BMW M3 E46 XperTune Performance Software

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 ECU's 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 upgrade improves 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:

1. Read stock data on vehicle via OBD-II port with Handheld
2. Interface Handheld with software on your computer and send in data to Fabspeed Motorsport via email to tuning@fabspeed.com 
3. 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
4. Write the Fabspeed ECU Tune to your Handheld, then to the vehicle with the Handheld
5. 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, our tuner will email you a custom ECU Tune(s) within 1-2 business days. 
• The Handheld device "marries" with your vehicle and can only be used on one vehicle.
• Special requests and tune file upgrades may be subject to additional fees.

Need some help using our XperTune Handheld Tuner? Watch our tuning tutorial video!

Purchase Disclaimer: Fabspeed Motorsport does not condone the use of emission defeat devices for any vehicles used on public streets or roadways. Fabspeed Motorsport will not tamper, remove, disable, or bypass emissions equipment on a motor vehicle in accordance with 40 CFR Section 86.1854.12(a)(3), Clean Air Act 40 CFR 1068.101(b). This includes software, known as tunes, that reprogram a motor vehicles electronic control module to alter engine performance and enable the removal of filters, catalysts, and other critical emissions controls.

Returns Policy

To RETURN any system, product or merchandise you must contact us first for a Return Authorization (RA) Number. Special order and custom made systems, apparel, Carbon Fiber Wall Art, and other certain merchandise are NOT returnable. ALL SALES ARE FINAL. To return a Fabspeed Motorsport product an RA number must be requested and if granted the item(S) must be in original Fabspeed Motorsport sealed packaging. A copy of the original invoice and a brief explanation must accompany all returned items. You must follow our instructions for returning items carefully, or Fabspeed Motorsport reserves the right to charge a 25% restocking fee on any OPENED box or repackaged products. Customers are responsible for return shipping charges. If an order was shipped with a promotional “Free Shipping”, and the order is returned, we exclusively reserve the right to charge the customer or distributor for the cost of that original shipping and handling. If a Fabspeed Motorsport Performance package is ordered, and an individual component of that package is returned, Fabspeed Motorsport reserves the right to charge back the performance package discount along with any additionally offered discounts. Return shipped items DAMAGED in transit will RESULT in additional charges up to and including rejection of the competent. It is the customer’s responsibility to ship safely and properly. No returns accepted after 30 days from the invoice date. No credits will be given after 30 days from the invoice date.

To qualify for return, the product must be unused and remain in the original packaging, as well as match the current design and packaging for the product at the time of return. Sounds is subjective and therefore does not qualify for a return of a used product. See Sound Solution Guarantee to see if your product is covered.

Periodically mistakes are made when ordering, or a wrong part is shipped, and you may wish to return an item. We will do everything reasonable to satisfy you. Please contact Fabspeed Motorsport immediately via email at service@fabspeed.com to discuss the circumstances before returning any products. Anything returned without prior authorization from Fabspeed Motorsport will be refused. All returns must be sent back fully prepaid. Our customer service department (service@Fabspeed.com) will issue a Return Authorization Number, which must accompany any return. A copy of the original invoice and a brief explanation must accompany all returned items. No returns accepted after 30 days from the invoice date. No credits given after 30 days.

Shipping

Fabspeed Motorsport cannot be held liable for refusal of, delay of, loss of, theft or damage to a shipment of any item. The customer agrees to indemnify Fabspeed Motorsport for all costs, fees and expenses Fabspeed Motorsport incurs as a result of any violation of any local, state, federal, national or international laws or regulations. Customer agrees to take responsibility for lost packages that were not independently insured or sent without requiring signature. The customer understands they will be liable in the event of additional fees, tariffs, or legal issues such as border seizure. Customer accepts these risks and agrees to release Fabspeed Motorsport of all liability.

Fabspeed Motorsport reserves the right to charge a shipping and handling fee on every order being shipped from our facility. This fee is universal and applies to all retail and wholesale purchases and cannot be waived or credited.

A 6% sales tax will be implemented for every purchase made by a Pennsylvania resident. This fee will be charged for in-house installations and products purchased online, over the phone, and/or via email, this fee is required by law, is non-negotiable and non-refundable.