Hooker HKR42107 Collector Adapter Kit 3in to 2.5in Tube

Hooker HKR42107 Collector Adapter Kit 3in to 2.5in Tube is listed by Motorstate as a Header Reducers for catalog matching by brand, part number, and product name. Use this source-backed listing when comparing Hooker components in the Header Reducers category. The manufacturer part reference is 42107HKR, while the Motorstate part number is HKR42107. Catalog description context: Collector Reducer - 3 in Inlet to 2.5 in ID Outlet - Band Bolt Clamp - Stainless - Natural - Kit. No vehicle compatibility is stated here unless it is present in separate fitment data.