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BMW 4 Series (F3x) 2013> 420i (B48) 181 bhp | ECU Remap | Chiptuning

BMW 4 Series (F3x) 2013> 420i (B48) 181 bhp Stage 2 tuning
MODEL:
4 Series
VARIANT:
420i (B48) 181 bhp
YEARS:
2016 -
ENGINE SIZE:
1998 CCM
FUEL:
Petrol
ECU TYPE:
Bosch MG1CS003
We at Celtic Tuning develop all of our own software in house using the very latest equipment.
All of our software is developed in our purpose built dyno cells running state of the art Dynocom 4WD rolling roads to ensure accuracy in terms of both power delivery and also to ensure fuelling, boost pressures and exhaust gas temperatures (where applicable) are all within tolerance.
We pride ourselves on our ability to achieve maximum power whilst maintaining optimum reliability.
STAGES

Performance STAGES

Stage 1 Stage 2

Power (bhp)

Original
181

bhp

Modified
273

bhp

Difference

Torque (lb/ft)

Original
214

lb/ft

Modified
326

lb/ft

Difference
OPTIONS

ADDITIONAL OPTIONS

Where applicable we are able to raise the RPM limiter enabling a wider RPM band for performance. This is available on both petrol and diesel engines.Where applicable we are able to raise/lower or completely remove the maximum speed limiter from a vehicle.Where applicable when a de-cat has been completed, we are able to switch off the software functionality for cold start preventing the loud droning noise upon start-up.Where applicable we are able to switch off the software functionality and monitoring for the Gasoline Particulate Filter enabling it to be removed from the vehicle.Where applicable we are able to switch off the software functionality and monitoring for the secondary oxygen (O₂) sensor, allowing for the removal of the catalytic converter without triggering diagnostic trouble codes or warning lights.
REVIEWS

CUSTOMER REVIEWS

MODEL:
BMW 4 Series
VARIANT:
435d
POSTED: 08 Dec / 2018 / 15:17
MUJ, UNITED KINGDOM

One if the best thing I have done, so happy thatI did this, what a difference it has made, you canfeel the difference straight away andthe power it gains it’s just amazing from308BHP to 400MHP under 800NM of torque, the car feels so much smoothernow and they also said you get 10% increase offuel consumption but I haven’t managed tosee that yet because I am still lovingthe power the car has now.

I willhighly recommend them, I’mso happy I did this.

MODEL:
BMW 4 Series
VARIANT:
435d
POSTED: 13 Apr / 2018 / 16:56
STEVE, UNITED KINGDOM

I had the remap done about two months ago. The whole process was very easy and done at home on my drive in less than an hour, the result is amazing. I thought the car was quick as standard but the extra 90+ HP and 142nm of torque really makes the 435d a superb car. Acceleration is phenomenal.

Not to sure about the additional fuel economy yet but i'm still in the honeymoon period!

AUTOMATIC

HAVE AN AUTOMATIC?

Alongside the engine control unit (ECU) we are also able to provide transmission control unit (TCU) software to help further enhance your vehicle. There is a lot of limitation built into modern gearbox software to help hold back the power gains you are trying to achieve from your engine, our gearbox software overcomes this and helps transform the way the car drives. Some of the modifications include raising maximum torque limiters, faster gear shift speeds, increased clamping pressures to prevent clutch wear, increased engine RPM limiters and much more…

CUSTOM

ARE YOU AFTER CUSTOM TUNING?

For most makes and models we can develop custom software to suit your individual setup. Get in touch with us and let us know your build to see what we can do for you.

DEALER

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