BMW Tuning
Prefered Tune Providers for BMW and Mini
Model Specific Information:
Dinan Performance Software 2007-2016 BMW 135i/335i/535i/Z4
Dinan's Stage 1 Performance Engine Software provides substantial power gains with a modest increase in boost. And as always, Dinan matches the new car warranty coverage for up to 4 years or 50,000 miles, including the possibility of consequential damages. No one offers better performance or backs it up with such comprehensive warranty coverage. Dinan's Stage 1 Performance Engine Software safely increases turbo-boost pressure, along with properly retuned fuel mixtures, ignition timing and full map rescaling. The top speed governor is removed, enabling the BMW to achieve its full potential. The software also features remapped water pump speeds as boost increases better controlling operating temperatures which have been notably excessive even at stock boost pressures.
- More Power: Max gains of +44 HP @ 4000 RPM and +58 lb-ft TRQ @ 4000 RPM
- Full map rescaling
- Improved throttle response
- Top speed governor removed
- Properly returned fuel mixtures
- Remapped water pump speeds to control engine temp
- Smooth and predictable power delivery
- Includes programming cables and software license for a single VIN.
Stage 2 Engine Software is for use with the Dinan Oil Cooler, optimizing performance and drivability from the combination.
Features:
- More Power (with Oil Cooler, where applicable): Max gains of +74 HP @ 4300 RPM and +96 lb-ft TRQ @ 4000 RPM
- 50 State Emissions legal; CARB EO # D-176-39
- Improved throttle response
- Top speed governor removed
- Properly returned fuel mixtures
- Remapped water pump speeds to control engine temp
- Smooth and predictable power delivery
Stage 3 Engine Software is for use with the Dinan Oil Cooler and Intercooler; optimizing performance and drivability from the combination.
Features:
- More Power (with Oil Cooler and Intercooler, where applicable): Max gains of +85 HP @ 4300 RPM and +107 lb-ft TRQ @ 4000 RPM
- 50 State Emissions legal; CARB EO # D-176-39
- Full map rescaling
- Improved throttle response
- Top speed governor removed
- Properly returned fuel mixtures
- Remapped water pump speeds to control engine temp
- Smooth and predictable power delivery
Weistec BMW N55 ECU Tune
The Weistec N55 Tune provides solid gains throughout the entire powerband, with gains of +60WHP* and close to 60WTQ* torque! This is on an otherwise 100% stock vehicle, including the air filters.
In addition to the performance gains, there are a couple options available for race vehicles. First is the "Burble". This is best compared to that of the M4 GTS "burble" which comes from the factory with this in a mild form. You can choose "Off" "Mild" or "Aggressive" for the "Burble". Many seem to prefer "mild", but we gladly will let you choose based on your preference.

Dinan+ PCU - 2021-2025 BMW M2/M3/M4 & 2020-2025 BMW X3M/X4M
The Dinan PCU is controlled by a free Bluetooth app, available for both iOS and Android, and is home to all the potent features the device offers. Equipped with 5 different pre-set performance levels, in addition to stock, you can choose to select your desired output and enjoy more power for a true install and forget experience, or you can opt to engage in the more advanced features at your fingertips. Boost by gear customization, as an example, allows you to limit power delivery as you see fit in lower gears ensuring optimum traction and a perfect launch. Where the PCU shines however is in data acquisition and monitoring that gives insight into the vehicles overall health and makes certain your tuned vehicle is always running at peak potential.
Safety and reliability have been cornerstones of the Dinan brand for generations and not only does the Dinan PCU not hinder any factory safeguards or emissions controls but incorporates its own safeties as well. Going one step beyond our own internal protections, the PCU also grants the end user the ability to monitor up to 20 different engine parameters in real time via customizable in-app gauges for verification of worry-free operation. Those same parameters can also be logged/viewed in app (or exported to CSV) for further scrutiny if desired. All told, the Dinan PCU delivers more power and more features with improved reliability and drivability than ever offered before. Performance without sacrifice is alive and well!
- More Power: Max gains between +61-67 HP and +57-73 lb-ft TRQ (Wheel); +70-76 HP and +61-77 lb-ft TRQ (Crank), depending on application
- Bluetooth connectivity and control via free iOS or Android PCU apps
- Multiple power levels, plus stock, to choose from
- Designed for peak performance utilizing pump gas fueling; 91 octane tuning (levels 1-3), and 93 octane tuning (Levels 4-5)
- Improves power and torque across the entire RPM range
- Customizable in-app gauges
- Real-time logging up to 20 (16 max at one time) parameters courtesy of CAN/OBDII integration and the supplied PCU app
- Logs can be viewed directly in the PCU app or exported/emailed as a CSV file for more detailed scrutiny
- Boost by gear user customization to reduce unwanted wheel spin in lower gears
- Read and clear fault codes as well as check emissions readiness
- Retains all factory safeguards and works flawlessly with onboard emissions controls
- Unaffected by factory updates
- Plug-and-play installation
- Unplug and go back to stock at any time or transfer the unit (Not VIN locked)
- Designed, developed and manufactured entirely in the USA
- 4-YR/50k factory matching new car warranty

Dinan Stage 1 Performance Engine Software - MINI B46/B48 Engine
Extraordinary is the answer the Dinan R&D team has discovered. The B46 on 93 octane and absolutely no other modifications but the Dinan stage 1 tune clocks in with raucous gains of 87 WHP and 109 TRQ. That is nearly 1/2 another MINI's worth of power packed into that diminutive frame. What does this mean for you? Fun. Lots of it. Agility and power, together at last.
While increases in power at this scale typically come at a cost to the engine's durability, this is typically due to improper calibrations that are simply after one goal regardless of engine health - maximum power. Dinan's calibrations are safe and reliable without sacrificing long-term reliability or performance. Dinan performance engine software is so much more than just turning up the turbo boost after all. It is a fully re-tuned engine management program that maximizes power while keeping all the MINI factory safeguards in place. In most cases Dinan software engineers also implement their own additional safety precautions in order to guarantee flawless performance that may not have been needed with factory power levels/programming. Protecting your MINI, while giving the most performance, is the definition of "Performance Without Sacrifice". To do just that, drivetrain and engine components are analyzed for strength, and then the calibration is tested on the dyno and in the real world for durability and drivability. This process has been a cornerstone of Dinan software development for decades and a major reason why Dinan performance tunes are often labelled as being the smoothest, factory-like solution in the marketplace.
Features:
- More Power: Max gains of 87 WHP / 109 lb-ft of torque over stock with 93 octane on ‘S’ models. Consult the performance charts for additional octanes and/or detailed data on other vehicle variants.
- Dinan Stage 1 performance software includes a limited lifetime warranty against defects in the software and provides free updates and reflashes as they become available. Labor or shipping charges are not included in the warranty.
- Choice of numerous octane calibrations depending on your needs (91, 93 and 100).
- No required parts. Install on a stock car and receive the full power gains.
- Full map rescaling for drivability from idle to wide open throttle and everywhere in between.
- Optimized boost control, cam phasing, fueling, airflow and temperature controls for maximum power output that is also safe and reliable.
- Top speed governor (VMAX) removed.
- Aggressive sport mode cooling added for optimum track effectiveness.
- Downshift Auto-Blip added for DSC off / Sport Mode conditions.
- Upgradeable from DINANTRONICS Elite via trade-in program. Consult B46/B48 FAQ below for details.
- Retains all MINI factory engine safeguards and adds additional safety protections such as the stationary rev limiter being set to 4000 RPM and implementation of per gear torque limits.
- Sport gauges rescaled to reflect higher than stock power output.
- Stock JCW pops and bangs settings retained (JCW), or implemented (S), depending on application.





