The Radium Engineering 11-0001 Weld-On MAF Sensor Flange is a CNC machined billet aluminium flange for Denso air meter (MAF sensor) installations on custom inlet pipes. Designed for fabricators and enthusiasts building custom intake systems, this flange provides a precision-machined, pre-tapped mounting point for the Denso MAF sensor — eliminating the need to source or machine a flange from scratch.

The machined radius is designed for use with a 2.75" outside diameter aluminium pipe, but can be easily modified to suit 2.5-3.0" pipes. Pre-tapped M4 threads are provided for the sensor mount.

Key Features

• CNC machined and polished billet 6061-T6 aluminium — precision fit, lightweight, corrosion resistant
• Designed for 2.75" OD aluminium pipe — easily modified for 2.5-3.0" pipes
• Pre-tapped M4 threads — for Denso MAF sensor mount, no additional machining required
• Weld-on design — permanent, clean integration into custom inlet pipes
• Made in USA

Compatible Vehicles

Compatible with any vehicle using a Denso MAF sensor, including but not limited to:

Lexus

• ES300 — 1999-2003
• ES330 — 2004-2005
• GS300 — 2001-2005
• LS400 — 2001-2005
• LS430 — 2001-2005
• RX300 — 1999-2003
• RX330 — 2004-2005

Lotus

• Elise — 2004-2011
• Exige — 2004-2006
• Exige-S — 2007-2011
• 2-Eleven — 2007-2011

Mazda

• MazdaSpeed 3
• MazdaSpeed 6

Saab

• 9-2X — 2005-2006

Scion

• xA — 2004-2006
• xB — 2004-2005
• tC — 2005

Subaru

• Forester XT — 2004-2008
• Legacy GT — 2005-2009
• Impreza WRX — 2002-2007
• Impreza WRX STI — 2002-2007

Toyota

• 4Runner — 1999-2008
• Avalon — 2000-2004
• Camry — 2002-2006
• Celica — 2000-2001
• Celica GT & GTS — 2002-2005
• Corolla — 2003-2008
• Echo — 2000-2005
• FJ Cruiser — 2007-2008
• Highlander — 2001-2008
• Matrix — 2003-2008
• MR2 — 2000-2005
• Prius — 2001-2008
• RAV4 — 2001-2005
• Sienna — 2001-2006
• Solara — 2002-2008
• Tundra — 2000-2008
• Yaris — 2006-2008

Available Part Numbers

• 11-0001 — Weld-On MAF Sensor Flange, Denso Air Meter (2.75" OD)

Why Radium Engineering?

• ✔ Designed and manufactured in the USA
• ✔ CNC machined polished 6061-T6 billet aluminium — precision fit
• ✔ Pre-tapped M4 threads — no additional machining required
• ✔ Trusted by professional motorsport teams and serious enthusiasts worldwide
• ✔ Exclusively distributed in Australia by Coore

Genuine Radium Engineering product. Stocked in Sydney for fast Australian delivery. Designed for 2.75" OD pipe — can be modified for 2.5-3.0" pipes. Weld-on installation — professional fabrication recommended. MAF sensor not included.