Worldwide Shipping
We offer shipping to most countries. Simply select your country once you have added items to your basket and you'll be shown an instant price for shipping without having to advance in to the check out process.

×

200,000+ Parts & Accessories
Our catalogue has grown extensively over the years and we now source a huge range of parts and accessories from a number of distributors from round the world.

×

Order Online Or By Phone 
We're more than happy to have customers order which ever way they prefer. If you'd like to discuss anything over the phone prior to ordering we'd be delighted to help you.

×

Simple Exchange Or Refund Policy 
We know when customers receive their orders there is always the possibility of needing to exchange or return items for a refund. Rest assured if you need to, we make it simple. See T&C's for more details.

×

Price Match Promise 
We offer a price match promise on all items we sell. Use the "Seen it cheaper?" option found on the product pages to request a price match.

×
ARH Custom Custom Motorcycle Parts and Accessories ARH Custom Custom Motorcycle Parts and Accessories

Zippers Thundermax with AutoTune - Electronic Fuel Injection System for 2010-2013 Sportsters, 2008-2010 Softail Rocker, 2004-2011 Dyna and 2009 CVO Springer Models (309-485)

  • Zippers Thundermax with AutoTune - Electronic Fuel Injection System for 2010-2013 Sportsters, 2008-2010 Softail Rocker, 2004-2011 Dyna and 2009 CVO Springer Models (309-485)
$1,471.62
Add to Basket Wishlist
Seen it cheaper elsewhere?

Our Price Promise

Seen this item cheaper on another website? Let us try and match it!

We do our upmost to keep our prices competitive but due to the number of items we sell, you may occasionally find a better price advertised elsewhere. If you have seen a cheaper price on another website let us know by filling in this form. If we’re able to match the price, we’ll look to respond via email with a unique discount code within 1 hour (during working hours) so you're not waiting too long.

Your email:
Where did you see it?
Anything else to add?

Please note:

  1. The item must be identical to the one on our website listing and must show as being available.
  2. Price match applies to items sourced from authorised UK retailers only, not private sellers.
  3. Prices will only be matched from UK based websites with prices in GBP.
  4. ARH Custom reserve the right to price match only one of each item per customer.
  5. ARH Custom reserve the right to withdraw the price match policy at any time.

×

EU stock Estimated shipping date between 22 Apr and 25 Apr.

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 22 Apr and 25 Apr.

×

Does Your EFI Bike Pop? Spit? Backfire? Start Hard? Run Hot? Crappy Fuel Mileage? Would you like to have full control of your EFI system, freedom to make major or minor adjustments without a master’s degree in electronics and computers? Here is a simple solution - ThunderMax with AutoTune! The ThunderMax is a completely new product that replaces the factory Electronic Control Module (ECM), not an add-on box or signal modifier. The ThunderMax is purpose-built to deliver uncompromising performance but you don’t have to be a rocket scientist to program it or make adjustments.

Just how easy is it? In most applications, installation is a straightforward replacement of the factory module and oxygen sensors. The ThunderMax software contains hundreds of base maps that cover over 80% of popular factory and aftermarket combinations, dyno-developed on real motorcycles. Choosing a map is a quick and easy process thanks to the ThunderMax software’s sorting filters; loading a map takes less than a minute. After that, you’re ready to start the motorcycle. Once running, let the bike warm up at idle to operating temperature while the software automatically dials in idle and warm-up settings for that particular engine and you’re ready to ride! During your ride, every time you ride, the ThunderMax AutoTune module analyzes the air/fuel ratio read by the wide-band oxygen sensors at warp speed after every cylinder fire and makes any necessary adjustments to the injector pulse width to achieve the desired air/fuel ratio while compensating for variations in engine components such as injectors, fuel pressure or exhaust flow.That’s it! All you have to do is ride.

But as simple as we’ve made the ThunderMax to install and use, don’t be fooled into thinking that this not one of the most sophisticated systems you can buy for your Harley®. Using the supplied SmartLink software and communication cable, you can adjust or monitor virtually every parameter of the system:

  • Closed Loop AFR Targets
  • Idle Speed
  • Rev Limit
  • Igniting Timing
  • Speedometer Calibration
  • Decel Pop Control
  • Read Diagnostic Codes
  • Running Statistics / Logs
  • Accel Pump Simulation
  • Start Fuel Pulse
  • Engine Temp Alarm
  • Injector Size Compensation
  • Live Engine Tuning
  • Live Monitoring
  • Live Recording
  • Digital Tech Compatible
  • Supercharger Compatible
  • Warm-up Settings
  • New – Map Analyzer feature assesses AutoTuned map adjustments in a snapshot to simplify map analysis
  • New – AutoMap Creator feature speeds AutoTune mapping and improves the tune of any engine and exhaust pipe combination
  • And Many More!

ThunderMax makes more sense in the long run as the system can grow and change as your engine does - just load a new map! ThunderMax software, firmware and maps updates are free and accessible 24/7 with an Internet connection so you’re only a mouse-click away from the latest available data. The ThunderMax is designed and manufactured right here in the USA and backed by a 3-year warranty!

Specifications +

Feature: Includes Two Oxygen Sensors
Oxygen Loop Control: Closed Loop
Base Color: Black
Programming: Autotune| Downloadable Maps
Physical Connection: Plug-In (OEM Style Connectors)
Model: ThunderMax
Product Name: Electronic Control Module
Units: Kit
Type: Air/Fuel Ratio
Oxygen Sensor Band: Wide-Band

Part numbers +

  • 1020-2361
  • 309-485
  • 723253

Fitment +

    HARLEY DAVIDSON
  • Softail Deluxe - FLSTN: 2009
  • Softail Rocker - FXCW: 2008-2009
  • Softail Rocker C - FXCWC: 2008-2010
  • Dyna Super Glide - FXD: 2004-2005, 2007-2010
  • Dyna Street Bob - FXDB: 2007-2011
  • Dyna Super Glide Custom - FXDC: 2005, 2007-2011
  • Dyna Super Glide Custom (EFI) - FXDCI: 2005-2006
  • Dyna Fat Bob - FXDF: 2008-2011
  • Dyna Super Glide (EFI) - FXDI: 2004-2006
  • Dyna Low Rider - FXDL: 2007-2009
  • Dyna Low Rider (EFI) - FXDLI: 2004-2006
  • Dyna Wide Glide - FXDWG: 2004-2005, 2007-2011
  • Dyna Wide Glide (EFI) - FXDWGI: 2004-2006
  • Dyna Super Glide Sport - FXDX: 2004
  • Dyna Super Glide Sport (EFI - FXDXI: 2004-2005
  • Softail Springer CVO/SE - FXSTSSE3: 2009
  • Sportster Custom - XL 1200 C: 2010-2013
  • Sportster Low - XL 1200 L: 2010-2011
  • Nightster - XL 1200 N: 2010-2012
  • Sportster Seventy-Two - XL 1200 V: 2012-2013
  • Sportster Forty-Eight - XL 1200 X: 2010-2013
  • Sportster Custom - XL 883 C: 2010
  • Sportster SuperLow - XL 883 L: 2010-2013
  • Sportster Iron - XL 883 N: 2010-2013
  • XR 1200: 2008-2010
  • XR 1200 X: 2011-2012

Delivery +

All orders are shipped with either DPD, Fedex, UPS, DHL or Royal Mail. The courier used to ship your order is determined by ourselves once your order has been placed and normally depends on the size, volume and the shipping destination. The selected courier for your order will be quoted in your order confirmation email which you will receive once we have processed your order. Once your order has been shipped, this will be confirmed via email and you will receive a tracking number so you can keep an eye on your shipments progress.

Back In Stock Notification

Send us your email and we'll notify know when this item is available.


×

Shipping Cost

To view the total cost including shipping please advance to the basket and select your shipping country.

×
Copyright ©2008-2024 ARH Custom Ltd.