CXRacing Aluminum Y Pipe, Dual 3" to Single 4", For Air Intake or Intercooler Piping.Two 3" Pipes Merge to Single 4". Application:Dual Air Intake System.Twin Turbo Intercooler Piping.Product Being Sold:One Y Pipe.This is CXRacing's Newest Products for the Application Stated Above. All Parts Are Developed from Ground Up in Our R&D Center in USA, Designed and Built for Improved Performance Gains, with Excellent Fitment and Easy Installation.Product Info and Spec:- Mandrel Bent /Welded Aluminum Y Pipe, Each End is Rolled.Item included:- Y Pipe x1.