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1.8T Engine Tuning Guides
Engine Tuning

Tuning guide for 1.8T BEX engines

Full power for your Audi A4: Up to 320 PS performance!
by
Bartek Bartoszewicz
Tuning Professional
0 Comments

In 3 power levels up to 320 PS performance with your A4

Here you will find everything you need to get the full potential out of your Audi A4. Our tuning guide for 1.8T engines with the code BEX is divided into three clear performance levels that contain all the necessary parts and the most important tips. This way, you'll succeed in getting a safe and durable performance upgrade.

 

Engine Code:

BEX

Installed in:

Audi A4

Year of manufacture:

2002 – 2004

You need this extra to make it last:

Chip tuning is a lot of fun and you don't necessarily need any additional components. However, you shouldn't use longlife oil, but rather Castrol Edge 10W-60 oil.

BAR TEK-TIP!

BAR-TEK® tips

As always at this point we recommend 102 octane as fuel. This makes the engine knock less and gives you more performance. Turbo and engine should be in good condition and not too old.

BAR-TEK® tips

As always at this point we recommend 102 octane as fuel. This makes the engine knock less and gives you more performance. Turbo and engine should be in good condition and not too old.

Product Bundle 1
Group 6
Group 6
Group 6
Group 6
Group 6
BAR-TEK® 1.8T BEX Performance Level 1 - Bundle
Maximum performance for the small wallet
Perfect for the start
Top price-performance ratio
Audi S3 1.8T 225PS Chiptuning BAR-TEK®
+
Total
€619.90
incl. VAT

Immediately ready for shipment!

You need this extra to make it last:

Here you should urgently upgrade to a sports clutch, as the original clutch cannot transfer this power. For the conversion to K04-015 turbocharger you should use a racing catalytic converter and our upgrade air mass meter.

BAR TEK-TIP!

If you have already installed a sports cat, an intake hose and an upgrade charge intercooler, you can simply continue to use them. The sports cat is very important for the 1.8T engines in the Passat and Audi A4.

If you have already installed a sports cat, an intake hose and an upgrade charge intercooler, you can simply continue to use them. The sports cat is very important for the 1.8T engines in the Passat and Audi A4.

Product Bundle 2
Group 6
Group 6
BAR-TEK® 1.8T BEX Performance Level 2 - Bundle
Maximum performance for the small wallet
Perfect for the start
Top price-performance ratio
+
+
KKK K04-015 Turbolader
+
1.8T Upgrade Turbo Krümmer geschlitzt BAR-TEK®
Total
€1,494.80
incl. VAT

Immediately ready for shipment!

You need this extra to make it last:

320 PS is a good announcement! To be able to drive this power, you should replace your connecting rods with H-beam connecting rods. Now a sports clutch kit is absolutely necessary. For the exhaust you should use a 76 mm exhaust system.

BAR TEK-TIP!

A good software tuning of all components is required for this conversion. For this you can send your control unit to us or have your car tuned by us. Another tip from us: You should convert the downpipe to 70 mm, as the Passat and Audi A4 have a very narrow body at the bottom of the axle beam. You should move the catalytic converter downwards. This will reduce the exhaust temperature and protect the turbocharger!

A good software tuning of all components is required for this conversion. For this you can send your control unit to us or have your car tuned by us. Another tip from us: You should convert the downpipe to 70 mm, as the Passat and Audi A4 have a very narrow body at the bottom of the axle beam. You should move the catalytic converter downwards. This will reduce the exhaust temperature and protect the turbocharger!

Product Bundle 3
Group 6
Group 6
Group 6
BAR-TEK® 1.8T BEX Performance Level 3 - Bundle
Maximum performance for the small wallet
Perfect for the start
Top price-performance ratio
+
+
+
1.8T Passat 3b; 3BG & Audi A4 B5; B6 200 Zeller RENNKAT Plug&Play
Total
€4,549.80
incl. VAT

Immediately ready for shipment!

These values are based on our own experience, but can vary depending on the vehicle. Since each engine is different and the maximum power depends on several factors, we can only give tendencies. If you want to know exactly what power your car is capable of, you can have it tested and tuned on our 1000 PS power dynamometer.

Questions about your 1.8T tuning?

We look forward to hearing from you and will be happy to answer your questions! Call us or send us an e-mail!

Bartek Bartoszewicz
Tuning Professional
His first car was a Polo Mk1 with a 40 Weber twin carburetor and 129 PS (95 kW). His second was an Audi 50. Today Bartek tunes Lamborghinis to 1000 PS (735 kW). Even as a young boy, Bartek disassembled vehicles and put everything back together better. He wrote his high school diploma with oil on his fingers. The trained automotive mechanic with a focus on engines and gearboxes was determined to go into motorsports. In his 10 years in Formal 1, he supervised 73 races, including as engine mechanic for Ralf Schumacher at Toyota. Since 2010, he has dedicated himself fully to his company BAR-TEK® Motorsport and helps his customers to bring VW and Audi engines to peak performance.
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We love engines, performance and speed. Here you will find everything you need to increase the performance of your engine. Especially the professional engine tuning for VW and Audi is one of our specialties. We are also happy to advise you individually and show you on our dynamometer, what you can get out of your car. In addition, we take over the tuning completely for you. Just give us a call!

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