ECU Tune for BMW 335i F3x (2013-2016)
(N55 3.0L Inline-6 Twin Turbo) 
(Bosch MEVD17 ECU/DME)
 
Includes:
- ECUPROGRAM tune file
- ECU Tune Install
 
335i N55 Tuning Potential:
 
- - STOCK HP & TQ - -
300 HP / 300 FT-LB (406 Nm)
 
- - STAGE 1 - -
370 HP / 400 FT-LB (542 Nm)
Can be performed on stock 335i
 
- - STAGE 2 - - [+$150]
415 HP / 460 FT-LB (623 Nm)
Required 335i Mods:
Race downpipe 
Strong chargepipe
 
- - ZF8HP TCU Tuning - - [+$449]
BMW Transmission Tuning:
- Increased torque through all RPMs,
- Noticably Smoother Shifts and Acceleration
- Custom shift patterns to match your driving needs
Can be done with any Stage of Tuning!
 
335i from 2013+ are fitted with an electronic wastegate and have more tuning potential than older pneumatic wastegate fitted counterpart.
 
Stock power and gains vary based on conditions and state of the vehicle.
 
The BMW N55 Engine is a 3.0-liter inline-six engine introduced in 2009. It is the successor to the N54 engine and is currently used in a variety of BMW models, including the 135i, 335i, 435i, M2, and many more. The N55 is a direct injection engine fed with a twin-scroll turbocharger and variable valve timing to produce high levels of power and torque.
 
The ZF 8HP is an 8-speed Hydraulic system Planetary gear automatic transmission. It is still used in a wide range of high end car models including: Aston Martin, most BMW Serie, Audi, Rolls-Royce, Toyota Supra, and many more. The ZF 8HP was first introduced in 2009 and is a popular choice among car enthusiasts for its smooth and responsive shifting, excellent fuel efficiency, and reliable performance capabilities.
 
The MEVD17 is an engine control unit (ECU), also known as DME/ECM/DDE. It is responsible for controlling the fuel injection, turbocharging, and other engine management functions. In order to tune the BMW 335i, it is necessary to modify the MEVD17, either through remapping or through the use of an aftermarket tuning box.
 
There are several reasons why you might consider BMW N55 tuning, including:
 
- Increase Horsepower & Torque: The most noticable benefits of tuning your ECU is the increase in horsepower and torque. Even without aftermarket modifications, you can see a significant improvement in your engine's performance, resulting in faster acceleration and a more engaging driving experience.
 
- Improve Fuel Efficiency: While more HP and TQ is often the primary goal of tuning, many tuning parameters can also result in improved fuel efficiency. By optimizing the engine's performance, you can reduce the amount of fuel needed to accelerate and cruise, saving you money at the pump.
 
- Enhanced Reliability: By addressing common issues from the factory and making the engine more efficient, you can reduce the risk of breakdowns and extend the life of your vehicle.
Tuning File Fits:
2013 2014 2015 2016 BMW 3 Series 335i (3 Litres, Turbocharged)