Audi RS4 / RS5 B8 V8 4.2L FSI (CFSA)
AUDI RS4 (8K) RS5 (8T3) 2010-2015 ENGINE CODES – CFSA
STOCK POWER – 450PS STOCK TORQUE – 430NM
The RS4 and RS5 B8 Introduced in 2012, retained the same 4.2-litre V8 from the B7, but output increased to 450ps. Torque remained at 317lb-ft, but crucially, it arrived 1,500rpm sooner – at 4,000rpm – and was sustained to 6,000rpm
The RS5 is availabe only as a coupe and The RS 4 Avant – both with a 7-speed dual-clutch S-Tronic transmission.
According to Quattro GmbH chief Stephan Reil, the 4.2 FSI engine is based upon Audi’s 5.2 FSI V10 engine (found in the D3 Audi S8 and Audi R8) with two cylinders removed.
STAGE 2 Remap and Carbon clean
You should see around 450-460ps 450-500nm
We would require a non refundable deposit of £150 to secure parts and booking and for your car to be left with us for 3-5 working days to carry out the work.
Injectors are becoming a common issue on the B7/B8 models, we do recommend having them removed and replaced for the latest revision. We do also offer testing and cleaning. Please note that we have come across injectors being seized in place, this could lead to further time being spent on removal as well as the injector(s) having to be replaced.
When checking and cleaning Injectors they should always be flow matched to be within 1% of each other, depending on your results will depend on if we can re-use or if we have to replace them. If you would like this to be priced up please let us know so we can adjust your estimate to suit.
Please make sure your car arrives with at least half a tank of fuel and is always run on the best fuel, either Tesco 99 Momentum or Shell Vpower.
Please make sure that you mention all work you’re wanting to be carried out before booking in so that we can schedule this into the diary accordingly.
Mentioning work when you drop your car off means that we will run into delays as it was not scheduled in the diary.
Frequently Asked Questions
Please check the below questions to see if it answers your query before ringing the office
Bookings
We require non refundable deposits for all bookings made, if you’re more than half an hour late, try to rearrange within 48 hours or do not show we will keep the deposit, if you are wanting to re book then another deposit will need to be taken.
We also ask that all invoices are paid by BACS before collection.
Engine related FAQ
All tuned Vehicles should be ran on Audi long-life 5W40 oil.
All 2.0L 2.5L and 4L engines should be ran on NGK race plugs once tuned.
Please let us know if service work needs to be added to your estimate
Service Intervals:
- Oil and filter change once a year or every 10k
- Major engine service every 2 years or every 20k
- Transmission (gearbox, haldex, diffs, transfer box) should be done every 3-4 years, every 35k
- Depending on how the car is driven, if the car is driven hard/ abused etc then these intervals should be cut in half.
Fuel
Please make sure your car arrives with at least half a tank of fuel and is always run on the best fuel, either Tesco 99 Momentum or Shell Vpower
Coilpacks
Please be aware that old coilpacks can fail when running more power, causing a misfire, please make sure you have newest revision coilpacks before booking in, or let us know and we can add these to the estimate and replace on the day.
Labour rates
Our standard labour rate is charged at £109+vat unlress the vehicle is tuned by ourselves and we are supplying and fitting all parts then it is discounted to £92.50+Vat
