Downpipes
BMW S58 Downpipe & Race Exhaust Guide: M2 G87, M3/M4 G80/G82 and X3M/X4M Fitment
Choosing BMW S58 downpipes or a race exhaust? Compare M2 G87, M3/M4 G80/G82 and X3M/X4M F97/F98 fitment, CEL risk, tuning and Canada/Québec caveats.
Technical guides
Guides
Fitment, materials, dyno data and tuning answers from the people who build the parts. Written by AZ Motorsport in Québec.
Exhaust SystemsPorsche Panamera Turbo S 971.2 Race Exhaust Guide: Fitment, Sound, Valves and Buying Checks
Shopping a Porsche Panamera Turbo S 971.2 exhaust? Check fitment, valves, sound, tuning, CEL risk and Québec/Canada questions before ordering.
AMG GTMercedes-AMG GT Downpipes Guide: C190, GT S/GTR/GTC and Black Series Fitment, CEL and Tuning Questions
Shopping Mercedes AMG GT downpipes? Use this fitment-first guide to separate C190/R190 GT S, GT C and GT R, GT Black Series, and GT63S...
DownpipesToyota Supra A90 Downpipe Guide: Fitment, CEL Risk, Stage 2 Tuning and Install Questions
Shopping for a Toyota Supra A90 downpipe? Confirm 2020+ B58 fitment, CEL risk, Stage 2 tuning and Canada/Québec race-use caveats.
DownpipesMercedes G63 Downpipes: W463 vs W463A Fitment, CEL Risk and Tuning Questions
Shopping Mercedes G63 downpipes? Compare W463 vs W463A fitment, M157/M177 options, CEL risk, tuning and Canada/Québec race-use caveats.
DownpipesBMW X5M/X6M Exhaust vs Downpipes: F95/F96 Fitment, S63 vs S68 LCI and Upgrade Order
Compare BMW X5M exhaust and downpipes for F95/F96, including S63 vs S68 LCI fitment, valves, CEL risk, tuning and Canada race-use caveats.
DownpipesPorsche 992 Turbo S Downpipes vs Race Exhaust: Fitment, Sound, CEL Risk and Upgrade Order
Choosing Porsche 992 Turbo S downpipes, a race exhaust, headers or all three? Compare fitment, sound, CEL risk, tuning and Canada/Québec caveats.
DownpipesCorvette C8 Z06 Downpipes vs Race Exhaust: Catted/Catless Choices, CEL Risk and Upgrade Order
Choosing Corvette C8 Z06 downpipes or a race exhaust? Compare catted vs catless front pipes, sound, CEL risk, tuning, fitment and race-use caveats.
DownpipesFerrari SF90, 296 and 812 Exhaust Guide: Downpipes, Race Exhaust, Sound and Fitment Checks
Compare Ferrari SF90 downpipes, 296 exhaust options and 812 exhaust upgrades by platform, sound goals, CEL/tune risk, fitment checks and Canada/Québec race-use caveats.
AudiAudi RSQ8 Downpipes vs Race Exhaust: Fitment, Sound, CEL Risk and Upgrade Order
Compare Audi RSQ8 downpipes, the AZM RSQ8 race exhaust, and a combined setup with fitment, sound, CEL, tuning and race-use caveats before ordering.
DownpipesMcLaren 570S, 600LT and 720S Downpipes vs Race Exhaust: Fitment, Sound, CEL Risk and Upgrade Order
Compare McLaren 570S, 600LT and 720S downpipes vs race exhaust systems by fitment family, sound change, CEL risk, tuning needs and upgrade order.
DownpipesFerrari FF and GTC4Lusso Exhaust Guide: V12 Sound, Valves, Downpipes and Fitment Checks
Choosing a Ferrari FF or GTC4Lusso exhaust? Compare valved race exhausts, downpipes, V12 sound, fitment checks, CEL/tune risk, and Canada/Québec caveats before ordering.
