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High-flow port fuel injectors for auxiliary port injection on Audi 3.0T and 4.0T direct injection engines
Direct Injection

550cc Injectors for Audi: Port vs Direct Injection on the 3.0T and 4.0T

Thinking about 550cc injectors for your Audi? Here is why Bosch-style 550cc port injectors do...
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Ultrasonic injector cleaning and flow testing service for Audi 3.0T direct injection fuel injectors
Audi 3.0T

Ultrasonic Injector Cleaning: Process, Flow Testing and Clean vs Replace

How ultrasonic injector cleaning works, why flow testing before and after matters, and how to...
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