness and freshness.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 14, 2026

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