{"product_id":"4-2-1-race-header-1","title":"4-2-1 Race Header","description":"The K-Tuned 4-2-1 Race Header is engineered to enhance the performance of the 2006-2011 Honda Civic Si, specifically for vehicles equipped with the K20Z3 engine. This header utilizes a 4-2-1 Tri-Y design, which is known for optimizing power output across the RPM range, providing a balance of low-end torque and high-end horsepower.\n\nConstructed from durable 409 Series Steel, this header is built to withstand high temperatures and resist corrosion. It features robust CNC-cut 3\/8-inch thick flanges for a secure and leak-free seal, and a 2.5-inch outlet diameter designed for optimal exhaust flow. The design aims to provide good power gains and is offered at a competitive price point.\n\nFitment is specific to the 2006-2011 Honda Civic Si Sedan or Coupe models. However, minor customization to fit the exhaust may be necessary, and while it typically bolts up to most aftermarket exhaust systems, fitment cannot be universally guaranteed.","brand":"K Tuned","offers":[{"title":"Default Title","offer_id":52686532870456,"sku":"KBH-CSI-409","price":282.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/658280715.webp?v=1784874657","url":"https:\/\/store.motormia.co\/products\/4-2-1-race-header-1","provider":"MOTORMIA","version":"1.0","type":"link"}