Unitronic® Stage 2+ IS38 ECU Performance Software is now available for the 1.8TSI MQB engine (CXB/CNS/CJS/DGX)
found in the 2015-2019 Volkswagen® Golf®*, Golf Sportwagen®, Golf Alltrack®, and 2015-2016 Audi® A3®.

The IS38 equipped 1.8TSI MQB produces 352HP / 324 LB-FT TQ with Unitronic’s Stage 2+ IS38 ECU calibration with 93octane/98ron fuel, boasting massive gains of +182HP/+139LB-FT over VW’s advertised output.
Unitronic Stage 2+ IS38 requires a Genuine IS38 Turbocharger, (factory equipment on the Golf R®/S3® 2.0TSI MQB engines), Unitronic Downpipe, Turbo Inlet Elbow, Carbon Fiber Intake System with Air Duct, and Intercooler Upgrade,
with recommended upgrades including Unitronic’s Charge Pipe Kit. Unitronic’s Stage 2+ IS38 ECU Performance Software also includes popular features like Left-Foot Braking, Exhaust Pops and Bangs, and EU-style Start-Up Overrun.


Please confirm fitment with your local Unitronic Authorized Dealer or by clicking the "SELECT A CAR" banner below.

These platforms are supported with Unitronic’s UniCONNECT+ cable, empowering you to tune it yourself from the comfort of your own home or garage.
The cable and associated software allows you to install, and upgrade, your new Unitronic ECU and TCU tunes, flash back to stock file in addition to reading and clearing DTCs.
This is a perfect option for people who like to be autonomous or who live far from a Unitronic Authorized Dealer!


Golf 1.8TSI
Golf Sportwagen 1.8TSI
Golf Alltrack 1.8TSI
Audi A3 1.8TSI

*Not available for Automatic Transmission (09G/09S) equipped models. DSG equipped models require Unitronic Stage 2 DSG Performance Software.

**Subject to ECU box code availability. Some features may not be available for all ECU box codes and may require a UniCONNECT+ cable.