Audi 3.0T Tech Guides & News
Audi PCV Valve: 3.0T Symptoms, Diagnosis and the Right Part Number
Whistling, rough idle, lean codes and an oil cap that fights back? Here is how...
Read more
Audi A4 Downpipe Guide: 2.0T Facts and Why the S4 Shops Differently
Every US-market B8, B8.5 and B9 A4 runs the 2.0T four-cylinder, and its downpipe is...
Read more
MAF Sensor Audi A4: Symptoms, Live Data Tests, Cleaning and Replacement
Is your MAF sensor Audi A4 problem real or a vacuum leak in disguise? Learn...
Read more
Audi Q5 Modified: 5 Example Build Recipes for the Q5 and SQ5
Five example build recipes for an Audi Q5 modified the right way, from a reliability-first...
Read more
Audi S4 Supercharged: B8/B8.5 3.0T Ownership Guide and What Fails
The 2010-2016 Audi S4 supercharged is a modern classic with a few plastic weak spots....
Read more
Audi RS7 Tuning: C8 4.0T Stages, Downpipes and What Actually Holds Up
Audi RS7 tuning for the C8 EA825 4.0T: what Stage 1, 2 and 3 really...
Read more
How to Measure Wheel Offset: Formula, Backspacing and Audi Brake Clearance
How to measure wheel offset with a straightedge and a tape: the backspacing formula, a...
Read more
How to Install Headers on Audi 3.0T: EA837 Step-by-Step Guide
A real-world guide to how to install headers on an Audi 3.0T: in-car versus powertrain...
Read more
Audi Performance Parts Glossary: 3.0T, 4.0T and Tuning Terms Decoded
Plain-English definitions of the engine codes, supercharger, turbo, exhaust, cooling, drivetrain and wheel terms you...
Read more
Tensioner Pulley Replacement Cost: Real Estimates and the Audi 3.0T Fix
What a tensioner pulley replacement really costs, what drives the quote, and why the plastic...
Read more
Audi S4 B9 Exhaust Guide: Options, Sound and the Upgrades That Matter
Shopping for an Audi S4 B9 exhaust? Here is how the EA839 exhaust is laid...
Read more
High Flow Catted Downpipe Guide: Cell Counts, CELs and Audi Fitment
A high flow catted downpipe keeps a converter in the pipe but swaps the choking...
Read more
