Need Help?
FS3 Fuel Saver

FS3 Fuel Saver

Regular price $129.95 $89.95 Sale

The FS3 is our first fuel saving chip, based on the powerful VP12. 

This model has been designed to tune your ECU to produce serious gains in fuel efficiency with no loss of power. 

Like all of our Chips the FS3 is dynamic – which means the FS3 will consider oxygen levels in the exhaust, along with engine speed and load, intake air temperature and volume, and many other variables to determine the most efficient fuel delivery rate and timing at up to 256 separate load points.

 The FS3 is a vehicle specific, custom programmed 20MHz Microcontroller. It utilizes its high speed serial input/output to communicate directly with the ECU through the OBD-II port.



 The FS3 comes with 4 tap-in connectors which you connect to 4 wires behind the face of the vehicles OBD-2 port. Instructions are included on which to connect to.  This unit is NOT plug and play.  


One (1) FS3 Unit

Four (4) 3M Brand Tap-in connectors

Two (2) Velcro Pieces

Two (2) Zip Ties

One (1) Alcohol Wipe Pad

One (1) Instruction Manual

One (1) Product Box

Recommended modifications:

– K&N or equivalent non-restrictive intake 

The FS3 is compatible with factory equipped Turbo/Superchargers, diesel engines, Flex-Fuel, & HHO supplement systems.

It is NOT compatible with hybrid engine options, propane, or natural-gas.


Is this the right one for my engine?

The FS3 has room for up to 8 performance maps, which we use to cover different engine options for a particular vehicle. For example, the 1999 Ford Mustang Volo Chip will be compatible with both the 3.8L V6 and the 4.6L V8. The FS3 will read the first few bytes of data from your ECU during calibration to determine which map to use.


When you order, please include your Year/Make/Model/Engine during checkout in the notes section for us to set it up before shipping.