Review on 🔵 Spectre Performance 9776 Blue 4-inch Intake Coupler: Enhanced Airflow and Durability by Dustin Wright

Made from unreinforced synthetic rubber. Fairly high hardness. It is not amplified as one person's comment says. Its length is only 1.97 inches or two inches. This should work fine for my cold air line connection. It will be interesting to see if it can withstand the heat of the turbocharger side joint and if it doesn't squeeze out from under the clamp so much that it weakens.