{"product_id":"high-flow-exhaust-manifold-and-up-pipe-kit","title":"High-Flow Exhaust Manifold and Up-Pipe Kit","description":"The PPE High-Flow Exhaust Manifold and Up-Pipe Kit is engineered to improve the flow characteristics of the GM 6.6L Duramax engine found in 2001-2004 federal and 2001 California models. The manifolds are cast from high-sil moly iron, providing a durable, high-flow foundation. The accompanying up-pipes are built from 11-gauge 304 stainless steel with a 2-inch outside diameter and feature internally sleeved, aircraft-grade bellows for improved longevity and exhaust efficiency.\n\nBy significantly reducing exhaust back-pressure, this kit aids in lowering exhaust gas temperatures (EGTs), enhancing turbo spool-up, and increasing overall engine power and fuel efficiency. The manifold includes pre-drilled and tapped 1\/8” NPT ports, simplifying the installation of an EGT sensor.\n\nInstallation requires specific hardware considerations. A PPE LB7 down pipe is mandatory for proper fitment, as the stock down pipe is not compatible with this kit. Users should be prepared for a complex installation process that may require specialized tools, such as extended allen keys or swivel-head ratchets, to manage the mounting hardware around the embossed manifold signatures.","brand":"PPE High","offers":[{"title":"Default Title","offer_id":52663323033912,"sku":"116111000","price":899.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687527787.jpg?v=1784325941","url":"https:\/\/store.motormia.co\/products\/high-flow-exhaust-manifold-and-up-pipe-kit","provider":"MOTORMIA","version":"1.0","type":"link"}