{"product_id":"b5-s4-rs4-log-manifolds","title":"B5 S4\/RS4 Log Manifolds","description":"High-Flow Stock Placement Log Manifolds – Audi B5 S4\u003cbr\u003eDesigned to outperform and outlast, these high-flow log manifolds are the upgrade your B5 S4 deserves. Constructed from schedule 10 304 stainless steel, they are meticulously welded and back-purged to ensure a flawless interior and maximum durability—built to outlive the car.\u003cbr\u003e\u003cbr\u003eUnlike other log manifolds that rely on poor lighting, sandblasting, or distant photos to hide imperfections, these manifolds are built right, with zero compromises. The attention to detail and proper welding techniques eliminate the reputation of low-quality log manifolds flooding the market.\u003cbr\u003e\u003cbr\u003eWhy Choose These Manifolds?\u003cbr\u003eNo corners cut, no shortcuts taken\u003cbr\u003eA true performance upgrade over restrictive stock manifolds\u003cbr\u003ePerfect for hybrid K04 setups or big-power builds\u003cbr\u003e\u003cbr\u003e Key points about back purging stainless steel:\u003cbr\u003e\u003cbr\u003eOxidation prevention:\u003cbr\u003eThe primary reason for back purging is to prevent the inside of the weld from oxidizing, which can significantly reduce the corrosion resistance of stainless steel. \u003cbr\u003e\u003cbr\u003eMaintaining weld integrity:\u003cbr\u003e\u003cbr\u003eBy shielding the backside of the weld with inert gas, the weld quality is improved, leading to a stronger and more reliable joint. \u003cbr\u003e\u003cbr\u003eApplications:\u003cbr\u003e\u003cbr\u003eWithout back purging, the weld can develop a rough, porous surface on the inside due to oxidation, often described as \"sugaring\". This can easily break off when used in high temperature scenarios like manifolds, these can then pass through the manifold at high speeds and damage crucial components. \u003cbr\u003e\u003cbr\u003eMade to order with a lead time of 2-4 weeks\u003cbr\u003e\u003cbr\u003eIf you're serious about performance and quality, these manifolds speak for themselves.\u003cbr\u003e\u003cbr\u003eLifetime warranty for the original buyer\u003cbr\u003e\u003cbr\u003eAs theses are made to order there is option for cancellation once payment has been made.","brand":"Lostinfab","offers":[{"title":"Default Title","offer_id":58556933964124,"sku":"SKU-111833607","price":875.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1043\/8891\/9644\/files\/IMG_0347.jpg?v=1785999279","url":"https:\/\/www.lostinfab.co.uk\/products\/b5-s4-rs4-log-manifolds","provider":"Lostinfab","version":"1.0","type":"link"}