@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@600;700;800;900&family=IBM+Plex+Mono:wght@400;500;600&family=IBM+Plex+Sans:wght@400;500;600&display=swap'); .p4x4{--paper:#EEF1F1;--panel:#fff;--ink:#171B1E;--ink-soft:#4A5159;--line:#D2D7D6;--petrol:#0F4C5C;--petrol-deep:#0A353F;--amber:#50bb20;--danger:#A8392D;background:var(--paper);color:var(--ink);font-family:"IBM Plex Sans",system-ui,sans-serif;font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;} .p4x4 *{box-sizing:border-box;} .p4x4 .wrap{max-width:880px;margin:0 auto;padding:0 22px;} .p4x4 .mast{background:var(--petrol-deep);color:#EAF0F0;border-bottom:4px solid var(--amber);} .p4x4 .mast .wrap{padding:38px 22px 34px;} .p4x4 .eyebrow{font-family:"IBM Plex Mono",monospace;font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:#8FB6BD;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;border-bottom:1px solid rgba(255,255,255,.14);padding-bottom:14px;} .p4x4 .title{font-family:"archivo",sans-serif;font-weight:900;letter-spacing:-.01em;line-height:1.02;text-transform:uppercase;font-size:clamp(18px,3vw,26px);margin:22px 0 10px;color:#EAF0F0;} .p4x4 .lede{font-size:clamp(16px,2.4vw,20px);color:#C7D7D9;max-width:50ch;margin:0;} .p4x4 .body{padding:48px 0 8px;} .p4x4 .sec{margin-bottom:48px;} .p4x4 .label{font-family:"IBM Plex Mono",monospace;font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--petrol);display:flex;align-items:center;gap:12px;margin-bottom:14px;} .p4x4 .label::before{content:"";width:26px;height:2px;background:var(--amber);flex:none;} .p4x4 h2{font-family:"archivo",sans-serif;font-weight:800;font-size:clamp(16px,2.4vw,20px);line-height:1.1;letter-spacing:-.01em;margin:0 0 16px;color:var(--ink);} .p4x4 p{margin:0 0 16px;} .p4x4 .intro{font-size:clamp(17px,2.4vw,19px);} .p4x4 .stats{display:grid;grid-template-columns:1fr;gap:14px;} @media(min-width:680px){.p4x4 .stats{grid-template-columns:repeat(3,1fr);}} .p4x4 .stat{background:var(--panel);border:1px solid var(--line);border-top:3px solid var(--petrol);padding:20px;} .p4x4 .fig{font-family:"archivo",sans-serif;font-weight:800;font-size:26px;line-height:1;color:var(--petrol);} .p4x4 .lab{font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);margin:9px 0 8px;} .p4x4 .stat p{font-size:14px;margin:0;} .p4x4 .panel{background:var(--panel);border:1px solid var(--line);border-top:4px solid var(--petrol);padding:24px 26px;} .p4x4 .panel h2{font-size:clamp(14px,2.2vw,18px);} .p4x4 .mono{font-family:"IBM Plex Mono",monospace;font-weight:600;color:var(--petrol);} .p4x4 .feat{list-style:none;margin:0;padding:0;display:grid;gap:1px;background:var(--line);border:1px solid var(--line);} .p4x4 .feat li{background:var(--panel);padding:13px 16px 13px 40px;position:relative;font-size:15.5px;} .p4x4 .feat li::before{content:"";position:absolute;left:16px;top:20px;width:9px;height:9px;background:var(--amber);transform:rotate(45deg);} .p4x4 .hose{background:var(--petrol-deep);color:#C7D7D9;padding:28px 30px;} .p4x4 .hose h2{color:#fff;}.p4x4 .hose p{margin:0;} .p4x4 a{color:var(--petrol);font-weight:600;text-underline-offset:3px;}.p4x4 .hose a{color:#fff;} .p4x4 .sign{font-family:"archivo",sans-serif;font-weight:800;text-transform:uppercase;letter-spacing:.02em;font-size:15px;padding:8px 0 24px;} .p4x4 .sign span{color:var(--petrol);} Pioneer 4x4Land Rover · Defender & Discovery DISCOVERY 2 Td5 Intake (1998-2004) Fluorosilicone (FSH) lined silicone hoses, engineered for the oil-laden air of a Land Rover intake and turbo system. Upgrade your Land Rover’s intake and turbo system with our fluorosilicone-lined silicone hose kit, engineered for the demands of hard-worked diesel and petrol engines on and off the road. Unlike standard silicone, every hose is built with a genuine Fluorosilicone (FVMQ/FSH) inner liner — the one upgrade that keeps an intake hose doing its job years down the line instead of softening and failing. Build specification FSH Fluorosilicone liner Genuine FVMQ inner liner resists fuels, oils, oil-laden intake air, OAT coolants and rust inhibitors. 4-Ply Construction Polyester-reinforced, 5.0mm wall, with the FVMQ liner bonded to the bore. Made to SAE J20 R4. -50—+180°C Working temp Stable from a frozen winter start to sustained boost-pipe and under-bonnet heat without hardening. The hero feature Why fluorosilicone (FSH) lined? Standard silicone handles heat and pressure well, but it doesn’t cope with oil. On an intake and turbo system the air is never clean — crankcase breather gases and turbo seals push a constant fine oil mist through the hoses every time the engine runs. Over time that oil soaks into ordinary silicone and swells it from the bore outward, acting like a plasticiser that makes the hose go soft and spongy. Once softened, it can no longer hold its shape under boost, so it begins to balloon and eventually splits or blowing off. The fluorosilicone (FVMQ) inner liner stops this at the source: the fluorine in the liner resists oil absorption, so the oil only ever contacts the FSH layer and never reaches the structural silicone wall behind it. The result is a hose that keeps its hardness, strength and pressure rating for the life of the vehicle, rather than degrading quietly from the inside out. Key features Genuine Fluorosilicone (FVMQ/FSH) inner liner — resists fuels, oils, OAT coolants and rust inhibitors Oil-resistant liner prevents the silicone softening, ballooning and splitting over time 4-ply polyester-reinforced construction, 5.0mm wall Continuous working temperature -50°C to +180°C Burst pressure well in excess of intake and turbo boost requirements Manufactured to SAE J20 R4 automotive standard Available in a range of colours (black liner) Direct-fit kit — a straightforward upgrade over tired OEM rubber What’s included Complete kit — ready to fit Fluorosilicone (FSH) lined silicone hoses — full kit for this application Stainless steel Mikalor clips with collars — supplied for every hose in the kit The Pioneer 4x4 difference Built for oil-laden air Whether you’re maintaining a daily-driven Defender or building a serious off-road Discovery, this kit is a durable, great-looking upgrade engineered to outlast the original rubber — and the fluorosilicone liner is the part that makes it last where ordinary silicone gives up. Not sure which kit suits your build? Get in touch and we’ll point you to the right one. Pioneer 4x4 — Precision Engineering
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