{"product_id":"s5806-new-mst-2021-bmw-g8x-m2-m3-m4-competition-s58-cold-air-intake-system-vj4asd","title":"S5806 NEW MST 2021+ BMW G8X M2 \/ M3 \/ M4 Competition S58 Cold Air Intake System","description":"\u003c!-- ============================================================\n     MST Performance BW-S5806 — Shopify Product Description HTML\n     Part Number: BW-S5806\n     Fitment: 2021+ BMW G80 M3 \/ G82 M4 Competition (S58 Engine)\n     ============================================================ --\u003e\n\u003cstyle\u003e\n  .mst-product-wrap {\n    font-family: Arial, Helvetica, sans-serif;\n    color: #1a1a1a;\n    max-width: 900px;\n    margin: 0 auto;\n    line-height: 1.7;\n  }\n\n  \/* ---- Hero Banner ---- *\/\n  .mst-hero {\n    background: #111;\n    color: #fff;\n    padding: 36px 32px;\n    border-radius: 4px;\n    margin-bottom: 32px;\n    text-align: center;\n  }\n  .mst-hero .brand-tag {\n    font-size: 12px;\n    letter-spacing: 3px;\n    text-transform: uppercase;\n    color: #cc0000;\n    margin-bottom: 8px;\n  }\n  .mst-hero h1 {\n    font-size: 26px;\n    font-weight: 800;\n    margin: 0 0 8px;\n    text-transform: uppercase;\n    letter-spacing: 1px;\n  }\n  .mst-hero .sku-badge {\n    display: inline-block;\n    background: #cc0000;\n    color: #fff;\n    font-size: 13px;\n    font-weight: 700;\n    padding: 4px 14px;\n    border-radius: 2px;\n    letter-spacing: 1px;\n    margin-top: 6px;\n  }\n  .mst-hero .subtitle {\n    font-size: 15px;\n    color: #ccc;\n    margin-top: 12px;\n  }\n\n  \/* ---- Section Headings ---- *\/\n  .mst-section-title {\n    font-size: 18px;\n    font-weight: 800;\n    text-transform: uppercase;\n    letter-spacing: 1px;\n    border-left: 4px solid #cc0000;\n    padding-left: 12px;\n    margin: 36px 0 16px;\n    color: #111;\n  }\n\n  \/* ---- Overview paragraph ---- *\/\n  .mst-overview p {\n    font-size: 15px;\n    margin-bottom: 14px;\n  }\n\n  \/* ---- Upgrade Callout ---- *\/\n  .mst-upgrade-callout {\n    background: #f5f5f5;\n    border-left: 5px solid #cc0000;\n    padding: 20px 24px;\n    border-radius: 3px;\n    margin: 24px 0;\n    font-size: 15px;\n  }\n  .mst-upgrade-callout strong {\n    display: block;\n    font-size: 16px;\n    margin-bottom: 8px;\n    color: #cc0000;\n    text-transform: uppercase;\n    letter-spacing: 0.5px;\n  }\n\n  \/* ---- Dyno Stats Grid ---- *\/\n  .mst-dyno-stats {\n    display: flex;\n    flex-wrap: wrap;\n    gap: 16px;\n    margin: 24px 0;\n  }\n  .mst-stat-box {\n    flex: 1 1 180px;\n    background: #111;\n    color: #fff;\n    text-align: center;\n    padding: 20px 16px;\n    border-radius: 4px;\n  }\n  .mst-stat-box .stat-value {\n    font-size: 32px;\n    font-weight: 900;\n    color: #cc0000;\n    line-height: 1;\n  }\n  .mst-stat-box .stat-label {\n    font-size: 12px;\n    text-transform: uppercase;\n    letter-spacing: 1px;\n    margin-top: 6px;\n    color: #ccc;\n  }\n\n  \/* ---- Dyno Chart Image ---- *\/\n  .mst-dyno-chart-wrap {\n    text-align: center;\n    margin: 24px 0;\n  }\n  .mst-dyno-chart-wrap img {\n    max-width: 100%;\n    border-radius: 4px;\n    border: 1px solid #ddd;\n  }\n  .mst-dyno-chart-wrap .caption {\n    font-size: 13px;\n    color: #666;\n    margin-top: 8px;\n    font-style: italic;\n  }\n\n  \/* ---- Photo Gallery ---- *\/\n  .mst-gallery {\n    display: grid;\n    grid-template-columns: 1fr 1fr;\n    gap: 12px;\n    margin: 24px 0;\n  }\n  .mst-gallery img {\n    width: 100%;\n    border-radius: 4px;\n    display: block;\n  }\n\n  \/* ---- Features List ---- *\/\n  .mst-features-list {\n    list-style: none;\n    padding: 0;\n    margin: 0 0 24px;\n  }\n  .mst-features-list li {\n    padding: 10px 0 10px 28px;\n    border-bottom: 1px solid #eee;\n    font-size: 15px;\n    position: relative;\n  }\n  .mst-features-list li::before {\n    content: \"▶\";\n    color: #cc0000;\n    font-size: 10px;\n    position: absolute;\n    left: 4px;\n    top: 13px;\n  }\n\n  \/* ---- Comparison Table ---- *\/\n  .mst-compare-table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14px;\n    margin: 16px 0 28px;\n  }\n  .mst-compare-table thead tr {\n    background: #111;\n    color: #fff;\n  }\n  .mst-compare-table thead th {\n    padding: 12px 14px;\n    text-align: left;\n    font-weight: 700;\n    text-transform: uppercase;\n    letter-spacing: 0.5px;\n  }\n  .mst-compare-table thead th.highlight {\n    background: #cc0000;\n  }\n  .mst-compare-table tbody tr:nth-child(even) {\n    background: #f9f9f9;\n  }\n  .mst-compare-table tbody td {\n    padding: 11px 14px;\n    border-bottom: 1px solid #e5e5e5;\n    vertical-align: middle;\n  }\n  .mst-compare-table .check-yes {\n    color: #2a9d2a;\n    font-weight: 700;\n  }\n  .mst-compare-table .check-no {\n    color: #999;\n  }\n  .mst-compare-table .highlight-col {\n    background: #fff5f5;\n    font-weight: 600;\n  }\n\n  \/* ---- Fitment Box ---- *\/\n  .mst-fitment-box {\n    background: #f0f0f0;\n    border-radius: 4px;\n    padding: 20px 24px;\n    margin: 16px 0 28px;\n  }\n  .mst-fitment-box ul {\n    margin: 8px 0 0;\n    padding-left: 20px;\n  }\n  .mst-fitment-box ul li {\n    font-size: 15px;\n    padding: 4px 0;\n  }\n\n  \/* ---- Notice Banner ---- *\/\n  .mst-notice {\n    background: #fffbe6;\n    border: 1px solid #f0c040;\n    border-radius: 4px;\n    padding: 14px 18px;\n    font-size: 14px;\n    margin: 20px 0;\n    color: #6b5900;\n  }\n  .mst-notice strong {\n    color: #5a4800;\n  }\n\n  \/* ---- Responsive ---- *\/\n  @media (max-width: 600px) {\n    .mst-gallery {\n      grid-template-columns: 1fr;\n    }\n    .mst-dyno-stats {\n      flex-direction: column;\n    }\n    .mst-hero h1 {\n      font-size: 20px;\n    }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"mst-product-wrap\"\u003e\n\u003c!-- ===== HERO ===== --\u003e\n\u003cdiv class=\"mst-hero\"\u003e\n\u003cdiv class=\"brand-tag\"\u003eMST Performance\u003c\/div\u003e\n\u003ch1\u003eDual-Sided High-Flow Intake System\u003cbr\u003efor BMW S58 — G80 M3 \/ G82 M4\u003c\/h1\u003e\n\u003cspan class=\"sku-badge\"\u003eBW-S5806\u003c\/span\u003e\n\u003cp class=\"subtitle\"\u003eEngineered for High-Power Builds • Dyno-Proven Top-End Gains • Dual Filter Design\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- ===== OVERVIEW ===== --\u003e\n\u003cdiv class=\"mst-overview\"\u003e\n\u003ch2 class=\"mst-section-title\"\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eMST Performance BW-S5806\u003c\/strong\u003e is the next evolution of MST's intake lineup for the BMW S58 platform, designed specifically for enthusiasts and tuners pushing their G80 M3 or G82 M4 Competition into high-power territory. Building on the proven foundation of the single-sided \u003cstrong\u003eBW-S5802\u003c\/strong\u003e, the BW-S5806 introduces a \u003cstrong\u003edual-sided, dual-filter configuration\u003c\/strong\u003e that dramatically increases airflow capacity at elevated RPM, exactly where high-power builds demand it most.\u003c\/p\u003e\n\u003cp\u003eWhile the BW-S5802 remains an excellent choice for stock or mildly modified setups, the BW-S5806 is purpose-built for Stage 2+ tunes, upgraded turbos, and any build targeting serious top-end power. The results speak for themselves: on a vehicle already running a Stage 2 tune on 98 RON fuel, a simple swap from the BW-S5802 to the BW-S5806, with no other tuning changes, yielded \u003cstrong\u003enearly +20 WHP at peak\u003c\/strong\u003e and a staggering \u003cstrong\u003e+59 WHP at 6,300 RPM\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- ===== UPGRADE CALLOUT ===== --\u003e\n\u003cdiv class=\"mst-upgrade-callout\"\u003e\n\u003cstrong\u003eUpgrade from BW-S5802 → BW-S5806\u003c\/strong\u003e The test vehicle was running a Stage 2 tune on 98 RON fuel, producing 639 WHP with the BW-S5802 installed. After fitting the BW-S5806 — with \u003cem\u003ezero tuning changes\u003c\/em\u003e — peak power climbed to 656 WHP. More critically, after 4,500 RPM the gap between the two intakes widens significantly, reaching \u003cstrong\u003e+59 WHP and +67 Nm at 6,300 RPM\u003c\/strong\u003e. If your build is pushing past 600 WHP or targeting maximum top-end performance, the BW-S5806 is the clear choice.\u003c\/div\u003e\n\u003c!-- ===== DYNO STATS ===== --\u003e\n\u003ch2 class=\"mst-section-title\"\u003eDyno Results — BW-S5806 vs BW-S5802\u003c\/h2\u003e\n\u003cdiv class=\"mst-dyno-stats\"\u003e\n\u003cdiv class=\"mst-stat-box\"\u003e\n\u003cdiv class=\"stat-value\"\u003e+20\u003c\/div\u003e\n\u003cdiv class=\"stat-label\"\u003eWHP Peak Gain\u003cbr\u003e(same tune)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mst-stat-box\"\u003e\n\u003cdiv class=\"stat-value\"\u003e+59\u003c\/div\u003e\n\u003cdiv class=\"stat-label\"\u003eWHP at 6,300 RPM\u003cbr\u003evs BW-S5802\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mst-stat-box\"\u003e\n\u003cdiv class=\"stat-value\"\u003e+67\u003c\/div\u003e\n\u003cdiv class=\"stat-label\"\u003eNm at 6,300 RPM\u003cbr\u003evs BW-S5802\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mst-stat-box\"\u003e\n\u003cdiv class=\"stat-value\"\u003e656\u003c\/div\u003e\n\u003cdiv class=\"stat-label\"\u003eWHP Peak Power\u003cbr\u003e(Stage 2, 98 RON)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ===== FEATURES ===== --\u003e\n\u003ch2 class=\"mst-section-title\"\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"mst-features-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-sided, dual-filter design\u003c\/strong\u003e — maximises airflow volume for both turbos on the S58 engine simultaneously\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignificant top-end power gains\u003c\/strong\u003e — power advantage over BW-S5802 increases progressively above 4,500 RPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDyno-proven performance\u003c\/strong\u003e — tested on Dynojet dynamometer by MST Performance with published results\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal for high-power builds\u003c\/strong\u003e — recommended for Stage 2+ tunes, upgraded turbos, and builds targeting 600+ WHP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-flow MST performance filter\u003c\/strong\u003e — washable and reusable, engineered for maximum filtration efficiency and flow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect bolt-on fitment\u003c\/strong\u003e — no cutting, drilling, or permanent modifications required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium construction\u003c\/strong\u003e — durable intake pipe with precision-machined couplers and clamps included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMST Performance quality\u003c\/strong\u003e — designed, tested, and backed by one of the leading intake specialists in the industry\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- ===== COMPARISON TABLE ===== --\u003e\n\u003ch2 class=\"mst-section-title\"\u003eBW-S5806 vs BW-S5802 — Which Is Right for You?\u003c\/h2\u003e\n\u003ctable class=\"mst-compare-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eBW-S5802 (Previous)\u003c\/th\u003e\n\u003cth class=\"highlight\"\u003eBW-S5806 (New)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Configuration\u003c\/td\u003e\n\u003ctd\u003eSingle-sided, single filter\u003c\/td\u003e\n\u003ctd class=\"highlight-col\"\u003eDual-sided, dual filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak Power (Stage 2, 98 RON)\u003c\/td\u003e\n\u003ctd\u003e639 WHP\u003c\/td\u003e\n\u003ctd class=\"highlight-col\"\u003e656 WHP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower at 6,300 RPM\u003c\/td\u003e\n\u003ctd\u003e596 WHP\u003c\/td\u003e\n\u003ctd class=\"highlight-col\"\u003e655 WHP (+59 WHP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTorque at 6,300 RPM\u003c\/td\u003e\n\u003ctd\u003e674 Nm\u003c\/td\u003e\n\u003ctd class=\"highlight-col\"\u003e741 Nm (+67 Nm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow-End Power (below 4,500 RPM)\u003c\/td\u003e\n\u003ctd class=\"check-yes\"\u003eSlightly stronger\u003c\/td\u003e\n\u003ctd class=\"highlight-col\"\u003eComparable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTop-End Power (above 4,500 RPM)\u003c\/td\u003e\n\u003ctd class=\"check-no\"\u003eGood\u003c\/td\u003e\n\u003ctd class=\"highlight-col check-yes\"\u003eSignificantly stronger\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Power Level\u003c\/td\u003e\n\u003ctd\u003eStock – Stage 2\u003c\/td\u003e\n\u003ctd class=\"highlight-col\"\u003eStage 2+ \/ High Power Builds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003eDaily-driven \/ street-focused builds\u003c\/td\u003e\n\u003ctd class=\"highlight-col\"\u003eHigh-power \/ track-focused builds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv class=\"mst-notice\"\u003e\n\u003cstrong\u003eNote:\u003c\/strong\u003e The BW-S5806 may produce slightly less low-end power compared to the single-sided BW-S5802 below approximately 4,500 RPM. For primarily street-driven vehicles at stock or mild Stage 1 power levels, the \u003ca href=\"\/products\/mst-2021-g80-m3-g82-m4-competition-s58-intake\"\u003eBW-S5802\u003c\/a\u003e remains an excellent option. The BW-S5806 is specifically optimised for high-power setups where top-end airflow is the priority.\u003c\/div\u003e\n\u003c!-- ===== FITMENT ===== --\u003e\n\u003ch2 class=\"mst-section-title\"\u003eFitment\u003c\/h2\u003e\n\u003cdiv class=\"mst-fitment-box\"\u003e\n\u003cul\u003e\n\u003cli\u003e2021+ BMW G80 M3 Competition (S58 3.0L Twin-Turbo)\u003c\/li\u003e\n\u003cli\u003e2021+ BMW G82 M4 Competition (S58 3.0L Twin-Turbo)\u003c\/li\u003e\n\u003cli\u003e2021+ BMW G83 M4 Competition Convertible (S58 3.0L Twin-Turbo)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- ===== WHAT'S INCLUDED ===== --\u003e\n\u003ch2 class=\"mst-section-title\"\u003eWhat's Included\u003c\/h2\u003e\n\u003cul class=\"mst-features-list\"\u003e\n\u003cli\u003eMST BW-S5806 Dual Intake Pipe Assembly\u003c\/li\u003e\n\u003cli\u003e2x MST High-Flow Performance Air Filters\u003c\/li\u003e\n\u003cli\u003eAll necessary couplers, clamps, and hardware for installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- ===== PART NUMBER ===== --\u003e\n\u003ch2 class=\"mst-section-title\"\u003ePart Information\u003c\/h2\u003e\n\u003ctable class=\"mst-compare-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eField\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eBW-S5806\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eMST Performance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eCold Air Intake System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eBMW S58 Engine (G80 M3 \/ G82 M4 Competition)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrevious Version\u003c\/td\u003e\n\u003ctd\u003eBW-S5802 (single-sided)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- End MST BW-S5806 Product Description --\u003e","brand":"MST","offers":[{"title":"Default Title","offer_id":52645302567192,"sku":"BW-S5806","price":1773.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0998\/4514\/4856\/files\/jbbc1y8g9upi_a91cf030-8cdb-4a26-bcd8-59e37dc47be3.jpg?v=1789035999","url":"https:\/\/driveforges.com\/products\/s5806-new-mst-2021-bmw-g8x-m2-m3-m4-competition-s58-cold-air-intake-system-vj4asd","provider":"Drive Forge","version":"1.0","type":"link"}