Audi 3.0T Tech Guides & News
3 Inch Exhaust Flange Guide: 2-Bolt vs 3-Bolt vs V-Band
Picking a 3 inch exhaust flange? Here is how 2-bolt, 3-bolt and V-band joints compare,...
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Audi 3.0T Supercharged Engine: EA837 Gen 1 vs CREC, Failures & Fixes
The Audi 3.0T supercharged engine (EA837) explained: Gen 1 vs Gen 2 CREC, which models...
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Braided Oil Lines: AN Sizing, PTFE vs Rubber and Audi 3.0T Cooler Setups
What AN sizes mean, when to choose PTFE-lined or rubber-core braided oil lines, how to...
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How to Replace Oil Filter Housing Gasket on an Audi 3.0T, Step by Step
A DIY walkthrough for replacing the oil filter housing gasket on the supercharged Audi 3.0T:...
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Audi Heat Exchanger Upgrade: Pick, Plumb and Install It Right
A buyer's and install guide to the Audi heat exchanger upgrade: what to look for...
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Vacuum Check Valve Audi 3.0T: Brake Booster, PCV and EVAP Explained
A leaking one-way valve can fake a PCV failure, a bad booster or a boost...
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High Flow Catalytic Converter: How It Works and When to Run One
How does a high flow catalytic converter work? We explain 100, 200 and 400 cell...
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Audi Supercharger Upgrade: Pulleys, Porting and Staged 3.0T Paths
Pulley, port, throttle body, cooling, tune: here is how each Audi supercharger upgrade works on...
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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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Catalytic Converter for Audi: Replace, Upgrade, or Go High Flow?
Replace or upgrade? Our catalytic converter for Audi buyer's guide covers failing-cat symptoms, OEM vs...
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Catalytic Converter Test Pipes: What They Are, Risks and Who They Suit
Catalytic converter test pipes replace your cats with open tube. Here is what that really...
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Audi Oxygen Sensor Guide: Upstream vs Downstream, Codes and Testing
An O2 code does not always mean a bad sensor. This Audi oxygen sensor guide...
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