Feature 1Made of quality aluminum alloy and carbon, firm, corrosion resistant and durable. 2Stable performance, high accuracy and good reliability. 3The collector flange can be welded onto the catalytic convertor, test pipe or exhaust system. 4Easy to install, direct replacement for old or broken one. 5Built to meet standard specification, strictly follow factory quality control.Condition: 100% Brand NewItem Type: Collector Flange Material: Aluminum Alloy + CarbonColor: As picture shownDonut Gasket Inner Diameter: Approx. 6.35cm/2.5inOuter Diameter: Approx. 8.25cm/3.25in .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Collector Flange1 x Gasket