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Engine Code:

S38B36

$0.00

Unleash the True Potential of Your BMW S38 BIG 6 with 22RPD

Our meticulously engineered tunes are designed to maximize both performance and reliability under all driving conditions. Leveraging decades of BMW engineering expertise, our S38 tune packages are crafted to enhance every aspect of your vehicle's engine, delivering not only increased power but also improved drivability.

Equipped with state-of-the-art facilities and an in-depth understanding of BMW dynamics, our expert team provides properly developed tuning options tailored to your specific setup and performance ambitions. We focus on comprehensive calibration that integrates every component, ensuring flawless integration and optimum performance. But we don’t stop there—we back it up with industry-leading support and systems to make your dreams a reality.

As you likely know, the S38 and M88 engines have huge potential for tuning, with gains up to 40HP and 40TQ. This applies to both the earlier Motronic 1.7 and later Motronic 3.3 vehicles. Before ordering, please check which DME you have. We support many ECUs, but sometimes we prefer to have the original chip to work from, especially if you have a grey market car. Standard ECUs are the "079," "179," and "350" for reference.

OTS and Custom Tunes Available

Unique to this platform, we offer both OTS and custom tunes to meet the distinctly different needs of S38 and M88 owners.

Custom Tuning Package Includes:

  • Custom Adjustments: Tailored specifically for NA setups. We have had numerous S38s and M88s on the dyno from E24, E28, and E34 applications. It’s likely we’ve worked with your exact modifications, but we’re here to build a tune that meets your unique needs.
  • Tailored Solutions: Adjustments for specific fuel quality and modifications.
  • Industry-Leading Support: Swift response times via our dedicated support portal, staffed by a team committed to your tuning success.

Explore our detailed package descriptions below each package type to dive deeper into our customization options. Each section provides further details to assist you in selecting the perfect setup for your BMW.

Experience the 22RPD difference: a tuning solution optimized by engineers and personalized to meet your unique needs. With the best industry support on your side, our team is dedicated to providing unparalleled service throughout your tuning journey. Elevate your driving experience by selecting the exact specifications designed to fit your performance requirements.

Looking for more configuration options? Email us!

Need help deciding which options? Check out our Glossary!


Tune Configuration

Tune Package Type

OTS TUNE
$229

S38/M88 OTS Tune Package

The S38/M88 engine, BMW’s largest inline-six, is legendary for its power and performance. At 22RPD, we offer two distinct tuning options for the S38: a reliable OTS (Off-The-Shelf) tune and a highly customizable option for those looking to push their engine further.

OTS Tune

Our OTS tune for the S38 is perfect for those seeking a straightforward upgrade. This package typically nets an impressive 40hp and 40tq in most applications, with a fixed 200 RPM increase over the stock setup. Designed to deliver consistent gains without the need for additional modifications, this tune is an excellent choice for those who want a straightforward performance boost.

If you're looking for something more customizable, please see the custom tune package. We provide no revisions to this chip and do not allow upgrading between tune packages. For revisions and more customization, the custom tune package is available.

Naturally Aspirated Tune
$400

S38/M88 Tune Package

The S38/M88 engine, BMW’s largest inline-six, is legendary for its power and performance. At 22RPD, we offer two distinct tuning options for the S38: a reliable OTS (Off-The-Shelf) tune and a highly customizable option for those looking to push their engine further.

Custom Tune

For those who want to maximize the potential of their S38 or have more unique modifications our custom tuning option offers unparalleled flexibility. Whether you're running stock components or have made significant modifications, we tailor the tune to your specific setup, ensuring that every aspect of your engine is optimized for peak performance. This option allows for a deeper dive into your engine’s capabilities, adjusting parameters to match your exact needs and goals and we provide included revisions of the tune based on dyno plots with afr.

  • Customizable Parameters: Tailored to your specific exhaust, intake, cam, and fuel setup.
  • Performance Gains: Generally greater than OTS, depending on modifications.
  • RPM and Throttle Adjustments: Customized to meet your desires

Required Products

These are the products required for the tune. You are not required to purchase these products from us if you already have them or an acceptable substitute. Please confirm any substitutions before placing your order.

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Notes (Optional)

Leave us some notes about your tune goals or specific engine modifications. For best outcome please include your vin here also.

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