Home > Services > Performance Stats > Mercedes Benz > SL (R231) 2012> > Petrol > SL63 AMG BiTurbo 537 bhp
Mercedes Benz

Mercedes Benz SL (R231) 2012> SL63 AMG BiTurbo 537 bhp | ECU Remap | Chiptuning

Mercedes Benz SL (R231) 2012> SL63 AMG BiTurbo 537 bhp Stage 1 tuning
MODEL:
SL
VARIANT:
SL63 AMG BiTurbo 537 bhp
YEARS:
2012 -
ENGINE SIZE:
5461 CCM
FUEL:
Petrol
ECU TYPE:
Bosch MED17.7.1
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

Power (bhp)

Original
537

bhp

Modified
637

bhp

Difference

Torque (lb/ft)

Original
590

lb/ft

Modified
725

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 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:
Mercedes Benz SLK
VARIANT:
250 CDI BlueEFF AMG
POSTED: 25 Nov / 2020 / 17:46
DAVID RUDKINS, UNITED KINGDOM

I had my SLK tuned yesterday. The whole process has been fantastic.Kevin drove up from Cornwall to my home in Kent and started the job at nearly 5 pm. Within 30 minutes the car had been checked for faults and the old map downloaded. Another 30 minutes later (and a cup of tea) the new map was loaded. The keys were back in my hand and all of my questions were answered. Kevin, top man. My test drive was completed, payment made and I sat down with a big smile on my face. Today I have taken the car for a longer run. She feels smoother and in S mode a whole lot faster. I can't recommend Celtic Tunning highly enough. They know what they are doing.

MODEL:
Mercedes Benz Vito
VARIANT:
114 CDi (2.1L EU5)
POSTED: 28 Feb / 2020 / 14:39
MARTIN- MIDDLESBROUGH, UNITED KINGDOM

I'd just like to say what a great job you folks at Celtic did on the remap of my 114 Vito. When I bought the van, I was initially disappointed.

I called Celtic and the staff were very helpful. I booked the date and the tech turned up on time and did then work. A week later I called back to say the Merc remap file was not what is expected, performance-wise, Again the staff were very helpful and rebooked the tech to put the 240bhp file on the van.

The result was dramatic, it pulls really well all the way to high revs(I haven't tried past 3500rpm) although most of the time I drive it between 1200-2300rpm and its great such an improvement.
The more i get used to it the better the mpg i get .... drove it back from Lakes on A66 and got 49.8mpg average on the journey ...thats fantastic for a big van imo.

Thanks Celtic for the great job.

MODEL:
Mercedes Benz A Class
VARIANT:
A35 AMG
POSTED: 11 Feb / 2020 / 12:59
ASHLEY, UNITED KINGDOM

I had the stage 1 tune added to my AMG A35 today by Jamie!

I am over the moon with the difference in the car's ability now performance wise!

My main reason for contacting you all there at Celtic Tuning is to commend Jamie!

This Guy is a true Gentleman and conducts himself in a very professional manner! From start to finish he had every situation under control. He is an asset and a credit to you there at Celtic Tuning!

I am not on any social media sites, so this is the only way I can put something together in writing to pass forward to the senior management if that could be possible, please.

Once again thank you all so much, you can count on me to let as many people know of your great tuning company!

MODEL:
Mercedes Benz E Class
VARIANT:
E350 CDI BlueEFF
POSTED: 27 Nov / 2019 / 10:37
K HALES, UNITED KINGDOM

Had my ‘59 plate Mercedes E350cdi for about 5 years now and after a couple of years started researching tuning options knowing there were performance and efficiency gains to be had on such a diesel. A great car and was a bit anxious about reliability issues following a stage 1 tune as I’ve never had to do a thing on the car other than usual consumable items, pads, discs, wipers, tyres etc. The car is pretty much bulletproof and good for at least another 150k that it currently has on the odometer.

Lovely guy came out from Celtic to my place of work and within the hour after ECU whipped out from under front wheel arch, the remap was done and I was out for a quick test drive.

The increase in power is even more than I could have hoped for - +63bhp and +77lb/ft is suggested and whilst only a session on a rolling road would prove it, I’ve little doubt it’s all there. I’ve noticed from 40mph particularly it is now a hoot and joint a motorway even more effortless than before.

The car has never been a sports car but even more of an effortless performance cruiser than previously. It’s actually made me decide to keep the car for a couple more years. As such a bargain of a thing to have done and if I do get the BMW 640d I’ve promised myself next, the tuning guy said they can do wonders for that too, getting 313bhp to nearer 400bhp.

Can’t comment on mpg gains at this stage as I keep marvelling at the extra grunt I’ve got. Great communication from Celtic and an effortless process.

Cheers.

MODEL:
Mercedes Benz Sprinter
VARIANT:
218-518 CDi
POSTED: 18 Sep / 2019 / 11:56
RODNEY EYLES, UNITED KINGDOM

I've just had my Mercedes Sprinter Motorhome remapped by Celtic. Because I use the motorhome for towing I wanted an emphasis on extra torque, which Celtic were able to do. They can provide a tune to suit your individual requirements, it is not a "one size fits all" service.

The increase in power was immediately noticeable, a nice linear flow, with no exhaust smoke; unlike a previous tune I had by another Company on a Fiat motorhome.

The real test came on my return trip to Devon. The hills on the A30, crossing Bodmin Moor and the fringes of Dartmoor, were ascended with satisfying ease. And to top it all there was an improvement in fuel consumption.

Good service, friendly staff and a great product = one delighted customer.

MODEL:
Mercedes Benz E Class
VARIANT:
E320 CDI
POSTED: 02 Jul / 2019 / 15:40
CHRIS HUGHES, UNITED KINGDOM

Lol, where do I start ??? Took a trip to Newquay yesterday for a rolling remap at HQ.

The lady n gents where very very helpful and accommodating and I was extremely well-cared and catered for! The tech guys spent around 3 1/2 hours on my car and between them and myself established that my upgraded injectors were, in fact, wrong and my original injectors would suit better for now and that I need some additional parts but they did manage to tweak my car a bit more to the upgrades I already have and what a difference yet again to the car !! BUT they couldn’t remap my car not the day to what it was planned for and despite the guys spending way more time on my car than scheduled, I was not charged a penny and I really appreciated this along with all the time n effort the whole team put in to make me feel so relaxed after a 5 hour drive from home!

Very very professional, kind n friendly team all round !!! Would very highly recommend Celtic tuning to anyone !!!! 😎👍

MODEL:
Mercedes Benz E Class
VARIANT:
E220 CDI BlueEFF
POSTED: 25 Jun / 2019 / 13:47
ANONYMOUS, UNITED KINGDOM

I had this remap done a week ago and I can confirm that it has been very positive. It pulls much better in all gears, is very smooth and effortless and really goes when you ask it to.

I am not in a position to comment on the MPG yet, however early indication shows an improvement.

Communication before the appointment was good. The service on the day was spot on, the engineer was friendly and appeared to be very knowledgeable and was on time.

MODEL:
Mercedes Benz SL
VARIANT:
SL 500
POSTED: 24 Jun / 2019 / 10:58
GORDON, UNITED KINGDOM

Last Monday I sent you the ECU from my SL500 which I received back Wednesday. I have today refitted it to my car and gone for a wee drive.

I am absolutely delighted with the results of your work.

The throttle response is much improved and the power curve is just as smooth as can be, I wouldn't have believed that just 30 odd bhp would be that noticeable!

I will certainly be recommending you to others!
Next one to do is my 2017 Vito 116 van ...👍

MODEL:
Mercedes Benz E Class
VARIANT:
E350 BlueTEC
POSTED: 13 Jun / 2019 / 10:05
ANDREW OLIVER, UNITED KINGDOM

I had a mobile visit from a nice technician who drove all the way from Cornwall to Bedford on our pre-arranged date and time. Remapped my ECU and totally transformed my E350 Bluetec.

The car runs smoother than when it was new. HP and more impressively the torque increase has made a huge difference. I would recommend Celtic Tuning to anyone. Fantastic customer care and very knowledgable.

Thank you guys for looking after me. Andrew Oliver

MODEL:
Mercedes Benz E Class
VARIANT:
E320 CDI
POSTED: 15 Jan / 2019 / 15:57
CHRI HUGHES, UNITED KINGDOM

Jamie came yesterday from Coventry to remap my merc at the home address! He was very polite, friendly and explained very clearly what he was going to do! In fact, we got on so well that we had a good chat about cars, the weather, and life itself 🤣👍.

After approx an hour the job was done so Jamie advises we take the car for a quick test run and I was amazed at the difference! And totally amazed again after taking the car for a proper run to pick my friend up! Much quicker, so responsive and a totally different car now! Also, no black smoke just as Jamie promised!

Very very impressed with the whole experience and would recommend Celtic Tuning to anyone looking for an upgrade !!

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