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BMW MSV70 ECU Tune (2006-2008 Z4 / E85, E86)

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Over the years we have advanced our knowledge of the MSV70 to produce calibrations for stock or supercharged vehicles, and everything in between. Our results speak for themselves!

Our FAQ – MSV70 page provides details the tuning process, what to expect, and information on our Severn Tuning Flasher tool.

Off-the-Shelf (OTS) Standard Tune: This is our “OEM plus” tune, ideal for stock or near-stock naturally aspirated engines. Expect approximately +12 max horsepower gains on a completely stock car, and more with additional modifications such as catless headers. This tune can be optimized to support basic bolt-ons such as aftermarket intakes, catless headers, and free-flow exhaust systems. Full- and part-throttle tuning is optimized through adjustment of VANOS, ignition timing advance, engine torque request, throttle response, lambda targets, DTC delete (as required) and other proprietary revisions. Despite this tune’s classification as off-the-shelf, we do offer a degree of customization options which allow the customer to expressly tailor our tune to their desires. Example options include Vmax/top speed limiter delete, rev limit increase, and throttle mapping sensitivity adjustment (e.g., sport mode throttle response when the ECU is in normal mode, and our proprietary sport plus throttle response when sport mode is activated). Feel free to contact us for a full list of options.

MAF-Based Custom Tune: Ideal for vehicles with more extensive modifications than basic bolt-ons, such as aftermarket camshafts or MILVs. This tune also targets customers that want to get every horsepower they can get out of their naturally aspirated street or track-only car. Each custom tune uses our OTS standard tune as a base. The calibration is then revised based on customer-provided data logs of the vehicle in action- whether on the street, track, or dyno. We utilize sophisticated data analysis software throughout the revision process which ensures the optimal calibration is produced with the minimum number of logging sessions. We build ignition timing advance, fueling, VANOS, and Valvetronic maps exclusively for your vehicle. Tuning for E85 fuel capability is a no-cost option.

Supercharged Alpha-N: This tuning service allows the end user to take their basic supercharger kit to the next level with support for more boost, intercooling, and water/methanol injection. Alternative fuels, larger injectors, and high boost are our specialty!


Customer Loyalty

When upgrading between each stage of tune, customers are credited for their previous purchase and only pay the difference in price between tunes. For example, if a customer has already purchased a naturally aspirated ECU tune and wishes to add forced induction, the customer will only pay $300 to upgrade to a supercharged alpha-n ECU tune.

Disclaimer - Flash tuning is separate from coding and diagnostics. It will not solve underlying mechanical or electronic issues, and in some cases, it can make problems worse. We highly recommend you consider tuning to be a final ECU calibration and the very last step when optimizing your vehicle. Recommended for off-road use only!

More Info / FAQ