There’s no two ways about it, the Audi RS4 Avant is a fast car. Thanks to a 2.9 liter twin-turbocharged V6, Audi claims the RS4 makes 444 hp and 443 lb-ft of torque. While not as much as the Mercedes-AMG C63 or Alfa Romeo Giulia Quadrifoglio, it’s still enough to get the RS4 from 0-60 mph in 4.0 seconds flat, according to Audi. However, we’ve seen tests get as low as 3.8 seconds. Which is surprising, given that those performance figures are right in line with its more powerful competition. That fact has a lot of enthusiasts wondering if the RS4’s actual power output is more than Audi claims. So Carwow took its long-term Audi RS4 tester to a dyno to see how much power it actually makes.
To be honest, most modern turbocharged Audi engines make more power than claimed. In fact, most modern German engines do this, as BMW, Mercedes-Benz and Porsche all have been found to have engines making more power than claimed. So it was almost expected that the dyno results would show the RS4 pumping out a few more ponies than advertised. So how much power does it actually make?
Well, after the first run on the dyno, the Audi RS4 Avant made 452 hp, which is a few more than Audi’s claimed figure. After the second run, though, it pushed 460 hp, making it 16 hp more than its claimed 444. While not a massive amount more, it’s still more, which is nice. Ever better, its claimed torque output was 480 lb-ft, significantly up from its claimed 443. That extra bit of torque is likely what makes the RS4 as fast as its punchier rivals.
So if you own an Audi RS4 Avant, today is a good day for you, as you now know that your expensive performance car makes even more power than you originally thought. Even better than that, the dyno technician claimed that, with just a simple tune, it could put out over 500 hp. With a tune, you can say goodbye to any AMG or BMW M competitors that might pull up alongside you.