XBimmers BMW X3 Forum BMW X3/X4 Forums (2018 - 2024) BMW X3M (F97) and X4M (F98) General Forum (2018+) For those that have Cat-less DownPipes. How is the smell? « Previous Thread Next Thread Catless Downpipe + Secondary Cats = No Smell?
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Burning smell after installing catless downpipes and smoke. Went with catless on my F10 535i Unfortunately if you daily the car the smell is quite unpleasant (feels like/worse than a diesel). So I sold it and bought catted one.
My personal recommendation is to go for catted high-flow downpipe. There is still some smell, but significantly better compared to catless setup. Works very well on Stage 2, 2.
Yes, catless downpipes definitely smell, and it's something most car owners notice. This guide explains why and what you can expect, helping you make an informed decision about your exhaust system. I just installed the vrsf catless downpipe and there's strong smell of gasoline when idling which I'm seeing seems normal.
Downpipes going out and catless downpipe smell All times are GMT -5. The time now is 05:27 AM. Discover the key differences between catted and catless downpipes for your BMW.
Learn how these components impact your vehicle's performance and emissions. Make an informed choice for your next upgrade. Catless downpipe smell BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i) > Technical / Specific Topics > 135i Turbo Engine (N54 / N55), Exhaust and Drivetrain Modifications Catless downpipe smell.
M5POST - BMW M5 Forum > F10 M5 Forum > Engine, Exhaust, Drivetrain Modifications Smell of rich mixture (raw gasoline).