Vibrant Performance Straight Reducer Silicone Tubing Coupler - 3 in to 3-1/4 in ID - 3 in Long - Black 4125CMDBU 0:1 AFR OBDII Output Lambda

0:1 AFR OBDII Output Lambda values from

This style vent also acts as an air intake using the helmet’s ventilation channels to enhance and maximize air exchange inside the helmet

Moderate exterior exhaust tone

The bobbin is molded from Dupont Rynite FR946 material which has incredible dielectric capabilities at high temperatures

Vibrant Performance Straight Reducer Silicone Tubing Coupler - 3 in to 3-1/4 in ID - 3 in Long - Black 4125CMDBU 0:1 AFR OBDII Output LambdaVibrant Performance Aramid Reinforced Silicone Transition Hose Couplers feature a smooth and effective transition from one inlet diameter size to another. This coupler is intended for use in applications where a reduction or increase in diameter is needed. Our Transition Hose couplers are commonly found off of turbo compressor housings, intercooler end tanks and charge pipe assemblies. Rated for temperatures ranging from 65 degreesF to 350 degreesF