ThunderMax Electronic Fuel Injection Motorcycle Performance Parts
Electronic Fuel Injection


  ThunderMax EFI  
           ThunderMax® EFI with AutoTune System 
Motorcycle Electronic Fuel Injection Module
AutoTune Demo!
Easiest Aftermarket System to Use
Engines Run Cooler & Accelerate Better in Any Ambient Condition
Best Fuel Mileage & Outstanding Performance
Highest Level of Customer Satisfaction
3 Year Warranty
And many more!
For 2001-2009 H-D® Big Twin Models*, Sportster® 2007-2009, V-Rod® 2002-2009
*Does not fit 08-09 TBW FL models
Improve the performance and fuel mileage of your H-D® motorcycle without compromising over-all power output.

Have access to make adjustments to your system without a master’s degree in electronics and computers.

The ThunderMax EFI System with AutoTune is purpose-built to deliver uncompromising performance, and you don’t have to be a rocket scientist to install it, program it or make adjustments. The ThunderMax system is a Wide-Band, Closed-Loop system which means it continually and automatically adjusts your air-fuel ratios every time you ride regardless of changes in ambient conditions – so all you have to do is ride and enjoy!

The ThunderMax System is that simple, click here to find out more!

NOTICE: Not legal for sale or use in States where emission laws apply.
 
   


Fuel Injection Manuals


Fuel Injection Software

Instrumentation

Motorcycle Digital Speedometer

Built-in Performance Computer
Displays engine vitals
Configurable alarms
Digital Speedometer...


Fuel Injection

Magnetti Marelli EFI Conversion Kit
Easy Plug in Installation
Increased Horse Power, Torque, and Fuel Economy
Minimizes exhaust popping
Adjustable Idle and RPM Limit
Engine/Exhaust specific map included
Marelli Conversion Kit...

EFI Kit for Jims 120
Instant starting
Consistent idle
Minimizes exhaust popping
Lowers engine temparatures
Adjustable Idle and RPM Limit
EFI Kit for Jim's 120"...

EFI Components

1 Piece Throttle Body/Manifold
For 2006-up, Delphi®-equipped H-D Models
1-Piece, Unit Construction
Includes new, high-strength intake flanges
Available for most kits from 95” to 124”
1-PC Throttle Body/Manifold...


Air Filter Kits

Motorcycle Air Filter Kits
ThunderBird Air Filter Kits
ThunderMax Air Cleaner Kits
Chrome Air Filter Covers
Replacement Air Filters
Air Filter Kits...



Accessories

Motorcycle Accessories
Serial Port Adapter
Bench-Top Power Supply
O2 Sensor Bungs
12ft Comm. Cable
PigTail Harness
Data Port 'Y' Harness
Accessories...


Nitrous Assist

Motorcycle Nitrous Assist
Adds 30 extra horsepower
Easy installation
Plugs into factory harness
Nitrous Assist Dry System...


Ignition

Motorcycle Digital Ignition
Mounts directly in place of the original equipment
Integrated high-output single fire operation
Programmable spark timing and rev-limit
Digital Ignition...

Motorcycle Crank Trigger Ignition Kit
Complete ignition system: module, coil, and wires!
Integrated high-output single fire operation
Fully programmable spark timing and rev-limit
Crank Trigger Ignition Kit...

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