Audi 3.0T Tech Guides & News
Audi S5 Build Guide: A Stage-by-Stage Plan for the B8.5 and B9 3.0T
A stage-by-stage Audi S5 build plan for the supercharged B8.5 and turbo B9 3.0T, from...
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Intercooler Benefits for the Audi 3.0T: Cooler Air, Consistent Power and the Upgrades Worth Buying
What an intercooler really does for a supercharged or turbo Audi 3.0T, why power fades...
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Audi 3.0T Thermostat Housing: Billet OEM+ Upgrade for Gen 1 and CREC
Why the factory plastic Audi 3.0T thermostat housing cracks, what to look for in a...
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Heat Exchanger Replacement Cost: Audi 3.0T Parts, Labor and Dealer vs DIY
What does an Audi 3.0T supercharger heat exchanger replacement really cost? Parts, labor, dealer vs...
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Are High Flow Catalytic Converters Legal? EPA, CARB and Inspection Rules
Are high flow catalytic converters legal? It depends on federal rules, your state, the exact...
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Three Bolt Exhaust Flange: Dimensions, Bolt Patterns, Gaskets and Repair
Everything about the three bolt exhaust flange: common bolt circle dimensions by pipe size, how...
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G13 Coolant for Audi: Chemistry, Mixing Rules and Flush-and-Fill Tips
G13 coolant is not just "the purple stuff." Learn what TL 774-J actually is, what...
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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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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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