FAST Power Adder wiring harnesses are designed to work with the FAST XFI engine management systems. They include connectors, terminals, and seals. These harnesses are made of superior-quality materials to ensure long-lasting durability and performance. If you've got a FAST XFI engine management system, FAST Power Adder wiring harnesses are must-haves.

More From This Category

FAST EGT Module for XFI ECU

FAST EGT Module for XFI ECU

$1,320.86

FAST Dual Precision 0-100 PSI Sensor and Connector Kit

FAST Dual Precision 0-100 PSI Sensor and Connector Kit

$52.54

FAST XFI Fuel Inector Harness For Ford Small Block, FE and Big Block

FAST XFI Fuel Inector Harness For Ford Small Block, FE and Big Block

$300.98

FAST Wiring Pigtail, Early/TPI TPS Sensor to Metripack/LS Harness Adapter, Each

FAST Wiring Pigtail, Early/TPI TPS Sensor to Metripack/LS Harness Adapter, Each

$35.65

FAST CAN Interconnect Cable

FAST CAN Interconnect Cable

$36.53

FAST Single Sensor 200 PSI Harness XFI

FAST Single Sensor 200 PSI Harness XFI

$407.30