Vibrant Performance Straight Reducer Silicone Tubing Coupler - 4 to 5 in ID - 3 in Long - Black Pro-Blend not a better measurement of

not a better measurement of your exact exhaust gas temperature available anywhere

OEM / Edelbrock RPM

568 in Knurl

Too much fuel pressure for a given needle and seat assembly may cause flooding or driveability problems

810" outer diameter while reducing the outer diameter of the valve guide to

Vibrant Performance Straight Reducer Silicone Tubing Coupler - 4 to 5 in ID - 3 in Long - Black Pro-Blend not a better measurement ofVibrant 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