Audi 3.0T Tech Guides & News
38mm Wastegate Guide: Sizing, Springs, V-Band Flanges and Fitment
How a 38mm external wastegate controls boost, the difference between the bolted F38 and the...
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46mm Wastegate Guide: Sizing, Springs, Flanges and Boost Creep Fixes
How a 46mm external wastegate controls boost, when it makes sense over a 38mm or...
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Auxiliary Radiator Audi Guide: 3.0T and 4.0T Low-Temp vs Engine Loop
Audi uses "auxiliary radiator" for two very different parts. Learn which one cools your engine...
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Test Pipes vs High Flow Cats: Which One Fits Your Audi 3.0T or 4.0T?
Test pipes or high flow cats? This decision guide compares flow, sound, smell, check engine...
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PCV Breather Hose Audi 3.0T: Part Numbers, Cracks and Fitment
Cracked plastic PCV breather hoses are one of the sneakiest vacuum leaks on the Audi...
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Audi Cylinder Head Gasket Set: What It Covers and What to Add on a 3.0T
What an Audi cylinder head gasket set really covers, why MLS gaskets and single-use head...
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Audi Forged Wheels Buying Guide: B8, B9, C7 and C8 Sizing and Finishes
The Audi forged wheels buying guide by platform: what changes from a B8 S4 to...
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Catless Downpipe vs Catted: Power, Sound, Smell, CEL and Resale
Six rounds, two contenders. We put catless and catted downpipes head to head on power,...
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Audi Downpipe Buyers Guide: 10 Checks for 3.0T and 4.0T Owners
Before you spend four figures on exhaust, run this 10-point checklist. Materials, flanges, O2 bungs,...
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Intercooler Leak Symptoms on the Audi 3.0T: Coolant Loss, Smoke, Boost Loss
Losing coolant with no puddle, white smoke on startup, or a stumble after a short...
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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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