The Diamond Eye 4" ID to 5" ID exhaust adapter is a purpose-made transition piece allowing a 4.00" inner-diameter tube to fit inside or mate to a 5.00" inlet. Built for exhaust fabrication and repairs, it provides a straightforward connection option for installers and builders working with different tube sizes, enabling a secure join between mismatched exhaust sections.
Diamond Eye ADAPTER 4in ID (4in TB FITS INSIDE) TO 5in ID (FITS OVER A 5in TB) AL