Technical guides
Fitment, materials, dyno data and tuning answers from the people who build the parts. Written by AZ Motorsport in Québec.
Shopping for a modified exhaust near Brossard? Compare valved exhausts, cat-back/race systems, downpipes and headers before you order, with fitment, CEL, tuning, winter and...
Planning Stage 2 with a downpipe? Verify fitment, CEL risk, tune support, install order, validation, and Québec/Canada road-use caveats.
Choosing an M340i downpipe or valved exhaust? Compare sound, fitment, tune and CEL risk, Québec/Canada caveats, and the best AZM upgrade order.
Shopping Audi RS7 catless downpipes or C8 RS6/RS7 downpipes? Check AZM fitment, CEL risk, tuning, sound and Canada/Québec race-use notes.
Choosing Ferrari F12 downpipes, a race exhaust, or both? Compare sound, CEL risk, tuning, fitment and Canada/Québec race-use caveats before ordering.
Choosing between a Lamborghini Urus exhaust and downpipes? Compare sound, CEL risk, tuning, road-use caveats, install order and AZM Urus product options before you...
Compare Mercedes AMG downpipes for E63, S63 and C63 models with fitment links, CEL and tuning caveats, install checks, and Québec/Canada buyer notes.
Compare Porsche Cayenne Turbo GT exhaust and downpipe options by fitment, sound, CEL risk, race-use notes, and which AZM setup to choose.
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...
Shopping BMW S63 downpipes or an exhaust for an M5, X5M, X6M or M8? Use this fitment-first guide to match the right AZM part...
Learn the real difference between Stage 1 and Stage 2 tuning, what affects cost, when a downpipe matters, and how Québec dyno validation helps.
Shopping Audi RS5 catless downpipes? Confirm AZM B9/B9.5 Coupe and Sportback fitment, race-use notes, CEL/tuning questions and buyer checks.
