Downpipes
BMW S63 Downpipe & Exhaust Fitment Guide: M5 F90 vs X5M/X6M
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...
Technical guides
Guides
Fitment, materials, dyno data and tuning answers from the people who build the parts. Written by AZ Motorsport in Québec.
DownpipesStage 1 vs Stage 2 Tuning: What Changes, What It Costs, and When You Need Supporting Mods
Learn the real difference between Stage 1 and Stage 2 tuning, what affects cost, when a downpipe matters, and how Québec dyno validation helps.
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.
DownpipesMcLaren 765LT / 750S Exhaust Buyer Guide: Sound, Fitment, Weight and OEM Comparison
Compare McLaren 765LT and 750S exhaust options by sound, fitment, weight, downpipes vs rear section, and race-use notes for Canadian buyers.
DownpipesLamborghini Exhaust Guide: Huracán, Aventador and Urus Fitment, Sound and Downpipe Choices
Compare AZM Lamborghini exhaust options for Huracán, Aventador and Urus: fitment, valves, titanium vs stainless, downpipes, headers and Canada buyer notes.
DownpipesWhich B58 Downpipe Fits My M340i, M440i or M240i? GEN1 vs GEN2 vs GEN3 LCI
Confused by BMW B58 GEN1, GEN2 and GEN3 LCI downpipes? Use this AZM fitment guide to match your M340i, M440i or M240i by chassis...
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.
