Vibrant Performance Straight Reducer Silicone Tubing Coupler - 4 in to 3-1/2 in ID - 3 in Long - Black JKU-GMR25 The suede covered rim is

The suede covered rim is anatomically molded for optimum grip

1965-1966 Ford Custom Base CID 289 Naturally Aspirated GAS

Get better performance from a simple manifold replacement kit

Chevrolet Silverado & GMC Sierra 3500 HD: 2001 - 2019

it features internal processing to read data from OBDII and most aftermarket ECU and EFI systems

Vibrant Performance Straight Reducer Silicone Tubing Coupler - 4 in to 3-1/2 in ID - 3 in Long - Black JKU-GMR25 The suede covered rim isVibrant 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