BMW

BMW 1 Series (E8x) 2004-2011 135i (N55) 301 bhp | ECU Remap | Chiptuning

BMW 1 Series (E8x) 2004-2011 135i (N55) 301 bhp                            Stage 1 tuning
MODEL:
1 Series
VARIANT:
135i (N55) 301 bhp
YEARS:
2004 - 2011
ENGINE SIZE:
2979 CCM
FUEL:
Petrol
ECU TYPE:
Bosch MEVD17.2
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

Power (bhp)

Original
301

bhp

Modified
380

bhp

Difference

Torque (lb/ft)

Original
295

lb/ft

Modified
395

lb/ft

Difference

STAGE NOTES

Our Stage 1 ECU remap is developed to safely improve your vehicle's power and torque whilst maintaining standard components and remaining within tolerances. <br/><br/> It's the perfect balance of increased power and day-to-day usability, which is ideal for those who want extra performance but not at the cost of additional hardware or reliability.d as our fast road application which is the best all round performance for stock vehicles.

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 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 1 Series
VARIANT:
120d
POSTED: 05 Oct / 2018 / 16:28
ROSS, UNITED KINGDOM

Celtic Tuning Newquay
Fantastic worth every penny. Very friendly and knowledgeable staff, fast service and flexible.

Before
Car is long distance weekly commuter, full BMW service history and a strong healthy engine to start with.
178bhp
50mpg average @ 65-70mph (Southampton to Plymouth)

After Stage 1 Performance map.
250bhp
60mpg average @ 65-70mph (Southampton to Plymouth), 70mpg @50-60mph average achieved on an eco run (Exeter to Yeovil)

The car now has better progressive power throughout the rev range, most noticeable from the lower end, making A-Road overtaking faster and safer with far superior MPG all round. Couldn’t be happier and have recommended Celtic to several friends and family already.

MODEL:
BMW 1 Series
VARIANT:
125i
POSTED: 20 Jun / 2016 / 00:46
MICHAEL CRICH, UNITED KINGDOM

I had my BMW 125i convertible re-mapped by Celtic Tuning near Newquay in Cornwall about 3 weeks ago. What a great experience. They were knowledgeable, friendly and professional. They provided tea/coffee, car mags and comfortable sofas while I waited. All in all it took about 3 hours including me taking the car for a 20 minute test drive to make sure I was happy with it.

The Car's performance after the re-map is astounding. I had seen the various postings about 125i re-maps based on the 130i BMW base map, and to be honest I bought the car on the basis that I would be getting it re-mapped, but I was a little skeptical about the claims. However the performance is everything I had hoped for and considerably better than I expected. A couple of days before I took the car to Celtic I ran a few 0-60 times using Torque-pro software on my tablet (connected to the OBD port by Bluetooth) and ran best times of 6.6s one way and and 6.8s the opposite way on the same stretch of road. I was very pleased to get so close to the quoted performance times as I'm not a racing driver and the traction control light flashed on a couple of times. The day after the Celtic remap, on the same stretch of road, I got 5.6s and 5.75s. To be honest I repeated a few times because I thought it was too good, but apart from a couple of times I cocked up the clutch control and the time I switched traction control off (leaving two neat lines of expensive run-flat rubber on the road) I was able to repeat the times and get within 0.1s. on a number of runs.

I did get a couple of error codes appearing immediately after the test runs (both relating to the throttle position sensor) but after doing a throttle sensor reset procedure and clearing the codes, they have not reappeared.

I'm really happy with the car and would recommend CelticTuning to anyone.

MODEL:
BMW 1 Series
VARIANT:
118d
POSTED: 15 May / 2015 / 12:39
MICHAEL , UNITED KINGDOM

This is the second time i have used Celtic Tuning and once again the service has been exceptional.

What a difference the remap has made to my car, it's so much more responsive and engaging to drive. I love it.

Thank you Celtic Tuning!

MODEL:
BMW 1 Series
VARIANT:
135i (N54)
POSTED: 15 May / 2015 / 11:32
ANONYMOUS, UNITED KINGDOM

I had my BMW 135i 3.0 litre Twin Turbo Re-mapped by Celtic tuning on 8th April 09. Although the job took longer than expected the results are amazing. The car was running 306 BHP pre install, the next day I put the car on the rolling road at Well Lane Turbo Centre. At first the figures were disappointing 163 BHP???, The car was spinning up on the rollers so after some sticky tyre stuff and 2 people sat in the boot!!!! we got a reading of 365 BHP (59 BHP over standard), the operator said he had never seen such a smooth power curve, (Corner 2 corner) and was truly amazed at the results.  I was sceptical at first as most of the reviews I had read were for either Diesel cars or naturally aspirated. I can only say thanks to Luke and the team at Celtic Tuning, Great Job, I would recommend to all.

MODEL:
BMW 1 Series
VARIANT:
118d
POSTED: 15 May / 2015 / 11:29
STUART , UNITED KINGDOM

Just a note to say thank you for a job well done. Took a bit longer than expected, but now I appreciate the individual attention that each client receives in getting a totally individual remap without cutting corners. Car totally transformed from sedate cruiser to hot hatch. Now actually enjoy driving the car whereas before simply a means of transport. Happy to say better fuel economy - 5mpg on average. Simply stunning! Thanks.

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

FIND A DEALER

FIND A DEALER

Enter your location to find your nearest dealer