Exhaust Adapter, 3.5 Inch ID. to 4 Inch Outside Diameter, Alum.

MBRP Exhaust Exhaust Adapter, 3.5 Inch ID. to 4 Inch Outside Diameter, Alum.

Now you can hook up to your MBRP 4 Inch and 5 Inch hardware no matter what size your system. This adaptor is built from 100 Percent aluminized steel. Product Features:100 Percent Aluminized SteelLimited 3 Year Warranty