

Professional tuning in 4 stages for AEB engines
So, you’d finally like to get to grips with your engine’s performance, and find out what 320 hp feels like? That’s precisely why we’ve written the tuning guide for all 1.8T engines with code AEB. Here, we show you how to professionally tune your Passat or A4 in four stages. You’ll also find out all the products you need, and get valuable tips from Bartek personally.
Engine Code:
AEB
Installed in:
- VW Passat 3b
- Audi A4
Year of manufacture:
1998 – 2005
You need that extra, so it lasts a long time:
Here you do not need any additional components. Just install and have fun! Do not use longlife oil. Better is our oil.
BAR-TEK® tips!
We recommend to refuel 102 octane fuel. This gives your engine more power because it knocks less! The turbocharger should not be too old and the engine should be in good condition. The base must be right.
BAR-TEK® tips!
We recommend to refuel 102 octane fuel. This gives your engine more power because it knocks less! The turbocharger should not be too old and the engine should be in good condition. The base must be right.


Immediately ready for shipment!
You need that extra, so it lasts a long time:
To bring the extra power on the road, you need a sport clutch. If you build our RS Turbo, you can drive even more power and the turbo lasts much longer than the normal K04, as it can not transmit the power. For the conversion to K04-015 turbocharger you have to install a racing cat and our upgrade air mass meter.
If you already have a Sportkat, a suction hose and an upgrade intercooler installed, you can use it again. The Sportkat is very important for the 1.8T engines in the Passat and Audi A4. Because the catalytic converter sits just behind the turbocharger, the exhaust gas temperature is too high. Our Sportkat upgrade prevents this and lowers the temperature with less exhaust backpressure. If you want to land at 220 PS, order directly the Tuning Kit Level 3!
If you already have a Sportkat, a suction hose and an upgrade intercooler installed, you can use it again. The Sportkat is very important for the 1.8T engines in the Passat and Audi A4. Because the catalytic converter sits just behind the turbocharger, the exhaust gas temperature is too high. Our Sportkat upgrade prevents this and lowers the temperature with less exhaust backpressure. If you want to land at 220 PS, order directly the Tuning Kit Level 3!




Immediately ready for shipment!
You need that extra, so it lasts a long time:
To bring the extra power on the road you need a sport clutch, because the original can not transmit the power. For the conversion to K04-015 turbocharger you have to install a racing cat and our upgrade air mass meter.
With the tuning kit level 3 you have the extended development of kit 2. Here you have 380cc injectors and an upgrade manifold and a further optimized software! If you already have a Sportkat, intake hose and an upgrade intercooler installed, you can continue to use it. With a large intercooler you have the complete power available in the summer!
With the tuning kit level 3 you have the extended development of kit 2. Here you have 380cc injectors and an upgrade manifold and a further optimized software! If you already have a Sportkat, intake hose and an upgrade intercooler installed, you can continue to use it. With a large intercooler you have the complete power available in the summer!



Immediately ready for shipment!
You need that extra, so it lasts a long time:
320 PS: This is an announcement! To drive this performance, you'll need to replace your connecting rods with H-shaft connecting rods. So that then the 320 PS also get on the road, a sports clutch kit is required. The exhaust must be a 76 mm exhaust system. The fuel pump should be the upgrade version, otherwise motor death threatens by leaning.
This conversion requires good software tuning. You can send us your ECU or have your vehicle tuned directly in our workshop. Another tip from us: You should build the downpipe in 70 mm, as it is very narrow at the Passat and Audi A4 below the axle body to the body. You should put the catalyst down. This reduces the exhaust gas temperature and protects the turbocharger!
This conversion requires good software tuning. You can send us your ECU or have your vehicle tuned directly in our workshop. Another tip from us: You should build the downpipe in 70 mm, as it is very narrow at the Passat and Audi A4 below the axle body to the body. You should put the catalyst down. This reduces the exhaust gas temperature and protects the turbocharger!
The services listed here are based on our experience and can only indicate a tendency. All information is therefore without guarantee. Every engine is different and many factors play a major role in maximizing the performance that can be achieved. For example, the fuel used, software tuning or mileage. Test your engine through its paces on our 1000 PS dynamometer! Here we can measure with a tolerance of +/- 1 percent. For further questions please contact us by phone or e-mail. We are glad to help you.