BMW 5 Series (E6x) 2003-2010 550i 361 bhp | ECU Remap | Chiptuning
MODEL:
5 Series
VARIANT:
550i 361 bhp
YEARS:
2003 - 2009
ENGINE SIZE:
4799 CCM
FUEL:
Petrol
ECU TYPE:
Bosch ME9.2
Performance STAGES
Power (bhp)
Original
bhp
Modified
bhp
Difference
Torque (lb/ft)
Original
lb/ft
Modified
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.
ADDITIONAL OPTIONS
CUSTOMER REVIEWS
POSTED: 04 May / 2017 / 10:06
STEVE T, UNITED KINGDOM
Hi Would like to say a big thanks to the guys for talking me through the process and being super-efficient!
Used the emotion box to flash my BMW 535d will update once I've driven it! Thanks again Celtic Tuning really top customer service.
POSTED: 07 Nov / 2016 / 10:30
STEVEN GILBERT, UNITED KINGDOM
Had my E61 Estate remapped on Friday 4/11/16 and took it to Donnington Park on Sunday 6/11/16.
Before remap a sedate family estate car capable of 155mph and carrying stuff around.
After remap liken it to my Ducati 916SP ....apply throttle and it goes and goes and goes....didn't get lap times but it could run with M3's M4's Type R's (all ages) R8's, even kept pace in the wet with 911 Turbo!!!
I kid you not if you are ever at a Javelin track day and see a 2008 E61 Blue M Sport Estate being driven by an old boy with glasses come and be a passenger and i will show you what it can do!
Absolutely awesome.......
POSTED: 15 May / 2015 / 12:29
ANONYMOUS, UNITED KINGDOM
Great job as usual. Not just the extra power and torque but much more responsive, quicker pick up, better economy. Lots of fun to drive, annoying sports car drivers, hot hatches at the lights, and unmatched on the motorway for roll on performance.
Maps been in for 60,000 miles (car has done 127k now) averaged 36mpg, top speed off the clock. Wouldn't be without it.
POSTED: 15 May / 2015 / 11:54
RHYS , UNITED KINGDOM
After several hours research I found Celtic tuning offered the most. The car has a very smooth power delivery and have noticed a reasonable gain in MPG. I still can't believe how fast the car picks up; the Torque has increased so much I need to carry an extra of pants! This remap is by far the best I’ve experienced and would never hesitate to use again.
POSTED: 15 May / 2015 / 11:53
JASON, UNITED KINGDOM
Well worth the wait! On the first booking there were floods in the town, so it had to be cancelled (Kevin tried to get through and made it to within ½ a mile of the house but was turned around by police!). On the second booking Kevin was held up with another job and traffic, but I was kept updated throughout the day. The car was causing some problems at first but Kev worked around and got it done within 1 hour. Took it for a short test drive (due to myself having limited time) and at first the difference wasn’t massive – it certainly pulled better through the gears, and I was told it would get better as I drove it more. I think it was a combination of the road I drove it on, and over expectations (having been in a M3 the day before didn’t help!). Â That evening when I took it out I could really test it, and it certainly had made a difference! I had the opportunity to test it against a newer 525d and I consistently pulled away from it. Acceleration in every gear could be felt, and hard acceleration in 1st and 2nd gear caused everything to fly to the back of the car! It has made driving the car so much fun. Motorways – up to speed very quickly and no problem picking up in 6th gear from 50mph (previously I’d have to drop it into 5th or even 4th), cruises with ease. A roads – no problem overtaking in 3rd, 4th or 5th gear (previously it was hard to know whether to drop it a gear, and it didn’t make as much progress as it should have). B roads – now so much fun for a big car. The whole driving experience is much improved thanks to the remap, and the throttle response is so much better – a slight movement of the right foot can be felt, whether you are ¼ or ¾ throttle. It’s faster than a 525d and Focus ST, and isn’t embarrassed by an M3 when making progress through traffic. Car had covered 82k miles at the time of remap, and it has been 2 and half months since it was done. I won’t hesitate to get my next car done.
POSTED: 15 May / 2015 / 11:51
DAVID NUNN , UNITED KINGDOM
This is the first time I have used Celtic tuning, although I have been thinking about using their services for a while. The service is excellent and whole experience is painless. I am now wishing I had taken the plunge earlier. The result from the remapping is phenomenal. Power delivery is so smooth all the way through the rev range. I wanted the performance of a 530D, I think it’s better plus initial calculations show an improvement in mpg. I’m told that over time the remapping learns and improves, can’t wait. Great service, great team and great results.
POSTED: 15 May / 2015 / 11:47
CHRIS WILLIS, UNITED KINGDOM
Once again a fabulous service from CT. Kevin was great when he did the re-map, very knowledgeable on the car and very professional. The re-map has turned what was already a very nice car to drive into a great car. Very smooth throttle response, loads more torque and overall much better performance. I wouldn’t hesitate to recommend this to all 5 series drivers!
POSTED: 15 May / 2015 / 11:20
JOHN .B., UNITED KINGDOM
Just a quick note to say how pleased I am with the ECU remap you did on my BMW last weekend.
The BMW 3L Diesel is already one of the smoothest and most powerful diesel engines available, but after the re-map it is so much more responsive and the acceleration needs to be experienced to be believed. My other car is a 996 C4 and the in gear acceleration for overtaking is at least as quick if not better than that now.
The fuel consumption has even decreased slightly due to the reduced requirement for gear changes. My only problem now is that I have to keep a close eye on the speedo as 60 is reached so quick and you don't even notice it.
I would recommend this to anyone who has a 3Lt BMW diesel, you no longer need that boy racer Impreza.
POSTED: 15 May / 2015 / 11:18
MARK, UNITED KINGDOM
Absolutely fantastic performance, I had an m3 before this and it feels just as quick!!!
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…