{"product_id":"weistec-anti-surge-valve-system-m157-m278-non-suv-abc-s63-amg","title":"Weistec Anti Surge Valve System, M157 M278 Non-SUV \/ ABC (S63 AMG)","description":"\u003csection class=\"u-color-black x-product-description\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"o-wrapper\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e The Weistec ASV System adds a Weistec Anti Surge Valve (ASV) to the BiTurbo AMG M157 and M278 engines.  From the factory the M157 engine was never given any type of bypass valve.  With out a bypass valve, the turbochargers are subject to compressor surge when the throttle closes after hard acceleration.   Compressor surge can be damaging to turbochargers and generally should be prevented to help ensure the best performance from the turbochargers.  The Weistec ASV is operated by the engine vacuum, opening when the throttle closes allowing the \u003cspan data-mce-fragment=\"1\"\u003ecompressed air to be vented to the atmosphere instead of back flowing into the compressor housing and stalling the compressor wheel. The vented air produces the \"blow-off\" sound common on many modified turbocharged vehicles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"videoWrapper\" data-mce-fragment=\"1\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/NAdEzLxwBTA?enablejsapi=1\u0026amp;version=3\u0026amp;rel=0\u0026amp;controls=1\u0026amp;playerapiid=ytplayer\u0026amp;modestbranding=1\u0026amp;autohide=1;fs=1\u0026amp;\" width=\"862\" height=\"519\" data-gtm-yt-inspected-11=\"true\" id=\"302456665\" title=\"Weistec Engineering Anti-Surge Valve System M157 M278 M133 M275\/279\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/www.youtube.com\/embed\/NAdEzLxwBTA?enablejsapi=1\u0026amp;version=3\u0026amp;rel=0\u0026amp;controls=1\u0026amp;playerapiid=ytplayer\u0026amp;modestbranding=1\u0026amp;autohide=1;fs=1\u0026amp;\" frameborder=\"0\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThis system is a complete, bolt on system that can be installed with out any guess work or custom fabrication.  Weistec has engineered and manufactured many of the components of this system to ensure a simple and straight forward installation.\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 data-mce-fragment=\"1\"\u003eKEY FEATURES:\u003c\/h2\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003eRed Powder Coated Turbo Charge Pipes with built in injector bungs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003eWeistec Anti Surge Valve (Two ASV's on SUV's and ABC equipped vehicles)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003eWeistec Vacuum\/Boost Adapter\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003eHigh Quality Quick Disconnect Fittings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003eCompatible with Stock, W.3, and W.4 Turbochargers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003eAll hardware and gaskets are included\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"u-bg-gray-10 u-color-black x-related-products\" data-mce-fragment=\"1\"\u003e\n\u003ch1 class=\"related-products c-heading-indent u-color-black u-text-center u-text-extrabold u-text-uppercase\" data-mce-fragment=\"1\"\u003eRELATED\u003c\/h1\u003e\n\u003c\/section\u003e","brand":"Weistec","offers":[{"title":"Default Title","offer_id":40421262458983,"sku":"","price":2199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0561\/1716\/6183\/files\/m157_vta_1_640x427_808bc27f-d558-42c4-803e-b364216ed4db.jpg?v=1707694374","url":"https:\/\/www.rockfordspeed.com\/products\/weistec-anti-surge-valve-system-m157-m278-non-suv-abc-s63-amg","provider":"Rockford Speed","version":"1.0","type":"link"}