Direnza – BMW 1 Series F40 M135i xDrive 2019+ 3″ GPF Delete Downpipe

Direnza GPF delete pipes are manufactured from T304 grade Brushed Steel for those intense track-sessions.

A direct replacement for the stock part, Direnza mandrel-bent exhaust components are fully TIG welded and feature CNC-machined flanges for strength and an accurate, secure fit every time.

Engineered to not only improve power and torque across the entire RPM range but increase volume and allow for additional power in the future should you ever want it.

• 3″ Diameter for maximum gas flow giving optimum performance increases
• Replaces restrictive GPF which restricts gaining more power from the 2.0L B48 turbo engine
• Tig welded from T304 stainless steel for maximum strength and rust prevention
• Designed to be a direct replacement for the OEM GPF for ease of installation
• GPF Delete Decibel Readings:
  Valves Closed: 81.9DB
  Valves Open: 85.5DB

May require bypass software on vehicle ECU.