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Pop Off Valve BAR-TEK®
- Better response
- Less turbo lag
- Plug & Play
- max. charge pressure 1,6 Bar

- Description
- better response, i.e. better throttle response
- better opening characteristics
- Reduction of the turbo lag
- no problems with high boost pressure
- noble look
- very robust and high quality.
- 100% aluminum
- 25mm hose connections
- Easy installation
- Fits for
- Videos
- Questions about the product
- Reviews
- Blog Posts
- Accessories
Aluminum piston pop off with real aluminum piston (closed system) for all 1.8T engines.
This diverter valve replaces the often defective pop-off valve and thus guarantees optimal boost pressure control.
Ideal for all series or even more powerful turbo vehicles.
The Pop Off guarantees stable, permanent and full engine performance.
Features:
Scope of delivery:
Plug & Play aluminum piston pop off valve, pre-greased.
Built-in spring sufficient for a max. Boost pressure of 1.6 bar.
For the following models:
All VAG 1.8 T & 2.7 T & RS6
Audi TT / S3 / A3 / A4 / S4B5 / RS4B5 / S4C5 / S2 / RS2 / RS6
Seat / Skoda / VW 1.8 T.
Porsche 911/930/944/996 turbo
Manufacturer
Information about the manufacturer
BAR-TEK®
BAR-TEK Motorsport GmbH
Im Rauschen Auel 3, 51491 Overath-Brombach, Germany
info@bar-tek.com
Engine | Engine code |
---|---|
1.8T | AGU | 150 hp (110 kW) |
1.8T | AJQ | 180 hp (132 kW) |
1.8T | AMK | 210 hp (154 kW) |
1.8T | APP | 180 hp (132 kW) |
1.8T | APY | 210 hp (154 kW) |
1.8T | AQA | 150 hp (110 kW) |
1.8T | ARX | 150 hp (110 kW) |
1.8T | ARY | 180 hp (132 kW) |
1.8T | ARZ | 150 hp (110 kW) |
1.8T | AUL | 210 hp (154 kW) |
1.8T | AUM | 150 hp (110 kW) |
1.8T | AUQ | 180 hp (132 kW) |
1.8T | BAM | 225 hp (165 kW) |
Engine | Engine code |
---|---|
1.8T | AEB | 150 hp (110 kW) |
1.8T | AJL | 180 hp (132 kW) |
1.8T | ANB | 150 hp (110 kW) |
1.8T | APU | 150 hp (110 kW) |
1.8T | ARK | 150 hp (110 kW) |
1.8T | AWT | 150 hp (110 kW) |
2.7 Biturbo | AGB | 265 hp (195 kW) |
2.7 Biturbo | ASJ | 380 hp (280 kW) |
2.7 Biturbo | AZB | 265 hp (195 kW) |
2.7 Biturbo | AZR | 380 hp (280 kW) |
Engine | Engine code |
---|---|
1.8T | AVJ | 150 hp (110 kW) |
1.8T | BEX | 190 hp (140 kW) |
1.8T | BFB | 163 hp (120 kW) |
Engine | Engine code |
---|---|
1.8T | BFB | 163 hp (120 kW) |
Engine | Engine code |
---|---|
1.8T | AEB | 150 hp (110 kW) |
1.8T | AJL | 180 hp (132 kW) |
1.8T | ANB | 150 hp (110 kW) |
1.8T | APU | 150 hp (110 kW) |
1.8T | ARK | 150 hp (110 kW) |
1.8T | AWT | 150 hp (110 kW) |
Engine | Engine code |
---|---|
1.8T | AJQ | 180 hp (132 kW) |
1.8T | APP | 180 hp (132 kW) |
1.8T | APX | 224 hp (165 kW) |
1.8T | ARY | 180 hp (132 kW) |
1.8T | AUM | 150 hp (110 kW) |
1.8T | AUQ | 180 hp (132 kW) |
1.8T | BAM | 225 hp (165 kW) |
1.8T | BEA | 224 hp (165 kW) |
1.8T | BFV | 240 hp (177 kW) |
1.8T | BVP | 163 hp (120 kW) |
1.8T | BVR | 190 hp (140 kW) |
Engine | Engine code |
---|---|
1.8T | AQX | 156 hp (115 kW) |
1.8T | AYP | 156 hp (115 kW) |
Engine | Engine code |
---|---|
1.8T | CFMA | 150 hp (110 kW) |
Engine | Engine code |
---|---|
1.8T | AQX | 156 hp (115 kW) |
1.8T | AYP | 156 hp (115 kW) |
1.8T | AYP | 180 hp (132 kW) |
Engine | Engine code |
---|---|
1.8T | BBU | 180 hp (132 kW) |
1.8T | BJX | 150 hp (110 kW) |
1.8T | BKV | 150 hp (110 kW) |
Engine | Engine code |
---|---|
1.8T | AJQ | 180 hp (132 kW) |
1.8T | AMK | 210 hp (154 kW) |
1.8T | APP | 180 hp (132 kW) |
1.8T | ARY | 180 hp (132 kW) |
1.8T | AUQ | 180 hp (132 kW) |
1.8T | BAM | 225 hp (165 kW) |
Engine | Engine code |
---|---|
1.8T | AUQ | 180 hp (132 kW) |
Engine | Engine code |
---|---|
1.8T | AGU | 150 hp (110 kW) |
1.8T | ARX | 150 hp (110 kW) |
1.8T | ARZ | 150 hp (110 kW) |
1.8T | AUM | 150 hp (110 kW) |
1.8T | AUQ | 180 hp (132 kW) |
Engine | Engine code |
---|---|
1.8T | AWT | 150 hp (110 kW) |
Engine | Engine code |
---|---|
1.8T | APH | 150 hp (110 kW) |
1.8T | AVC | 150 hp (110 kW) |
1.8T | AWC | 150 hp (110 kW) |
1.8T | AWP | 180 hp (132 kW) |
1.8T | AWU | 150 hp (110 kW) |
1.8T | AWV | 150 hp (110 kW) |
1.8T | BKF | 150 hp (110 kW) |
Engine | Engine code |
---|---|
1.8T | AGU | 150 hp (110 kW) |
1.8T | ARZ | 150 hp (110 kW) |
1.8T | AUM | 150 hp (110 kW) |
1.8T | AUQ | 180 hp (132 kW) |
Engine | Engine code |
---|---|
1.8T | AGU | 150 hp (110 kW) |
1.8T | ARX | 150 hp (110 kW) |
1.8T | AUM | 150 hp (110 kW) |
1.8T | AUQ | 180 hp (132 kW) |
Engine | Engine code |
---|---|
1.8T | AEB | 150 hp (110 kW) |
1.8T | ANB | 150 hp (110 kW) |
1.8T | APU | 150 hp (110 kW) |
Engine | Engine code |
---|---|
1.8T | AWT | 150 hp (110 kW) |
Engine | Engine code |
---|---|
1.8T | BBU | 180 hp (132 kW) |
1.8T | BJX | 150 hp (110 kW) |
Engine | Engine code |
---|---|
1.8T | AJH | 150 hp (110 kW) |
1.8T | AWC | 150 hp (110 kW) |







1.8T Engine Tuning Guides
Tuning guide for 1.8T AGU engines with 150 PS
Maximum power for Golf 4 and A3 with engine code AGU

1.8T Engine Tuning Guides
Tuning-Guide for 1.8T APP, ARY, AUQ engines with 180 hp
From 180 hp up to 666 hp with your 1.8T engine!

1.8T Engine Tuning Guides
Tuning-Guide for 1.8T BFB engines with 163 hp
More driving fun with your Audi A4 - up to 666 hp!

Full power for your Audi A4: Up to 666 hp performance!

1.8T Engine Tuning Guides
Tuning guide for 1.8T AUM, ARX, AQX engines with 150 hp
Pro guide for up to 666 hp power!
Accessories
Aluminum piston pop off with real aluminum piston (closed system) for all 1.8T engines.
This diverter valve replaces the often defective pop-off valve and thus guarantees optimal boost pressure control.
Ideal for all series or even more powerful turbo vehicles.
The Pop Off guarantees stable, permanent and full engine performance.
Features:
- better response, i.e. better throttle response
- better opening characteristics
- Reduction of the turbo lag
- no problems with high boost pressure
- noble look
- very robust and high quality.
- 100% aluminum
- 25mm hose connections
- Easy installation
Scope of delivery:
Plug & Play aluminum piston pop off valve, pre-greased.
Built-in spring sufficient for a max. Boost pressure of 1.6 bar.
For the following models:
All VAG 1.8 T & 2.7 T & RS6
Audi TT / S3 / A3 / A4 / S4B5 / RS4B5 / S4C5 / S2 / RS2 / RS6
Seat / Skoda / VW 1.8 T.
Porsche 911/930/944/996 turbo
Manufacturer
Information about the manufacturer
BAR-TEK®
BAR-TEK Motorsport GmbH
Im Rauschen Auel 3, 51491 Overath-Brombach, Germany
info@bar-tek.com
Engine | Engine code |
---|---|
1.8T | AGU | 150 hp (110 kW) |
1.8T | AJQ | 180 hp (132 kW) |
1.8T | AMK | 210 hp (154 kW) |
1.8T | APP | 180 hp (132 kW) |
1.8T | APY | 210 hp (154 kW) |
1.8T | AQA | 150 hp (110 kW) |
1.8T | ARX | 150 hp (110 kW) |
1.8T | ARY | 180 hp (132 kW) |
1.8T | ARZ | 150 hp (110 kW) |
1.8T | AUL | 210 hp (154 kW) |
1.8T | AUM | 150 hp (110 kW) |
1.8T | AUQ | 180 hp (132 kW) |
1.8T | BAM | 225 hp (165 kW) |
Engine | Engine code |
---|---|
1.8T | AEB | 150 hp (110 kW) |
1.8T | AJL | 180 hp (132 kW) |
1.8T | ANB | 150 hp (110 kW) |
1.8T | APU | 150 hp (110 kW) |
1.8T | ARK | 150 hp (110 kW) |
1.8T | AWT | 150 hp (110 kW) |
2.7 Biturbo | AGB | 265 hp (195 kW) |
2.7 Biturbo | ASJ | 380 hp (280 kW) |
2.7 Biturbo | AZB | 265 hp (195 kW) |
2.7 Biturbo | AZR | 380 hp (280 kW) |
Engine | Engine code |
---|---|
1.8T | AVJ | 150 hp (110 kW) |
1.8T | BEX | 190 hp (140 kW) |
1.8T | BFB | 163 hp (120 kW) |
Engine | Engine code |
---|---|
1.8T | BFB | 163 hp (120 kW) |
Engine | Engine code |
---|---|
1.8T | AEB | 150 hp (110 kW) |
1.8T | AJL | 180 hp (132 kW) |
1.8T | ANB | 150 hp (110 kW) |
1.8T | APU | 150 hp (110 kW) |
1.8T | ARK | 150 hp (110 kW) |
1.8T | AWT | 150 hp (110 kW) |
Engine | Engine code |
---|---|
1.8T | AJQ | 180 hp (132 kW) |
1.8T | APP | 180 hp (132 kW) |
1.8T | APX | 224 hp (165 kW) |
1.8T | ARY | 180 hp (132 kW) |
1.8T | AUM | 150 hp (110 kW) |
1.8T | AUQ | 180 hp (132 kW) |
1.8T | BAM | 225 hp (165 kW) |
1.8T | BEA | 224 hp (165 kW) |
1.8T | BFV | 240 hp (177 kW) |
1.8T | BVP | 163 hp (120 kW) |
1.8T | BVR | 190 hp (140 kW) |
Engine | Engine code |
---|---|
1.8T | AQX | 156 hp (115 kW) |
1.8T | AYP | 156 hp (115 kW) |
Engine | Engine code |
---|---|
1.8T | CFMA | 150 hp (110 kW) |
Engine | Engine code |
---|---|
1.8T | AQX | 156 hp (115 kW) |
1.8T | AYP | 156 hp (115 kW) |
1.8T | AYP | 180 hp (132 kW) |
Engine | Engine code |
---|---|
1.8T | BBU | 180 hp (132 kW) |
1.8T | BJX | 150 hp (110 kW) |
1.8T | BKV | 150 hp (110 kW) |
Engine | Engine code |
---|---|
1.8T | AJQ | 180 hp (132 kW) |
1.8T | AMK | 210 hp (154 kW) |
1.8T | APP | 180 hp (132 kW) |
1.8T | ARY | 180 hp (132 kW) |
1.8T | AUQ | 180 hp (132 kW) |
1.8T | BAM | 225 hp (165 kW) |
Engine | Engine code |
---|---|
1.8T | AUQ | 180 hp (132 kW) |
Engine | Engine code |
---|---|
1.8T | AGU | 150 hp (110 kW) |
1.8T | ARX | 150 hp (110 kW) |
1.8T | ARZ | 150 hp (110 kW) |
1.8T | AUM | 150 hp (110 kW) |
1.8T | AUQ | 180 hp (132 kW) |
Engine | Engine code |
---|---|
1.8T | AWT | 150 hp (110 kW) |
Engine | Engine code |
---|---|
1.8T | APH | 150 hp (110 kW) |
1.8T | AVC | 150 hp (110 kW) |
1.8T | AWC | 150 hp (110 kW) |
1.8T | AWP | 180 hp (132 kW) |
1.8T | AWU | 150 hp (110 kW) |
1.8T | AWV | 150 hp (110 kW) |
1.8T | BKF | 150 hp (110 kW) |
Engine | Engine code |
---|---|
1.8T | AGU | 150 hp (110 kW) |
1.8T | ARZ | 150 hp (110 kW) |
1.8T | AUM | 150 hp (110 kW) |
1.8T | AUQ | 180 hp (132 kW) |
Engine | Engine code |
---|---|
1.8T | AGU | 150 hp (110 kW) |
1.8T | ARX | 150 hp (110 kW) |
1.8T | AUM | 150 hp (110 kW) |
1.8T | AUQ | 180 hp (132 kW) |
Engine | Engine code |
---|---|
1.8T | AEB | 150 hp (110 kW) |
1.8T | ANB | 150 hp (110 kW) |
1.8T | APU | 150 hp (110 kW) |
Engine | Engine code |
---|---|
1.8T | AWT | 150 hp (110 kW) |
Engine | Engine code |
---|---|
1.8T | BBU | 180 hp (132 kW) |
1.8T | BJX | 150 hp (110 kW) |
Engine | Engine code |
---|---|
1.8T | AJH | 150 hp (110 kW) |
1.8T | AWC | 150 hp (110 kW) |






1.8T Engine Tuning Guides
Tuning guide for 1.8T AGU engines with 150 PS
Maximum power for Golf 4 and A3 with engine code AGU

1.8T Engine Tuning Guides
Tuning-Guide for 1.8T APP, ARY, AUQ engines with 180 hp
From 180 hp up to 666 hp with your 1.8T engine!

1.8T Engine Tuning Guides
Tuning-Guide for 1.8T BFB engines with 163 hp
More driving fun with your Audi A4 - up to 666 hp!

Full power for your Audi A4: Up to 666 hp performance!

1.8T Engine Tuning Guides
Tuning guide for 1.8T AUM, ARX, AQX engines with 150 hp
Pro guide for up to 666 hp power!
Accessories