4.8 2,200+ reviews
4.8★★★★★2,200+ reviewsClosed · opens today 8am
Contact us
Searches the whole site: cars we tune, parts, case studies, the Help Centre, services and news. Try RS21JFAP0420Golf RMilltekAdBlue
4.8★★★★★2,200+ reviewsClosed · opens today 8am
Stage 1, 2 and 3 figures and the price for your exact engine
Klarna0% finance availableBuy now, pay later on tuning, servicing and parts

HomeCase studiesAudiRS3

Case study · Audi RS3 2.5l TFSI

Audi RS3 Tuning

Want more power and torque out of your car? Who doesn't. Our software transforms the Audi RS3 into even more of an animal...

5RS3 engines on file
+70 bhpBiggest Stage 1 gain
+17%Average Stage 1 gain
Tuned at JF Automotive, MaidstoneDecember 2019Figures from our dyno data

The RS3 is the car that made the five cylinder respectable again, and the 2.5 TFSI responds to tuning as well as anything we see. There is a catch worth knowing before you start, though: what Audi quotes and what your car actually makes are frequently not the same number. The RS3 we developed on read appreciably above its quoted output in standard form, which is why we put every one on the dyno before touching the software. Which generation you have matters too, as the 8V and 8Y differ in what they will accept.

Dyno graph: Audi RS3 TuningMeasured on our Mustang AWD rolling road in Maidstone. Wheel figures, drivetrain loss added for the flywheel numbers.

The Audi RS3 is like the RS4’s smaller, more aggressive brother. It really has got everything one might need. Coming in either a sportback or saloon chassis, there is practicality in the design and comfort when inside. As with all Audi RS cars, when you want to put your foot down, you get the results. From a distance, the RS3 could blend in with any other car on the road. When you get closer you’ll notice the twin exhausts and the rather sporty looking rear. It’s at this point that the little RS3 could probably shock some supercars with how well the car picks up! The car’s 2.5l turbocharged engine spits out 362BHP and 465Nm torque as standard which along with Quattro, is really enough to get moving! We offer an Audi RS3 Tuning package which takes this car to the next level.

RS3 Stock Power

We first run diagnostics checks on the car to make sure that everything is running as should be. We do this before changing anything on the car so that we can be sure everything will run smooth after mapping. Audi claim that the car churns out 362BHP with 465Nm torque. While this is very impressive, we know from experience that German manufacturers actually down-play their figures meaning the car might actually be making more power out of the factory! Sure enough when we put the car on the dyno we found that this engine in particular was making 390BHP and 490Nm torque! This is nearly 30BHP more than what we thought! This is obviously a huge difference, however we can still tune the car just the same!

Audi RS3 Tuning Figures

After many tweaks and adjustments being made to our remap, we were finally happy with the results this car was producing. A final few dyno runs revealed a whopping 431BHP and 564Nm torque! Just shy of 70BHP over what Audi think this car produces is a huge difference! When road testing, the car felt entirely different. The torque curve on the dyno graph shows just how different the power delivery is throughout the entire rev range now. We recommend a performance tune such as this to any Audi RS car as it completely unlocks the true potential of these amazing German engines. The difference is truly night and day.

If you have an RS3 and would like similar figures from your vehicle, call or e-mail us today to discuss what we can do for you.

Which RS3 do you have?

The RS3 has changed substantially across its generations, and what we can do with yours depends on which one you have. Pick your car:

Have an S3 rather than an RS3? See Audi S3, S4 and S5 tuning.

Photos from the build

13 photos of this Audi RS3 in our Maidstone workshop. Tap any to enlarge.

Photo 1 - Audi RS3 Photo 2 - Audi RS3 Photo 3 - Audi RS3 Photo 4 - Audi RS3 Photo 5 - Audi RS3 Photo 6 - Audi RS3 Photo 7 - Audi RS3 Photo 8 - Audi RS3 Photo 9 - Audi RS3 Photo 10 - Audi RS3 Audi RS3 ECU Remapping Audi RS3 Enne Tune Development Audi RS3 Chip Tune

Questions we get asked

Why do you run the car on the dyno before mapping it?

Because the factory figure and the real figure often differ. The RS3 we developed on read appreciably above Audi's quoted output in standard form, which is common on this engine. Without a standard baseline taken from your own car, the after figure tells you very little about what you actually gained.

Does it matter which RS3 generation I have?

Yes, a great deal. The 8V and the 8Y differ in output, in ECU and in what they will accept, and the later cars fitted with a particulate filter are a different proposition again. Send us the registration and we will confirm which one you have before anything is agreed.

Should the gearbox be done as well?

On the RS3 it is well worth considering. The seven speed S tronic can be revised for shift speed, shift points and clamping pressure, and the torque limiter in the standard gearbox software will otherwise cap what the engine map is allowed to deliver.

Your car next

Put your registration in

Real power and torque for your exact engine, priced, from the same dyno data behind every case study on this site.

Try our tuning builder Build your tune Enter your reg and see the real power and torque figures for your exact car, pick your options, then send it straight to us. Open the builder →
The JF Automotive team
Meet the team

The team behind every job

Technicians, calibrators and the front desk, all in Maidstone. No call centre and no subcontracting - the person who books you in is the person you can ask about the job.

Newsletter

Offers on parts and tuning, first

A short email now and then: new vehicle support, parts deals, open days. Nothing daily.