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BMW S1000RR K46 2015 to 2018 - FLAWLESS ECU Performance Flash
BMW S1000RR K46 Tuning 2015 to 2018 – what the Performance Flash achieves
The FLAWLESS ECU Performance Flash replaces the stock software in the original engine control unit of the BMW S1000RR K46 for model years 2015 to 2018. Injection, ignition, lambda control, and throttle valve mapping are adjusted – resulting in around 3 to 4 hp more power, 6 to 8 Nm more torque, and a noticeably more homogeneous power delivery, without any additional hardware on the motorcycle.
Unlike piggyback modules or auxiliary control units, we intervene directly in the stock software. The optimization remains invisible from the outside, the ECU software number does not change, and BMW Motorrad diagnostic testers can still be used without restriction.
We tune every piece of software individually to your motorcycle and the hardware actually installed. Optionally, it can be combined with a gear-dependent permanently open exhaust flap, Linear Throttle, a lowered fan temperature, and an individually configured overrun fuel cut-off for pops & bangs.
BMW S1000RR K46 from 2015: Stock vs. optimized software compared
| Feature | Stock | with FLAWLESS ECU Performance Flash |
|---|---|---|
| Emission standard | 2015 to 2016 EURO 3, from 2017 EURO 4 | unchanged |
| Peak power | 146 kW (199 hp) at 13,500 rpm | approx. +3 to +4 hp |
| Torque | 113 Nm at 10,500 rpm | approx. +6 to +8 Nm |
| Power delivery | Stock maps | significantly more homogeneous and smoother |
| Constant throttle jerk | present | significantly reduced or eliminated |
| AFR values | Stock maps | optimized for the respective setup |
| Exhaust flap | gear-dependent control, closes during operation | remains permanently open when a gear is engaged |
| Throttle curve | progressive stock curve | Linear Throttle, 1:1 to throttle valve |
| Fan temperature | Stock thresholds | switch-on and switch-off point each approx. 4 °C lower |
| Overrun fuel cut-off | Stock curve | individually configurable |
| Additional hardware on the bike | – | not required |
Performance increase for the BMW S1000RR K46
We write the tuning software individually for your BMW S1000RR K46 and adapt the maps to the hardware installed on your motorcycle.
Depending on the setup, we achieve an increase in power of approx. +3 to +4 hp and around +6 to +8 Nm of torque.
In addition to the pure increase in power, we primarily improve the power delivery. The S1000RR accelerates more homogeneously and smoothly and responds more directly to throttle inputs overall.
The typical constant throttle jerk of the S1000RR is also significantly reduced or eliminated by the optimized maps.
Optimized injection and AFR values of the BMW S1000RR K46
As part of the BMW S1000RR ECU tuning, we also adapt the injection maps. This brings the Air-Fuel-Ratio (AFR) values of your S1000RR K46 into an optimized range for the respective setup.
In addition to improved rideability, thermal load can also be reduced. The adapted mixture preparation results in lower exhaust temperatures, which reduces the thermal load on the exhaust valves and cylinder heads in particular.
Exhaust flap control of the BMW S1000RR K46
Do you want to hear more from your BMW S1000RR K46? On request, we can keep the exhaust flap permanently open.
We program the flap control to be gear-dependent: As soon as a gear is engaged on your S1000RR, the exhaust flap remains permanently open. This way, you not only feel the extra power, you hear it too.
Linear Throttle for the BMW S1000RR K46
Do you want a more direct and better controllable throttle response? On request, we can program a linear throttle curve. For example, 50% throttle grip position corresponds exactly to 50% throttle valve position.
This gives you a significantly more direct and predictable response from your BMW S1000RR K46.
Optimize fan temperature of the BMW S1000RR K46
On request, we lower both the switch-on and switch-off temperatures of the fans by approx. 4 °C each.
This causes active cooling to start earlier and run longer. Your S1000RR remains more reliably within the optimal temperature range, even during very sporty riding, high outside temperatures, or in city traffic.
Pops & Bangs and overrun burbles on the BMW S1000RR K46
We adapt the overrun fuel cut-off of your BMW S1000RR K46 individually to your wishes and the installed setup – from subtle burbles to clearly audible pops and bangs.
Important: With a setup featuring a catalytic converter, only a subtle burble is possible. Please state when ordering whether a catalytic converter is installed on your S1000RR, and we will tune the configuration accordingly.
Individual tuning for your setup
Every software optimization for the BMW S1000RR K46 is tuned to the installed setup of your motorcycle. Please provide the following information in the comment field when ordering:
- installed rear silencer or exhaust system, e.g., Akrapovic, SC-Project, or Austin Racing
- installed air filter, e.g., K&N, BMC, or DNA
- catalytic converter present: yes or no
- other relevant modifications
This allows us to optimally tune the mapping of your BMW S1000RR K46 to your motorcycle.
Suitable performance parts for your BMW S1000RR K46
Exhaust systems and air filters in particular influence the optimal map tuning. You can find suitable parts in our following categories:
- Exhaust systems from Akrapovic, LeoVince, and MIVV
- Sports air filters from K&N and MWR; BMC or DNA are also suitable
Systems from SC-Project or Austin Racing are also suitable. We are happy to clarify which combination is best for your setup before you place your order.
What hardware is required for maximum performance?
To achieve the stated performance increase, the following are mandatory for the S1000RR K46:
- an aftermarket rear silencer or sports exhaust, e.g., from Akrapovic, SC-Project, or Austin Racing
- a sports air filter, e.g., from K&N, BMC, or DNA
Without these components, the specified power increase cannot be fully achieved. The other optimization functions – rideability, AFR values, exhaust flap, Linear Throttle, fan temperature, and overrun fuel cut-off – are available to you regardless.
How the software optimization of your BMW S1000RR K46 works
- Configure – Order your FLAWLESS ECU Performance Flash and select the desired options.
- Send in the control unit – Remove the ECU from your BMW S1000RR K46 and send it to us well-packaged and insured.
- Programming – Upon receipt, your control unit will generally be processed by our technicians within 24 hours. For shipments from Switzerland, the processing time is usually 24 to 72 hours.
- Install and ride – We will send your control unit back to you. Connect, install, done.
No additional hardware necessary
No additional control unit is installed on the motorcycle for the software optimization. Your original ECU is programmed by us. The control unit is not opened or damaged during this process and remains unchanged from the outside.
The software number of your ECU remains unchanged and BMW Motorrad diagnostic testers can continue to be used without restriction.
Why FLAWLESS Industries?
We have been developing our software optimizations in-house for over 5 years and write every mapping individually – we do not use purchased pre-made files.
The basis for this is created on our own high-performance simulation test bench. Every setup variant – from the stock configuration to the combination of various sports exhaust systems, sports air filters, and configurations with and without a catalytic converter – is installed individually and specifically tuned during development. Our maps are therefore based on real measurement data and not on empirical values or copied files.
We process well over 1,000 control units annually. Development and programming take place entirely in Germany. If you have any questions about your setup, you can contact us directly – we will advise you before you place your order on which configuration fits your motorcycle and intended use.
Suitable for
- BMW S1000RR K46 model years 2015 to 2018 (2015 to 2016 EURO 3, from 2017 EURO 4)
Do you ride a different model? You can find further optimizations for BMW in our BMW Supersport category.
Your benefits
- Software individually tuned to your setup
- Approx. +3 to +4 hp power increase
- Approx. +6 to +8 Nm more torque
- More homogeneous and smoother power delivery
- Eliminated constant throttle jerk
- Optimized injection maps and AFR values
- Lower exhaust temperatures, thermal relief of exhaust valves and cylinder heads
- Optional: gear-dependent permanently open exhaust flap
- Optional: Linear Throttle with 1:1 throttle curve
- Optional: lowered fan switch-on and switch-off temperature
- Optional: Pops & Bangs or overrun burbles / pops
- Software number remains unchanged, BMW Motorrad diagnostic testers remain fully usable
- Processing generally within 24 hours
- No additional control units necessary on the motorcycle
Note on usage
The FLAWLESS ECU Performance Flash changes the engine management software compared to the stock status. Use is only permitted on closed circuits or racetracks.
Frequently asked questions about the BMW S1000RR K46 optimization
How much power does tuning the BMW S1000RR K46 provide?
Depending on the installed hardware, we achieve approx. +3 to +4 hp and +6 to +8 Nm more torque. Just as noticeable is the smoother power delivery and the eliminated constant throttle jerk.
Can the exhaust flap be kept permanently open?
Yes. We program the flap control to be gear-dependent: As soon as a gear is engaged, the exhaust flap of your S1000RR K46 remains permanently open.
What does the Linear Throttle achieve?
It sets the throttle grip curve 1:1 to the throttle valve position. 50% throttle grip thus means exactly 50% throttle valve position, which makes the response more direct and easier to control.
Why is the fan temperature lowered?
We lower the switch-on and switch-off temperature of the fans by approx. 4 °C each. Active cooling starts earlier and runs longer, which thermally relieves the engine during sporty riding and high outside temperatures.
Do I need a sports exhaust or sports air filter for the optimization?
For the specified performance increase, yes – an aftermarket rear silencer and a sports air filter are necessary for the S1000RR K46. The other optimization functions are also available to you with stock hardware.
Does the optimization also work with a catalytic converter?
Yes. The performance increase and the optimized injection maps are also possible with a catalytic converter. However, with a catalytic converter, only an overrun burble can be achieved with the overrun fuel cut-off, not pops & bangs.
Is the software tuned to my exhaust system?
Yes. We take into account the installed rear silencer, air filter, catalytic converter, and other relevant modifications during tuning. Please provide these details in the comment field of your order.
Can I continue to use a BMW Motorrad tester?
Yes. BMW Motorrad diagnostic testers continue to function without restriction because the ECU software number remains unchanged.
Does the control unit need to be opened for programming?
No. The ECU is not opened or damaged during programming. The optimization is also not recognizable from the outside.
How long does the processing take?
After your ECU is received, processing generally occurs within 24 hours. For shipments from Switzerland, the processing time is usually 24 to 72 hours.
Is the optimization suitable for all K46 models from 2015 to 2018?
Yes. This software optimization is intended for the BMW S1000RR K46 model years 2015 to 2018 – both for the EURO 3 models 2015 and 2016 and for the EURO 4 models from 2017 onwards.
Am I allowed to use the optimized software in road traffic?
The software deviates from the stock standard. Use is only permitted on closed circuits or racetracks.