Power Club

The TDI Tuning Blog

November Car of the Month - Audi RS4 TFSI Quattro


audi engine tuning

Audi RS4 Quattro 444 BHP With a CRTD4 SENT Multi Channel Tuning Box

With our CRTD4 SENT Multi Channel Tuning Box:
Power was increased from 444 to 506 BHP
Torque was increased from 600 to 672 NM 

Before we begin to delve into the new Audi RS4 Quattro. Let us appreciate what a beautiful, and, brilliant car it is. The engine, the noise, the styling. Is there anyone that doesn't love the RS range? After taking a closer look at the new Audi RS4 Avant, there is one disappointing feature. Not possible? Find out why the new Audi RS4 falls short in a major area.

audi tuning with chip tuning

Spot the difference: The new Audi RS4 Avant

Before we address what is holding the new Audi RS4 back, let us compare it to the previous model (Model B9). The comparison begins with a similarity, it's got the same 2.9 Litre twin turbo V6. Needless to say, it's still Audi Quattro. The new Audi RS4 keeps the same 8-speed automatic gear box as well. The similarities don't stop there, the styling is very similar, with a few different vents now on show. Now on to the most important topic, power. The new one has more power doesn't it? It has to? Well, no, it doesn't. In fact, it has exactly the same amount of power. Audi have stated that it has a "Broader torque curve" meaning more power is available throughout the rev range. In theory. We haven't touched upon, arguably, the biggest difference between the two. Read on to find out what that is...

audi tuning box

What’s holding back the new RS4?

The new Audi RS4 now comes with a petrol particulate filter (PPF). Climate change activist, congratulations, this gas guzzling 2.9 Litre beast chucks out less emissions than the B9 version. Although it may be a win for environmentalists, it's not a win for petrol heads. This filter restricts the performance of the car. The PPF built into the catalytic converter restricts the airflow. This means performance takes a hit, even though Audi state it doesn't! Various third-party tests have concluded that the 0-60 times are in fact, slower. It almost doesn't seem natural to put "slower" and "Audi RS4" in the same sentence. But it is! We definitely aren't saying it isn't a great car, and it still might be a better version of it than the B9 Audi RS4. The new one has an improved cockpit, with a swanky new infotainment system. Massaging seats as standard, and a new, futuristic rev gauge. How can you have the best of both worlds in this situation? Is there a way to have the new model, without that pesky PPF? Some tuning companies may be able to offer this. It would involve removing the filter and remapping the engine, so it knew it was no longer there. This will invalidate your warranty straight away. Not something that you want to do with an RS model Audi. So, is there another way to recoup that missing power? Have you figured it out yet?

RS audi tuning

Tuning Box & Audi RS4: Perfect harmony

Picture the scene. You're in your brand-new Audi RS4, with all the technological aids of the future. It brakes the inside wheel through tight turns to rotate the car round. The limited slip differential powers the wheel with the most grip to ensure optimal control and performance. Inside the cockpit you have the ability to adjust the dampers and suspension to your liking (with the optional extra). But one day, you will pull up next to the old B9 Audi RS4. Although their won’t be a night and day difference between the two, there should be! With our custom tuning box installed an extra 64 BHP and 72 NM of torque are available. The chip tuned RS4 would annihilate the previous model, even with the restrictions holding it back. The best part is yet to come too.  You don't need to cut anything out of your brand new RS4. You don't need to meddle with the ECU, invalidating the warranty. So what do you need to do to increase the power with a chip tuning box from TDI-Tuning? It's easy, plug it in. Once connected to the engine sensors the power levels increase, along with the enjoyment factor. A simple choice in chip-tuning technology, it's the logical option. Warranty intact, power increased!

Audi chip tuning for Audi RS models


Want to see all of our install videos for Audi?
Click here

Want to see the power gains for the Audi RS4 on our website?

Click here

Want to find the custom tuning box for your vehicle?
Click here