Which BMWs does the Fabspeed XperTune Performance Software fit?

The Fabspeed XperTune Performance Software fits the N55 3.0L turbocharged M235i (F22), M2 (F87), 335i (F30), and 435i (F32). It covers the N55-powered M2, not the M2 Competition, which uses the S55 engine. Fabspeed writes the calibration for your specific car and any modifications.

How much power does the tune add?

Up to 65 HP and 90 ft-lb over stock, depending on your car and supporting modifications. The N55 is a turbocharged engine, so it responds strongly to tuning: the calibration safely raises boost and optimizes fueling and timing, and the gains come in across the powerband, not just at the top.

How do I install the tune, and do I need to remove my ECU?

No, there is no ECU removal or bench flashing. You read your stock file through the OBD-II port with the included handheld, email it to Fabspeed, and they send back a custom tune within one to two business days that you flash with the same handheld. You do need a Windows PC to transfer the files.

Will the tune affect reliability or drivability?

No. The calibration is developed on Fabspeed's dyno to add power while keeping drivability and engine safety intact, rather than chasing peak numbers. It raises boost and adjusts fueling and timing within safe limits, and it is written for your specific car and modifications.

Can I return my car to stock?

Yes. Your factory file is saved during the process, so you can flash back to stock at any time with the handheld and re-apply the Fabspeed tune whenever you like. This makes it easy to return to a factory calibration for dealer service or resale.

Does the tune work with bolt-on modifications?

Yes. Because each tune is custom-written, Fabspeed calibrates around your setup, so it works on a stock car and takes full advantage of bolt-ons like an intake, downpipe, or exhaust. Tell Fabspeed about your modifications when you send your file, and they build the tune to match.

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Description

Fabspeed XperTune Performance Software for Fxx BMW 335i, 435i, M2 and M235i

Fabspeed’s XperTune Performance Software unlocks the full potential of N55-powered Fxx models — 335i, 435i, M235i, and M2 — delivering gains of up to +65hp and +90lb-ft while preserving OEM-like manners. Calibrated for stronger midrange punch and a broader, more responsive powerband, XperTune sharpens acceleration without compromising drivability or reliability. Installation is quick and reversible with the included handheld tuner, allowing at-home flashing, easy map management, and diagnostics for a clean, seamless upgrade.

Features

Custom ECU tune written by hand for your specific N55 BMW and its modifications
Up to 65 HP and 90 ft-lb of gain over stock
Fits the N55-powered M235i, M2, 335i, and 435i
Optimizes boost, fueling, and timing for a stronger, more responsive powerband
Flashes through the OBD-II port with the included handheld tuner, no ECU removal or bench flashing
Developed on Fabspeed’s dyno with 30 years of tuning experience
Reversible: your stock file is saved, so you can flash back to factory anytime and re-apply later
Backed by Fabspeed’s support and expertise

Applications

BMW 335i: F30 | 2012-2015 | 3.0L N55 Turbo I6
BMW 435i: F32 | 2014-2016 | 3.0L N55 Turbo I6
BMW M2: F87 | 2016-2018 | 3.0L N55 Turbo I6
BMW M235i: F22 | 2014-2016 | 3.0L N55 Turbo I6

Notes

Please review the tuning guide in the instructions and email the ECU tuning Information form. This form is utilized to ensure your needs are met and to consider your modifications for the best possible product.
You must have access to a PC / Windows computer (Mac OS not supported) to upload your factory file information to Fabspeed via email and in turn apply their ECU Tune to your handheld device
Upon sending your vehicle information, Fabspeed’s 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
This device allows you to flash the vehicle back to stock without sending in your ECU

Tuning Notes

Step 1 – Read stock data on vehicle via OBD-II port with handheld
Step 2 – Interface handheld with software on your computer and send in data to Fabspeed Motorsport via email
Step 3 – They 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
Step 4 – Write the Fabspeed ECU Tune to your handheld, then to the vehicle with the handheld

Frequently Asked Questions

Which BMWs does the Fabspeed XperTune Performance Software fit? The Fabspeed XperTune Performance Software fits the N55 3.0L turbocharged M235i (F22), M2 (F87), 335i (F30), and 435i (F32). It covers the N55-powered M2, not the M2 Competition, which uses the S55 engine. Fabspeed writes the calibration for your specific car and any modifications.
How much power does the tune add? Up to 65 HP and 90 ft-lb over stock, depending on your car and supporting modifications. The N55 is a turbocharged engine, so it responds strongly to tuning: the calibration safely raises boost and optimizes fueling and timing, and the gains come in across the powerband, not just at the top.
How do I install the tune, and do I need to remove my ECU? No, there is no ECU removal or bench flashing. You read your stock file through the OBD-II port with the included handheld, email it to Fabspeed, and they send back a custom tune within one to two business days that you flash with the same handheld. You do need a Windows PC to transfer the files.
Will the tune affect reliability or drivability? No. The calibration is developed on Fabspeed’s dyno to add power while keeping drivability and engine safety intact, rather than chasing peak numbers. It raises boost and adjusts fueling and timing within safe limits, and it is written for your specific car and modifications.
Can I return my car to stock? Yes. Your factory file is saved during the process, so you can flash back to stock at any time with the handheld and re-apply the Fabspeed tune whenever you like. This makes it easy to return to a factory calibration for dealer service or resale.
Does the tune work with bolt-on modifications? Yes. Because each tune is custom-written, Fabspeed calibrates around your setup, so it works on a stock car and takes full advantage of bolt-ons like an intake, downpipe, or exhaust. Tell Fabspeed about your modifications when you send your file, and they build the tune to match.

About Fabspeed

Fabspeed Motorsport has spent more than 30 years building performance systems and ECU tuning for high-performance European cars, from a 26,000 square foot facility in Fort Washington, Pennsylvania. Fabspeed designs, engineers, and dyno develops in-house in the USA, and its tuning team calibrates each XperTune file by hand for the customer’s exact car. Every product is backed by Fabspeed’s dedicated support

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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Fabspeed XperTune Performance Software for Fxx BMW 335i, 435i, M2 and M235i [FS.BMW.M235.ET]

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Fabspeed XperTune Performance Software for Fxx BMW 335i, 435i, M2 and M235i

Features

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Notes

Tuning Notes

Frequently Asked Questions

About Fabspeed

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