{"product_id":"mercedes-amg-m157-forged-pistons","title":"Mercedes-AMG M157 Forged Pistons — 1,500HP+ Rated | 5.5L Twin-Turbo V8 | YPG Motorsport","description":"\u003ch2\u003eMercedes-AMG M157 Forged Pistons — 5.5L Twin-Turbo V8\u003c\/h2\u003e\n\n\u003cp\u003eCustom forged pistons for the Mercedes-AMG M157 5.5L twin-turbo V8 — purpose-built to handle extreme boost, timing, and cylinder pressures far beyond factory limits. The M157 is the second-generation AMG twin-turbo V8 that powered the E63, CLS63, G63, S63, SL63, ML63, GL63, and GLE63 before the M177 took over the platform.\u003c\/p\u003e\n\n\u003cp\u003eThe M157 is famously durable at stock power, but once pushed past 700+ HP with upgraded turbos, methanol\/E85 fuel, or aggressive tuning, factory cast pistons become the weak link. Our forged piston set delivers the strength needed for high-boost operation without the full cost of a complete forged internals kit.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e8x Forged Pistons\u003c\/strong\u003e — 4340 aircraft-quality forged aluminum, precision-machined to OEM bore specifications for the M157 5.5T V8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston Rings\u003c\/strong\u003e — Low-tension performance ring pack for improved sealing under boost and reduced friction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWrist Pins \u0026amp; Clips\u003c\/strong\u003e — Heavy-duty tool steel wrist pins rated for extreme cylinder pressures\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCeramic-Coated Tops\u003c\/strong\u003e — Thermal barrier coating reduces heat transfer to the piston crown, protecting against detonation at high boost levels. Standalone coating service (Swain Tech, Calico) runs $200–400 per set.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTeflon-Coated Skirts\u003c\/strong\u003e — Anti-friction coating reduces piston-to-wall contact friction, improving reliability under sustained high-boost operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory Compression Ratio\u003c\/strong\u003e — Maintains stock compression geometry for seamless integration with OEM or aftermarket ECU calibrations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1,500HP+ Rated\u003c\/strong\u003e — Engineered to withstand cylinder pressures generated by Stage 3+ turbo upgrades, methanol injection, and E85 race fuel\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIdeal For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStage 2–4 turbo builds producing 700–1,500+ HP\u003c\/li\u003e\n\u003cli\u003eMethanol \/ E85 race fuel applications\u003c\/li\u003e\n\u003cli\u003eBuilds where factory rods are still serviceable but pistons need upgrading\u003c\/li\u003e\n\u003cli\u003ePreventative upgrade before pushing aggressive boost and timing\u003c\/li\u003e\n\u003cli\u003eBudget-conscious builds that don't require a full forged rods \u0026amp; pistons kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMercedes-AMG E63 \/ E63 S (W212) — 2013–2016 (facelift)\u003c\/li\u003e\n\u003cli\u003eMercedes-AMG CLS63 \/ CLS63 S (W218) — 2013–2018\u003c\/li\u003e\n\u003cli\u003eMercedes-AMG G63 (W463) — 2013–2018 (pre-M177)\u003c\/li\u003e\n\u003cli\u003eMercedes-AMG S63 (W221) — 2011–2013 and S63 (W222) — 2014–2020\u003c\/li\u003e\n\u003cli\u003eMercedes-AMG CL63 (C216) — 2011–2014\u003c\/li\u003e\n\u003cli\u003eMercedes-AMG SL63 (R231) — 2013–2020\u003c\/li\u003e\n\u003cli\u003eMercedes-AMG ML63 (W166) — 2013–2015\u003c\/li\u003e\n\u003cli\u003eMercedes-AMG GL63 (X166) — 2013–2016\u003c\/li\u003e\n\u003cli\u003eMercedes-AMG GLE63 (W166) — 2016–2019 (pre-M177)\u003c\/li\u003e\n\u003cli\u003eMercedes-AMG GLS63 (X166) — 2017–2019 (pre-M177)\u003c\/li\u003e\n\u003cli\u003eEngine: M157 5.5L Twin-Turbo V8 (M157 DE55 AL)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy YPG Motorsport?\u003c\/h3\u003e\n\u003cp\u003eYPG Motorsport holds the \u003cstrong\u003eworld record for the first sub-10-second Mercedes-AMG C63 W205 quarter mile\u003c\/strong\u003e — 9.97 seconds at 828 WHP on the M177 platform. Our M157 forged piston spec — ceramic-coated crowns, Teflon-coated skirts — draws from the same engineering discipline we apply across the entire AMG twin-turbo V8 range. Every kit is sourced from CP-Carrillo or equivalent tier-1 forging houses and inspected before shipping.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eShips worldwide via FedEx International Priority from Kuwait.\u003c\/strong\u003e\u003c\/p\u003e","brand":"YPG Motorsport","offers":[{"title":"Default Title","offer_id":48664525668544,"sku":"YPG-M157-FORGED-PISTONS","price":2499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0084\/7288\/7360\/files\/07-12-18-5649_32612aba-fd32-4ef1-a9a4-7d19ebb6e12f.png?v=1785139010","url":"https:\/\/ypgmotorsport.com\/products\/mercedes-amg-m157-forged-pistons","provider":"YPG Motorsport","version":"1.0","type":"link"}