Real horsepower gains without sacrificing safety only happens when every detail is dialed in. That’s what iE does best. The iE IS38 Map Pack upgrades your GTI’s factory engine computer and iE Apex Tune Suite with custom programming built specifically for the larger IHI IS38 turbocharger. Smooth, predictable power with none of the harshness, lag, or unpredictability of generic setups. More power, stronger acceleration, and a pull that keeps building long after the stock turbo gives up.
The IS38 turbocharger comes factory-equipped on the Golf R and Audi S3, making it a proven, direct bolt-on upgrade for GTI, GLI, and A3 2.0T engines. Larger than the stock IS20 turbo, it flows more air to deliver a serious increase in power and acceleration. The iE IS38 Map Pack upgrades your factory engine computer with custom programming calibrated specifically for the IS38 turbo, eliminating risky behavior and safely releasing its full potential. Smooth, safe power with a confident pull and the refined drivability iE is known for.
Enjoy beyond–Golf R performance in your GTI without sacrificing spool, comfort, or daily drivability. After months of development and real-world testing across different cars, climates, and driving conditions, this IS38 calibration delivers power you can rely on everywhere. Intelligent AutoProtect safety logic constantly monitors engine conditions and instantly reduces power if something isn’t right.
| Fuel | Required Upgrades |
|---|---|
| 91 / 93 Octane | Air Intake Intercooler Downpipe IS38 Turbo Transmission Tune IS38 Map Pack APEX Tune Suite |
| TrueFlex E60-E70 Blend | Air Intake Intercooler Downpipe IS38 Turbo TrueFlex Kit HPFP Upgrade Transmission Tune IS38 Map Pack APEX Tune Suite |
There is no waiting for an "upgrade license" or back-and-forth emails. When you purchase iE Map Packs, our server identifies your unique POWERlink Serial Number and loads the balance directly to your device via the cloud. No file attachments. No downtime. You simply open the app, and your unlock credits are waiting.
We kept this simple. Just locate the Serial Number starting with "V4" on the back of your dongle and enter it at checkout. Once purchased, connect your POWERlink to the app via Bluetooth. The system will auto-sync via the cloud, and your credits will appear in an hour or less.
No. The Map Pack only includes the ECU calibration required to run the IS38 turbo. The turbocharger and supporting hardware must be purchased separately.
Yes. This Map Pack requires an existing iE Apex ECU Tune Suite. The Map Pack expands your tune with the calibration required to safely run the IS38 turbocharger.
Yes. The IS38 turbo is a factory turbocharger used on the Golf R, and the iE calibration is engineered to maintain smooth drivability and reliability while increasing performance.
Running the IS38 turbo requires supporting upgrades such as an intercooler, intake system, and performance downpipe. Always review the hardware guide on this page to ensure your vehicle is properly equipped.
Yes. The Map Pack is installed using the iE POWERlink™ OBD-II tuning cable and mobile app, allowing you to flash your ECU directly from your phone.
Yes. The GT2260S turbo and calibration were engineered to deliver maximum safe power on the stock EA888 engine. Advanced AutoProtect™ safety programming continuously monitors engine conditions and reduces power if something isn’t right.
With the proper supporting hardware installed, the iE IS38 calibration can produce up to 420 horsepower on MQB 2.0T engines including the GTI, GLI, and Audi A3.
It comes down to control, refinement, and technology. Many off-the-shelf tunes are conservative and locked. Custom tuning often requires weeks of revisions with limited feature support. iE POWERlink delivers professional-grade calibration, advanced safety systems, and in-runtime adjustable features you control instantly from your phone. It’s not just a tune. It’s a live ECU platform.
Eurosport Performance does not have live inventory. Although we aim shipping out not stocked products within 5 business days, supply constraints, import proceedures and product availability can cause additionnal delays. Please refer to the table below for more accurate details.
In stock - We have the item in stock at our warehouse and you can expect fulfillment within 24 hours.
Usually ships within 5-7 business days - We must import this product from our supplier or the manufacturer. Standard import proceedures take between 5-7 business days and you can expect fulfillment within 8 business days.
Back ordered - This product is out of stock at our warehouse with units in transit from our supplier. Fulfillment can vary.
If you wish to have a more accurate ETA, please send us a message at info@es-performance.com and we will respond within 24-48h.
12 Months
All products sold by Eurosport Performance are warrantied against manufacturing defects according to the manufacturer's warranty policy*. Warranty does not cover abuse, misuse, damages caused from improper manipulation, normal wear and tear, improper installation, or damages resulting from racing. Warranties only apply to the original owner. If a product is found defective, the customer will receive, at the discretion of Eurosport Performance, a replacement part at no extra cost. Eurosport Performance is not responsible for fitment inaccuracies regardings products sold outside of the United States or Canada. Please confirm compatibility prior to placing an order or contact us for more information.
* Conditions may apply. Please visit our Refund Policy or contact us at info@es-performance.com
