IHI IS38 / 9VA04 Performance Upgrade Turbo for Mk7, Mk7.5 Golf, GTI and 8V A3 (OEM Audi S3 / VW Golf R Turbo)

Everything you need to Know about the IS38 Turbo

The IHI IS38 / 9VA04 turbo is the highest performance, quickest spooling OEM+ turbo upgrade available for the VW Mk7 / Mk7.5 Golf, GTI and Audi 8V A3.

Give your VW Mk7 / Mk7.5 Golf, GTI or Audi 8V A3 the performance that the Golf R, Audi S3 and TTS come equipped with from the Audi / VW factory. This is a brand new OEM factory IS38 turbocharger and it is the current revision. This turbocharger is a direct bolt on replacement for your factory IS12 or IS20 turbo, with the only extra modification required is a software upgrade (Tune / Calibration) to match the turbo upgrade.

Power Numbers

After installing this turbo (bolt on, drop in) you can expect to gain +149 FT-LBS of torque and +170 WHP bringing the power numbers up to 397 HP 403 FT-LBS with proper tuning, exhaust system, intercooler and intake.

IS38 Performance Turbo Upgrade

The 2 most common turbo’s which are swapped for the IS38 are the IS12 and IS20 turbos. The IS12 turbo is mounted from the factory on VW and Audi 1.8t MQB engines, and the IS20 is mounted on 2.0t lower output MQB engines. When upgrading any of the following turbos you will need to install new software on your engines computer to properly run the vehicle with an IS38 turbo on it.

Audi S3 VW Golf R IS38 Turbo (Performance Upgrade for Mk7, Mk7.5 Golf, GTI and 8V A3)

What to expect when upgrading to an IS38 turbo?

When properly tuned the IHI IS38 turbo will give you more power. Often times people are concerned that a larger turbo will cause more turbo lag. While this is a legitimate concern, the IS38 is not drastically larger and will only result in a few hundred RPM difference for max boost, which is hardly noticeable in a real world application.