How Custom EFI Live Tuning Works

At Piston Twistin LLC, we provide remote EFI Live tuning, allowing you to have your truck tuned from anywhere in the world.

We offer three different methods for tuning your truck.

 

Please see below for details:

Option 1: Bench Flash Your ECM (Best for Stock Applications)

**Description**: If you plan on keeping your truck’s setup unchanged for a while, this is the ideal option for you.

 

**How to Bench Flash**:

 

1. Remove Your ECM: Disconnect the Engine Control Module (ECM) from your truck.

 

2. Ship to Us: Send the ECM to us for bench flashing.

 

3. Tuning Process: We create and flash your custom tune onto the ECM. All bench flash orders include free transmission tuning.

 

4. Return Shipping: We ship the ECM back to you within 1-2 business days.

 

**Note**: Your truck will be inoperable until you reinstall the ECM.

Cost: $500 ( Includes free transmission tuning MUST SEND TCM )

Option 2: Handheld Device - EFI Live Autocal V3 (Best for Built Trucks)

**Description**: If you plan to make future modifications to your truck, we recommend the EFI Live Autocal V3 handheld device.

 

**How it Works**:

 

1. Purchase the Device: Buy the EFI Live Autocal V3 from us. It will come preloaded with your custom tunes.

 

2. Receive Updates: Use the device to receive new and revised tunes from us as you make modifications.

 

3. Additional Features: The device also functions as a code scanner for added convenience.

 

**Cost**: Starting at $1000

Option 3: You Already Own a Handheld Device (Autocal or FlashScan)

**Description**: If you already own an EFI Live handheld device, there's no need to purchase a new one.

 

**How it Works**:

 

1. Unlink Your Device: Unlink your device from the previous tuner. Instructions can be found (https://www.efilive.com/autocal-unlink.html).

 

2. Purchase a VIN License: If the device wasn’t previously connected to your truck, purchase a VIN license to open up a slot for it. More details (https://www.efilive.com/autocal-vin-license.html).

 

3. Download Tunes: We will email you your custom tune files in BBX format. Use a laptop to download the new tunes to your device using the EFI Live application.

 

What is Datalogging? 

 

**Datalogging** is the process of recording data from your truck’s performance while driving.

1. Plug in the Device: Connect your EFI Live device and select the datalogging option.

 

2. Full Throttle Pull: Perform a full throttle pull, typically from 20-60 MPH.

 

3. Send the Log: Email the recorded log to us at [PistonTwistin@gmail.com]

 

4. Tune Revision: We analyze the data and revise your tune accordingly.