Features: 1.Fitment: 2.5in donut gasket flange kit is fit for all custom Headers with 2 bolt 2.5in pipings, especially used on replacement for Acura Integra B?Series motor. 2.High Durability: Our gasket and flange adapter is made of premium metal material, high temperature resistance, high hardness, not easy to rust and break, can be used stably for a long time. 3.Function: Replace old and damaged, it plays a good connection role, strong sealing, good firmness, effectively reduce abnormal noise, improve driving comfort. 4.Size: The height of our gasket flange kit has a height of about 50mm / 2in after assembly, and the distance between the two holes is about 120mm / 4.7in. 5.Quality Replacement: Our gasket flange kit is manufactured in strict accordance with standard requirements, ensuring reliable quality and easy installation. Specification: Item Type: Exhaust Manifold Flange Kit Material: Metal Application: Replace worn and damaged, play a good connection role, strong sealing, good fixation, effectively reduce abnormal noise, improve driving comfort. Fitment: Fits all custom Headers with 2 bolt 2.5in pipings,especially used on replacement for Acura Integra B-Series motor in 94-01 , fit for Civic Si DOHC 99-00 , and fit for Delsol with the DOHC motor custom 2.5in collector JDM headers.