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Win this M240i!
Every $50 spent = 1 entry*

No purchase necessary to enter or win. See official rules.

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Turner N52 Performance Software

High performance street tune without compromise - featuring the Turner Flash DIY tool for easily tuning your BMW in your driveway or garage. Gains of up to 19hp/19ft-lbs!
Turner Motorsport
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Turner N52 Performance Software

Starting at: $396.71 633.34
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Availability: In Stock
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Cold Air Intake
Installed an aFe, Euro airbox, or similar cold air intake? Select this.
3076112 ADD-INTAKE
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Sport Exhaust
Installed a cat-back exhaust system? Select this.
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Mail-In reflash (I will ship my ECU).
Ideal if you can be without a car for 72 hours; lower cost than the DIY flashing tool.

Product Details

Reliability and low cost of ownership are two great reasons to own a 330i over its higher-powered siblings - the 335i and M3; although no slouch, power is not one the N52's strong suits. How about changing that?

Years of experience building and racing E90 328i cars taught Turner Motorsport more than a thing or two about tuning the N52. Consistently one of the fastest cars in the pack, Turner's Grand-Am KONI Challenge 328i was dialed in for power and reliability. Combine this racing experience with years of operating a service shop, Will Turner's team knows the importance of delivering an all-around improved driving experience. More than just a simple pedal remap or mixture adjustment, the Turner N52 tune has been street and dyno-optimized to deliver such an experience to put a smile on your face. You will not be disappointed.

What does Turner change in my car's ECU? While much of Turner's performance software is proprietary and under wraps, they do change:

  • Mapping for fuel, ignition, VANOS, camshaft timing for improved power and torque, with special attention paid to low end torque. This results in a more real-world useable powerband that is more enjoyable in traffic.
  • Mapping for pedal input, throttle response, and torque limiters. This results in crisper engine feedback from hitting the gas, and smoother power delivery.

Expect crank power gains up to 19hp, 19ft-lbs of torque, while retaining all factory emissions equipment.

There are two ways to get a Turner tune on your N52:

  • Mail in your ECU. We will contact you with instructions on removing your car's ECU and a Next Day Air shipping label to minimize downtime. One day transit time to us, one day to tune your ECU, one day transit back to you - expect three days downtime. 
  • Tune it yourself - at home. We will mail you easy instructions and a Turner Flash DIY tuning tool that will allow you to plug your car into your Windows laptop to tune your car. You email in your stock file, and a tuned file is emailed back to you - no downtime. 

Either method you chose, we will be in touch with you for specifics on your vehicle and desired tune. 

 *Dyno HP and Torque figures are not guaranteed to test identically to posted numbers on your vehicle. Metrics we present were achieved in our own testing environment, however, a variety of factors may affect results of the tune on your vehicle*

This Part Fits the Following Vehicles

Make Model Submodel Engine
BMW E60 530i N52 3.0L
BMW E60 530xi N52 3.0L
BMW E61 530xi N52 3.0L
BMW E70 X5 N52 3.0L
BMW E70 X5 xDrive30i N52 3.0L
BMW E83 X3 N52 3.0L
BMW E90 330i N52 3.0L
BMW E90 330xi N52 3.0L
BMW Z4 3.0Si N52 3.0L
*The above product applications have been written by ECS Tuning. All warranties, product application, fitment, and performance are the responsibility of ECS Tuning. For additional information see the terms of use.


ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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