CADILLAC CT6 2.0T (2016–2019)

STAGE 1 & STAGE 2 PERFORMANCE SOFTWARE

OVERVIEW

Our performance software for the Cadillac CT6 2.0T LTG delivers significant improvements in power, torque, throttle response, and overall drivability. All calibrations are developed in-house and tailored specifically to the LTG platform using precise ignition, boost, torque, and airflow modeling.

Stage 1 is intended for stock or lightly modified vehicles.
Stage 2 is designed for vehicles with upgraded intake and exhaust components to support increased airflow and engine load.

WHAT STAGE 2 INCLUDES

Stage 2 consists of a full, individualized ECU recalibration. All major engine parameters—boost targets, ignition timing, fuel delivery tables, throttle response, torque limiters, airflow modeling, and load targets—are optimized to support:

• Aftermarket cat-back exhaust
• High-flow or catless downpipe
• Upgraded cold air intake

This results in improved turbo spool, stronger mid-range torque, and maximum safe power output.

FEATURES

• Speed Limiter (Governor) Removal
• Faster & Sharper Throttle Response
• Rear O2 Delete (DECAT) Included in Stage 2
• Optimized for 91–93 Octane
• Improved Fuel Efficiency
• Fully Custom ECU Reprogramming
• Enhanced Responsiveness & Drivability
• Optional Datalog Review & Optimization

SOFTWARE OPTIONS

Stage 1 (89/91 Octane)

Requires: K&N Drop-In Filter

Stage 1 with Pops & Bangs (89/91 Octane)

Requires: K&N Drop-In Filter & Cat-Back Exhaust

Stage 2 (91/93 Octane)

Requires: Cold Air Intake & Cat-Back Exhaust

Stage 2 with Pops & Bangs (91/93 Octane)

Requires: Cold Air Intake & Cat-Back Exhaust

BEFORE / AFTER POWER GAINS

Performance Gains Overview

Highlights

• Up to +61 HP over stock (Stage 2)
• Up to +55 lb-ft torque improvement
• Noticeably improved turbo spool
• Sharper throttle response
• Stronger mid-range acceleration

TECHNICAL INFORMATION

Production Years: 2016–2019
Engine: 2.0T LTG
ECU Manufacturer: Delco
ECU Model: E80
Time Required: 3–4 hours

Required Parts – Stage 2

• Cold Air Intake
• Cat-Back Exhaust

Recommended Parts – Stage 2

• High-flow or Catless Downpipe

PROGRAMMING OPTIONS

The CT6 2.0T is fully compatible with the BBS OBD2 Flashing Tool, allowing full OBD read/write capabilities without removing the ECU.

BBS FLASHING INSTRUCTIONS (OBD2)

1. Install BBS Software

• Install the BBS flashing program on your Windows laptop.
• Connect your Senselock USB dongle (if applicable).
• Ensure all drivers are fully installed.

2. Connect to the Vehicle

• Plug the BBS OBD2 cable into the vehicle’s diagnostic port.
• Connect the USB end to your laptop.
• Turn the ignition ON (engine OFF).

3. Perform the Initial Read

• Launch the BBS software.
• Select the appropriate LTG/E80 protocol.
• Start the ECU read process.
• Save the file and upload it to AMT Tuning.

4. Receive Your Tuned File

• Standard turnaround: 24–48 hours.
• You will receive your tuned file via email or download link.

5. Flash the Tune

• Load the modified file into the BBS software.
• Write the file via OBD.
• Do NOT disconnect power or cycle ignition during writing.

6. Switching Tunes

• The BBS tool stores and flashes one tune at a time.
• Additional files (Stage upgrades, Pops & Bangs, options) can be requested at any time.

7. Stock File

Your original stock file is safely stored and can be restored at any time.