S&S Variable Fuel Injection module. Replaces stock 36 pin Delphi module in 2001 - up Harley-Davidson big twin models, except 2008 touring models.

VARIABLE FUEL INJECTION MODULES (VFI)

DELPHI® STYLE S&S® VFI MODULE

FITMENT

• 2001–'10 Harley-Davidson® EFI Softail® models

• 2002–'07 EFI touring models

• 2004–'11 EFI Dyna® models

IMPROVED FEATURES:

• New state of the art components replace outdated materials

• Improved waterproof housing

• More durable USB-C connector

• Faster processor for increased communication speed

• Protune II 4.0, available to download at sscycle.com/protune

• EC-approved

FEATURES AND BENEFITS

• Replaces stock Harley-Davidson® fuel injection modules—

plugs directly into stock wiring harness

• ProTune II software is available for free download at:

sscycle.com/protune

• Three stage engine overheat protection helps prevent possible engine damage

• Altitude compensation automatically adjusts for altitude variations

• Live tuning allows manual changes to maps while the engine is running

• Self diagnostics and actuator test functions help tuning and verify proper

installation/operation

• Engine light can be programmed to function as a shift light

• Closed loop capable

• Optional closed loop sensor kit and knock sensor kit extend module capabilities

• Speedometer calibration function for 2004–up Harley-Davidson® models (does not

require installation of separate speedometer calibrator)

REPLACEMENT PARTS FOR VFI MODULES

Description Part #

Service Kit, O2 Sensor USA

4 106-2061

Service Kit, DTM Pin 55-1521

Service Kit, Oxygen Sensor Boss USA USA

4 55-6071-S

Service Kit, Subharness (Delphi Style) 55-1595

Hardware Kit (USB Cover) 55-5091

All current production S&S modules are closed loop compatible, and all older S&S modules can be updated with current calibration by simply downloading software

from the S&S website at sscycle.com/protune

Please note that maps created for older versions of the VFI software are not compatible with the new closed loop software, however they can be converted to closed

loop if desired.

S&S VFI systems installed on 2004–up Harley-Davidson® models incorporate a speedometer calibration feature.

Due to the extreme range of control offered by the S&S VFI modules, we recommend that they be installed and tuned by S&S Certified VFI Tuning Centers.

Check www.sscycle.com to find a tuning center near you. NOTES

106-2066

CLOSED LOOP CAPABILITY

When equipped with a dual closed loop sensor kit and running in closed loop mode,

VFI tuning becomes a breeze! S&S supplies base maps for several displacement groups,

creating a starting point to get bikes up and running. Utilizing dual oxygen sensors

(sold separately) placed in the exhaust, the S&S closed loop system modifies the base

fuel map to meet the specific requirements of your engine!

• Automatic tuning on the street or on the dyno

• Each cylinder is tuned individually

• Fuel map changes are saved in the module & can be merged with the pre-loaded base map

• Works with stock oxygen sensors used on late model Harley-Davidson® motorcycles

Closed loop VFI can also automatically compensate fuel delivery for modifications

creating up to a 20 hp gain, such as changes in:

• Displacement

• Cams

• Exhaust

• Head porting or installation of aftermarket heads

KIT CONTENTS

• Delphi® style S&S VFI module

• USB port cover kit

• Installation instructions

S&S Part #: 55-5090
Fitment: Twin Cam 88 and TC 96