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!
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Up to 320 PS (235 kW) with your A4 in 3 tuning stages
Here you’ll find everything you need to exploit your Audi A4’s full potential. Our tuning guide for 1.8T engines with code BEX is divided into three clearly explained tuning stages, which tell you all the necessary parts and most important tips. This is the way to a safe and long-lasting boost in performance.
Engine Code:
BEX
Installed in:
Audi A4
Year of manufacture:
2002 – 2004
first performance level
Maximum performance for little money:
increased efficiency:
+ 20 – 25 PS
+ 90 – 100 Nm
Final output:
210-215 PS
325 – 335 Nm
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
BAR-TEK® 1.8T BEX Performance Level 1 - Bundle
Maximum performance for the small wallet
Perfect for the start
Top price-performance ratio
+
Total
€619.90
incl. VAT
Immediately ready for shipment!
second performance level
Maximum performance for little money:
increased efficiency:
+ 50 PS
+ 120 Nm
Final output:
240 PS
355 Nm
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
BAR-TEK® 1.8T BEX Performance Level 2 - Bundle
Maximum performance for the small wallet
Perfect for the start
Top price-performance ratio
+
+
+
Total
€1,494.80
incl. VAT
Immediately ready for shipment!
third performance level
Maximum performance for little money:
increased efficiency:
+ 130 PS
+ 165 Nm
Final output:
320 PS
400 Nm
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
BAR-TEK® 1.8T BEX Performance Level 3 - Bundle
Maximum performance for the small wallet
Perfect for the start
Top price-performance ratio
+
+
+
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!
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.
Expert in
Engine
Gearbox
YOUR TUNING EXPERT
BAR-TEK®
Motorsport –
Your specialist for professional Engine tuning
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!
Bartek
Bartek
Bartek
Bartek
Europe's No. 1 in engine tuning
Europe's largest store for Audi and VW engine tuning.
Same day shipping
Orders before 12 o'clock go out the same day.
All items are BAR-TEK proved
All items are tested and checked by us.
15 years of engine tuning experience
Of which 10 years in the top class of motorsports!
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