Vibrant Performance Straight Reducer Silicone Tubing Coupler - 4 in to 4-1/2 in ID - 3 in Long - Black Racing Seat Notched at each mounting location

Notched at each mounting location with socket-sized clearances for quick installation and removal

Adjusting the bump steer in your race car sometimes requires shimming up the rack

**Please Note** Although ACCEL still calls these U-Groove Plugs they do not groove the electrode

25" DiameterAbsolutely the most accurate way to trigger the ignition

1-5/8 in Male O-Ring to 1-1/2 in Hose Barb

Vibrant Performance Straight Reducer Silicone Tubing Coupler - 4 in to 4-1/2 in ID - 3 in Long - Black Racing Seat Notched at each mounting locationVibrant 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