Skip to main content Skip to search Skip to main navigation
Shipping faster Secure Payment Worldwide shipping
Questions? Our chat will give you your answers!
VW Golf 4 GTI 1.8T 20V
1.8T Engine Tuning Guides
Tuning Guides

Tuning guide for 1.8T AGU engines with 150 PS

Maximum power for Golf 4 and A3 with engine code AGU
by
Bartek Bartoszewicz
Tuning Professional
0 Comments

Ultimate power for AGU engines with 150 hp

We help with your tuning project – In this tuning guide you’ll find the four tuning stages that will get your AGU engine up to as much as 320 hp. The guide doesn’t just tell you all the parts you need – it provides important tips as well. This is the safe and sure-fire way to maximum power!

Engine Code:

AGU

Installed in:

  • Golf 4
  • Audi A3

Year of manufacture:

1998 – 2002

You need this extra to make it last:

You don't need any additional components here. Simply install and have fun! Do not use Longlife oil, our Castrol Edge 10W-60 oil is better.

BAR TEK-TIP!

BAR-TEK® tips!

We recommend filling up with 102 octane fuel. This will give your engine more power because it knocks less! The turbocharger should not be too old. Engine in good condition. The basis must be right.

BAR-TEK® tips!

We recommend filling up with 102 octane fuel. This will give your engine more power because it knocks less! The turbocharger should not be too old. Engine in good condition. The basis must be right.

Product Bundle 1
Group 6
BAR-TEK® 1.8T AGU Performance Level 1 - Bundle

Average rating of 4.9 out of 5 stars

Maximum performance on a budget
Perfect for getting started
Top price-performance ratio
The engine software must also be adapted for every tuning!
+
+
Total
€576.60
incl. VAT

You need this extra to make it last:

To bring the extra power to the road, you need a sports clutch, because the original clutch cannot transfer the power. For the conversion to K04-001 RS turbocharger you have to install a racing cat and our upgrade air mass meter. A downpipe is a must.

BAR TEK-TIP!

If you have already installed a sports cat, an intake hose and an upgrade intercooler, you can continue to use them. With an upgrade intercooler you also have the complete performance available in summer! If you want to get 220 hp right away, order the tuning kit level 3 directly! That saves money.

If you have already installed a sports cat, an intake hose and an upgrade intercooler, you can continue to use them. With an upgrade intercooler you also have the complete performance available in summer! If you want to get 220 hp right away, order the tuning kit level 3 directly! That saves money.

Product Bundle 2
BAR-TEK® 1.8T AGU Performance Level 2 - Bundle

Average rating of 5 out of 5 stars

With intercooler
Next Level Tuning
Top price-performance ratio
The engine software must also be adapted for every tuning!
1.8T Hosenrohr 76mm (auch mit Kat) BAR-TEK®
+
+
+
+
Tuning Kit
+
Total
€3,497.25
incl. VAT

Immediately ready for shipment!

You need this extra to make it last:

You also need a sports clutch here. For the conversion to K04-001 RS turbocharger you have to install a racing cat and our upgrade air mass meter. A downpipe is a must. Our 1.8T oil cooler ensures optimum operating temperatures.

BAR TEK-TIP!

With the tuning kit stage 3 you have the extended extension stage of the kit stage 2. Here you have 380 ccm injectors and an upgrade manifold as well as an optimized software! If you have already installed a downpipe, an intake hose and an upgrade intercooler, you can continue to use them. With a large upgrade intercooler you also have the complete performance available in summer!

With the tuning kit stage 3 you have the extended extension stage of the kit stage 2. Here you have 380 ccm injectors and an upgrade manifold as well as an optimized software! If you have already installed a downpipe, an intake hose and an upgrade intercooler, you can continue to use them. With a large upgrade intercooler you also have the complete performance available in summer!

Product Bundle 3
BAR-TEK® 1.8T AGU Performance Level 3 - Bundle

Average rating of 0 out of 5 stars

With forged pistons & steel conrods
Ambitious tuning
Top price-performance ratio
The engine software must also be adapted for every tuning!
+
+
+
1.8T Audi S3 Upgrade Turbo Krümmer High-Flow
Total
€4,787.80
incl. VAT

Immediately ready for shipment!

You need this extra to make it last:

To drive the full 320 hp power, you have to replace your connecting rods with X-beam connecting rods. A sports clutch kit is required to get the horsepower on the road. For the exhaust you should use a 76 mm exhaust system. The pump must be an upgrade, otherwise there is a risk of engine damage due to slimming.

BAR TEK-TIP!

A proper chip tuning is required for this conversion. You can send us your control unit or have your vehicle tuned directly in our workshop. Another tip from us: Your brake system is no longer up to the high performance. You can convert it to a Brembo 4-piston brake or to the Audi S3 8L.

A proper chip tuning is required for this conversion. You can send us your control unit or have your vehicle tuned directly in our workshop. Another tip from us: Your brake system is no longer up to the high performance. You can convert it to a Brembo 4-piston brake or to the Audi S3 8L.

Product Bundle 4
BAR-TEK® 1.8T AGU Performance Level 4 - Bundle

Average rating of 5 out of 5 stars

With Tuning-Kit Stage 4
Maximum performance
Professional tuning
The engine software must also be adapted for every tuning!
1.8T Tuning-Kit STUFE 4 BAR-TEK®
+
1.8T 6-Gang Sportkupplungs-Kit Sachs organisch mit EMS-5
+
+
Total
€5,919.80
incl. VAT

Immediately ready for shipment!

The performances indicated here are based on our experience and can only indicate a tendency. Each engine is different and many factors play a serious role in the maximum power to be achieved. These include, for example, fuel, chip tuning and mileage. Therefore all data are without guarantee. Put your engine through its paces on our 1000 hp dynamometer.

We are happy to help you!

If you still have questions or need tips, we will be happy to help you. Simply contact us by phone or write us a message!

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® and helps his customers to bring VW and Audi engines to peak performance.
Expert in
Engine
Gearbox
favicon

YOUR TUNING EXPERT

BAR-TEK®

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
CF95A63C-F13D-4A49-852A-0A7E57D19FD2

Europe's No. 1 in engine tuning

Europe's largest store for Audi and VW engine tuning.
654C4D32-14E1-438B-A53E-6FAAAE0CD37C

Same day shipping

Orders before 12 o'clock go out the same day.
AA434E7D-C8FA-4D5E-B6F7-5DDF5CBDB5D6

All items are BAR-TEK® proved

All items are tested and checked by us.
5DC42BB0-B69E-460B-94AB-B05EB91F4B59

15 years of engine tuning experience

Of which 10 years in the top class of motorsports!
BAR-TEK® up close

This might also interest you

Loading…
Loading the web debug toolbar…
Attempt #