Downpipes
Audi RS6/RS7 C8 Downpipes Guide: Catless Fitment, CEL Risk, Tuning and What to Check Before Ordering
Shopping Audi RS7 catless downpipes or C8 RS6/RS7 downpipes? Check AZM fitment, CEL risk, tuning, sound and Canada/Québec race-use notes.
Technical guides
Guides
Fitment, materials, dyno data and tuning answers from the people who build the parts. Written by AZ Motorsport in Québec.
HeadersAudi R8 V10 Race Headers Guide: Fitment, Sound, CEL Risk and What to Check Before Ordering
Shopping Audi R8 V10 headers? See AZM R8 race header fitment, sound expectations, CEL/tuning cautions and Canada/Québec race-use notes before ordering.
DownpipesAudi RS3 8Y Downpipe & Exhaust Fitment Guide: What Fits, What to Check, and Which Upgrade Comes First
Shopping an Audi RS3 8Y downpipe or exhaust? Use this fitment-first guide to compare downpipe vs race exhaust upgrades, tuning/CEL caveats, and AZM product...
DownpipesAudi RS5 Catless Downpipes: B9/B9.5 Fitment, CEL Questions and What to Check Before Ordering
Shopping Audi RS5 catless downpipes? Confirm AZM B9/B9.5 Coupe and Sportback fitment, race-use notes, CEL/tuning questions and buyer checks.
DownpipesCatted vs Catless Downpipes: Which Should You Run?
Manufacturer-direct guide to choosing between catted and catless downpipes: power, sound, emissions and warranty. Dyno-proven, built in Québec — no customs fees in Canada.
