Mishimoto 3.5 to 4 Inch Silicone Transition Coupler - Black night stick custom-fit design ensures precise coverage

custom-fit design ensures precise coverage of your vehicle's footwell

By carefully analyzing and understanding the air path to the engine and engine operation under a range of driving conditions

This complete kit includes all necessary components to replace worn or damaged window channels

it enhances your driving comfort and protects your vehicle’s interior from damage caused by moisture

Mishimoto 3.5 to 4 Inch Silicone Transition Coupler - Black night stick custom-fit design ensures precise coverageMishimoto has developed a silicone transition coupler that measures 3. 5in to 4in. Available in black, blue, and red. 100 percent silicone construction High heat and pressure tolerances Heat resistant embedded fibers The Mishimoto 3. 5 to 4 Inch Silicone Transition Coupler is designed to provide a reliable connection between different diameter pipes in your automotive air intake or intercooler system. Crafted from 100 percent silicone, this coupler