ICP BMW N55 Downpipe (M135i/M235i/M2/335i/435i – F-Series)

The ICP BMW N55 Downpipe is one of the most effective upgrades for BMW’s turbocharged inline-6 in the F-Series M135i, M235i, M2, 335i, and 435i. Replacing the restrictive factory downpipe improves flow, reduces turbo lag, and produces dramatic horsepower gains when tuned.

Manufactured from 304 stainless steel with CNC flanges and TIG welds, the ICP N55 Downpipe ensures strength and precision fitment. Available in both catless and catted configurations, each includes an integrated heatshield for thermal efficiency.

Fitment:

• BMW M135i (F20/F21) 2012–2016
• BMW M235i (F22/F23) 2014–2016
• BMW 335i (F30/F31/F34) 2012–2015
• BMW 435i (F32/F33/F36) 2013–2016
• BMW M2 (F87, N55 engine) 2016–2018

Key Features:

• Designed for BMW N55 turbo inline-6 (F-Series sport models)
• Catless and catted options with heatshield
• Gains of +25–35 HP with tune
• Aggressive induction/exhaust tone
• OEM-like bolt-on fitment