Audi 3.0T Tech Guides & News
Coolant Control Valve on Audi: What It Actually Does
Understand how the coolant control valve works in Audi cooling and charging systems, the symptoms...
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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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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...
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