Audi RS4 (B8) 2012-2015 4.2 V8 FSI 443 bhp | ECU Remap | Chiptuning
MODEL:
RS4
VARIANT:
4.2 V8 FSI 443 bhp
YEARS:
2012 - 2015
ENGINE SIZE:
0 CCM
FUEL:
Petrol
ECU TYPE:
Bosch MED17.1.1
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: 20 Jul / 2016 / 22:48
IAIN, UNITED KINGDOM
I had my Audi RS4 B8 upgraded at the beginning of July just to see whether a few more horses could be squeezed out of the 4.2l V8. I'd used Celtic Tuning twice before on turbo diesels and was very pleased with the improvement and service so getting a remap on a NA petrol V8 was new to me.
Booking the car in was easy and it was a lovely day for a drive to Newquay even down the infamous A303.
I run my car on Esso Supreme 97 RON so I was interested to see whether this would make any difference to the stock 443 BHP as quoted by Audi, who recommend 98 RON by the way. To my pleasant surprise the dyno showed 463BHP before and 493 after which is quite a hike on the quoted 443. Celtic quoted a possible 27 BHP increase and I got 30 BHP so no complaints there.
Do I notice any difference ? Not really from 0 MPH, maybe a slight increase mid-range but the engine delivers the power smoother especially from low down the rev range. I have noticed a 1 ( yes one ) MPG improvement over the 700 miles since the upgrade, nothing spectacular considering it's a V8 but that means I get my money back in saved fuel in a little under two years.
The upgrade did upset the fuel gauge as it showed no fuel so either the boys had drained my tank dry or the ECU had a hiccup. A quick inspection by the team restored the fuel gauge back to full working order. Apart from that minor problem there have been no problems since.
I'd definitely recommend Celtic Tuning to anyone considering a remap.
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…