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BMW M3 E46 XperTune Performance Software - FS.BMW.E46.ET Control Modules

BMW M3 E46 XperTune Performance Software - FS.BMW.E46.ET

External: sold by Performance Corvettes on its own website Performance Corvettes Fab Speed performancecorvettes.com

External product

This product is sold and fulfilled by Performance Corvettes on its own online store, performancecorvettes.com (opens in a new tab). Payment, shipping, returns and warranty are handled by the store, not by kayparts. Details come from the store's public catalog (last checked 14 hours ago) and may have changed.

Product Overview

  • Sold by: Performance Corvettes
  • Store: performancecorvettes.com
  • Brand: Fab Speed
  • Category: Control Modules
  • Product type: Vehicals & Parts
  • SKU: FS.BMW.E46.ET
  • Availability: In stock

Price history

The price has stayed at $1,703.26 USD since we started tracking it on Nov 3, 2026. Prices come from performancecorvettes.com's public catalog, checked on every sync.

Description

Achieve maximum power from the BMW M3 3.2L straight-six engine without sacrificing drivability or reliability by optimizing the engine's performance. Fabspeed Motorsport offers an alternative tuning method for vehicles equipped with ECUs that traditionally required bench flashing. No longer do you need to remove your ECU and mail it in for a tune. The handheld device interfaces with the OBD-II port on your vehicle and your computer to complete the tuning process. Simply flash your M3 with a Fabspeed ECU Tune utilizing the included handheld tuner. Performance ECU software upgrades improve horsepower, torque, and driving characteristics by reprogramming various sensor inputs, air/fuel ratios, and boost pressure (if applicable). COMPATIBILITY: Fits all BMW E46 M3 vehicles (2002-2006) POWER: Stock = 343 hp / 269 ft-lbs Tuned = 365 hp / 285 ft-lbs Maximum gains of 32 hp and 26 ft-lbs of torque with Stage 2 Tuning TUNING PROCESS: Read stock data on vehicle via OBD-II port with Handheld Interface Handheld with software on your computer and send in data to Fabspeed Motorsport via email to [email protected] We use this data along with information you provide about your vehicle to write a tune for your specific setup and email back your custom tune in 1-2 business days Write the Fabspeed ECU Tune to your Handheld, then to the vehicle with the Handheld Enjoy your increased performance! No need to send your ECU in to return to stock - simply use the handheld to flash back, then to your Fabspeed XperTune again at any point! NOTES: Please review our Tuning Guide in the instructions above and email the ECU Tuning Information form to us. We utilize this form to ensure we meet your needs and consider your modifications to deliver the best possible results. You must have access to a PC/Windows computer (Mac OS not supported) to upload your factory file information to us via email and, in turn, apply our ECU tune to your handheld device. Upon sending us your vehicle information…

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