Proflow's billet aluminium flex fuel sensor adapter splits fuel flow into a bypass valve parallel to the sensor inlet. As the flex fuel sensor is directly inline with the fuel flow path, it will read the ethanol content of the incoming fuel at high and low engine speeds. Traditionally this could be done using a variety of fittings and Y-adapters. However, this compact adapter simplifies plumbing and is much less complicated to install, less restrictive, and will fit many GM flex fuel sensors such as GM # 13577429 (in-built mounting solution), 13577379 and 13577394 (both use its own mounting tabs).

-10AN ORB outlets deliver adequate flow volume for the most extreme of fuel systems and can be stepped down in size using reducer fittings (sold seperately). A 4-piece billet AL6061-T6 design is black anodised and uses FKM o-rings for long lasting performance.

Features:

• 4-piece billet aluminium design 
• Large -10AN ORB flow rate (5/8")
• Provides less fuel line flow restriction 
• Can be used in feed or return lines
• Double Viton o-rings 
• Reduces fittings and leakage points (reduces costs)
• Simple to install
• Integrated mounting bracket solution for GM 13577429

Note: Recommended to be plumbed before the fuel rail for the most accurate readings.