Azure Performance BMW F25/F26 N55 | X4/X4 35i | Downpipe

The Azure Performance BMW F25 / F26 N55 | X3 / X4 35i | Downpipe is a performance-driven upgrade for the N55 straight-six engine. Designed to reduce exhaust restriction and turbo lag, this downpipe delivers substantial horsepower and torque gains with proper ECU tuning while enhancing the exhaust tone and turbo response.

Features

• Constructed from high-grade SS304 stainless steel for durability and corrosion resistance.
• Available in Catless or 200 Cell Catted configurations.
• Optional Azure Heat Shield for superior thermal protection.
• Professional sand-blasted finish for an OEM+ appearance.
• Direct bolt-on replacement with no cutting or welding required.
• Optimised for reduced turbo lag and improved turbo spool.
• Designed for track use only; ECU tuning recommended for peak performance.

Product Fitment

Make	Model	Chassis Code	Years	Engine Size
BMW	X3 35i	F25	2011–2017	3.0L Turbocharged I6 (N55)
BMW	X4 35i	F26	2014–2018	3.0L Turbocharged I6 (N55)

Performance Gains

Specification	Stock (N55 Engine)	With Azure Downpipe & Tuning
Horsepower	306 HP	368 HP (+62 HP)
Torque	400 Nm	523 Nm (+123 Nm)
Power Output	228 KW	274 KW (+46 KW)

*Performance gains are based on proper ECU tuning and supporting modifications.