5.7 / 6.1L HEMI Tuning

Complete kits include everything required to install high performance FAST™ XFI™ Fuel Injection for precise engine management and compatibility...

FAST XFI CAN Retro-Fit Kit Connectors. Contact Southeast Performance for details and pricing.

Designed for a complete standalone FAST Electronic Fuel Injection (EFI) system that replaces your factory computer.  XFI EFI system features a...

FAST XFI  Circuit wiring harnesses features all OEM-style connectors high temperature oil resistant wiring and puncture-resistant outer sheathing...

The FAST XFI idle air control allows the ECU system to control engine idle speed by controlling airflow around the throttle body blades.Contact...

(Serial Port)The DiabloSport U7777 is necessary equipment if you need to update your DiabloSport Predator from the internet. It includes a 9-pin...

2005-2007 Chrysler 300C 5.7/6.1 Hemi 2005-2007 Dodge Magnum 5.7/6.1 Hemi 2006-2007 Dodge Charger 5.7/6.1 Hemi 2006-2007 Jeep Grand Cherokee SRT-8 6.1...

(USB)The DiabloSport U7778 is necessary equipment if you need to update your DiabloSport Predator from the internet. It includes a USB adapter and a...

A fully functional handheld tune loader for 2011-2012 HEMI Vehicles!   Available and shipping now the API Black Box Handheld Tuner is fully...

The Diablo Trinity 1000 Tuners The Diablosport Trinity T-1000 has been updated to include support for the following vehicles: 2011-2013 Jeep...

ECU powertrain calibration / integration support for select Chrysler, Dodge and Jeep vehicles to the Performance Aftermarket. Calibrations are...

The FAST XIM Ignition Module lets you easily install the FAST XFI Fuel Injection. System on many distributor less ignition type EFI engines. It’s a...

This Mopar TCM is one of the most aggressive 6.1 HEMI TCM available.  If you want the highest shift points on your Dodge Challenger, Charger,...