• Unleash the Power: BLOX Racing's DIY performance parts are a game - changer for auto enthusiasts! • High - Quality Build: This 2.25'/2.5' header collector flange, crafted from stainless steel, is perfect for building or replacing. • Precision Design: The 2.5' flange has round 17mm holes with a 120mm center. The 2.25' flange features oval 16x19mm holes with an 86mm center. Get your hands on these high - performance components now! You'll also need a gasket: PN BXFL - 00060 for the 2.5' header collector flange and PN BXFL - 00059 for the 2.25' one.

Use this header collector flange when you're building or upgrading your Honda's exhaust system. It's great for experienced fabricators and performance hobbyists who want to assemble high - performance components on their own. The 2.5' flange has round holes that are 17mm in diameter with a center of 120mm, while the 2.25' flange has oval holes measuring 16x19mm with a center of 86mm.