1x Graphoil Donut Gasket for 2.5" collector JDM Headers. Fits most custom Headers with 2 bolt - 2.5" pipings, especially used on B-Series motor in 94-01 Acura Integra, 99-00 Honda Civic Si DOHC, and Delsol with the DOHC motor custom 2.5" collector JDM headers (but 2.43" to be exact).
