{"product_id":"plm-4-25-bell-mouth-header-downpipe-w-catalytic-converter","title":"PLM 4.25\" Bell Mouth Header Downpipe w\/ Catalytic Converter","description":"The PLM Power Driven K-Series Header Downpipe is engineered to enhance the performance of 9th Generation Honda Civic Si FG (2012-2015) and Acura ILX (2013-2015) models. Its large 4.25-inch bell mouth and 3-inch outlet are designed to optimize exhaust gas flow, contributing to increased power and responsiveness.\n\nConstructed from durable 18-gauge stainless steel, the header features precision CNC mandrel bent tubing and a CNC-machined flange with a thickness of 0.38 inches. It incorporates a high-flow, 200-cell metallic core catalytic converter to maintain emissions compliance while minimizing restriction. The downpipe also includes an O2 sensor adapter and a braided flex pipe section with an interlock liner for added durability and flexibility.\n\nThe package includes all necessary gaskets and hardware for a complete setup. The unit is a one-piece design for simpler installation. It also features bungs for both OEM O2 sensors and an additional bung for a wideband sensor.\n\nIt is specifically compatible with the 2012-2015 Honda Civic Si (9th Generation FG4) and the 2013-2015 Acura ILX.","brand":"PLM (Private Label Mfg.)","offers":[{"title":"Default Title","offer_id":52663281779000,"sku":"PLM-HFG4-HEADER-CAT","price":475.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687525599.jpg?v=1784325587","url":"https:\/\/store.motormia.co\/products\/plm-4-25-bell-mouth-header-downpipe-w-catalytic-converter","provider":"MOTORMIA","version":"1.0","type":"link"}