{"product_id":"stage-4-turbo-upgrade-m178","title":"Mercedes-Benz AMG GT\/GTC\/GTS\/GTR\/GTRPro Stage 4 Turbo Upgrade M178 | YPG Motorsport","description":"\u003cp\u003eStage 4 turbocharger upgrade — a full-billet precision-engineered turbo solution for the Mercedes-AMG GT\/GTC\/GTS\/GTR\/GTR Pro M178 4.0L twin-turbo V8. Built around Precision 58\/76 ball-bearing compressor wheels for the absolute maximum in spool response and sustained high-boost power, this is the end-of-the-line upgrade for serious builds targeting 1200 HP+.\u003c\/p\u003e\n\u003cp\u003eSupplied as a complete bolt-on kit with every fitting and line needed — everything from steel-braided oil and coolant lines to billet-aluminum adapters is included. Reuses the stock wastegate assembly for reliability. Compatible with stock downpipes or YPG race downpipes.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision 58\/76 ball-bearing turbos:\u003c\/strong\u003e Rapid spool and sustained high-boost capability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower target:\u003c\/strong\u003e 1200 HP+ with supporting modifications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCast aluminum compressor housing:\u003c\/strong\u003e Lightweight, heat-dissipating design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCast Inconel turbine housing:\u003c\/strong\u003e With internal wastegate assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete install kit:\u003c\/strong\u003e Steel-braided oil and coolant lines, billet adapters, all fittings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-inch inlet couplers:\u003c\/strong\u003e New clamps included, with reducer for stock airbox use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Complete bolt-on — reuses stock wastegate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDownpipe compatibility:\u003c\/strong\u003e Works with stock or YPG race downpipes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eShips worldwide. Sold by YPG Motorsport.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Shop\",\"item\":\"https:\/\/ypgmotorsport.com\/collections\/all\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Mercedes-Benz AMG GT\/GTC\/GTS\/GTR\/GTRPro Stage 4 Turbo Upgrade M178\",\"item\":\"https:\/\/ypgmotorsport.com\/products\/stage-4-turbo-upgrade-m178\"}]}\u003c\/script\u003e\n\u003cdiv class=\"product-faq\" style=\"margin-top:24px;border-top:1px solid #e0e0e0;padding-top:20px;\"\u003e\n\u003ch3 style=\"font-size:18px;font-weight:bold;margin-bottom:16px;\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdetails style=\"margin-bottom:12px;\"\u003e\u003csummary style=\"font-weight:600;cursor:pointer;padding:8px 0;\"\u003eHow much does the Mercedes-Benz AMG GT\/GTC\/GTS\/GTR\/GTRPro Stage 4 Tu cost?\u003c\/summary\u003e\u003cp style=\"padding:8px 0 8px 16px;color:#555;\"\u003eThe Mercedes-Benz AMG GT\/GTC\/GTS\/GTR\/GTRPro Stage 4 Tu is $9999.99 through YPG Motorsport with free worldwide shipping.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:12px;\"\u003e\u003csummary style=\"font-weight:600;cursor:pointer;padding:8px 0;\"\u003eDo you ship worldwide?\u003c\/summary\u003e\u003cp style=\"padding:8px 0 8px 16px;color:#555;\"\u003eYes. YPG Motorsport offers free worldwide shipping on all products., UAE, USA, UK, Europe, Australia — we ship everywhere.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:12px;\"\u003e\u003csummary style=\"font-weight:600;cursor:pointer;padding:8px 0;\"\u003eWhat is your return policy?\u003c\/summary\u003e\u003cp style=\"padding:8px 0 8px 16px;color:#555;\"\u003eContact YPG Motorsport directly for return and warranty information on this product.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"How much does the Mercedes-Benz AMG GT\/GTC\/GTS\/GTR\/GTRPro Stage 4 Tu cost?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The Mercedes-Benz AMG GT\/GTC\/GTS\/GTR\/GTRPro Stage 4 Tu is $9999.99 through YPG Motorsport with free worldwide shipping.\"}},{\"@type\":\"Question\",\"name\":\"Do you ship worldwide?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. YPG Motorsport offers free worldwide shipping on all products., UAE, USA, UK, Europe, Australia — we ship everywhere.\"}},{\"@type\":\"Question\",\"name\":\"What is your return policy?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Contact YPG Motorsport directly for return and warranty information on this product.\"}}]}\u003c\/script\u003e","brand":"YPG Motorsport","offers":[{"title":"Default Title","offer_id":53543149666651,"sku":null,"price":9999.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0805\/8611\/3371\/files\/image_ef136e0a-9b4f-4a63-8286-0cdb9f9385f1.jpg?v=1784376012","url":"https:\/\/reinhardtautohaus.com\/products\/stage-4-turbo-upgrade-m178","provider":"Reinhardt Autohaus","version":"1.0","type":"link"}