Vibrant Performance makes it easy to complete all of your custom air induction projects with their complete lineup of top quality reinforced silicone connectors. These Vibrant silicone 90 degree bends feature hand wrapped 4-ply polyester reinforced construction, which allows these couplers to withstand high temperatures and high boost conditions without swelling or bursting like inferior rubber connectors. Vibrant's 4 ply silicone 45 degree elbows feature 6" legs and are rated for temperatures from -65F up to 350F.