{"product_id":"echappement-a-valves-porsche-991-2-pse","title":"Valved Exhaust - 991-2 - Porsche 911 (991-2 PSE)","description":"\u003cp\u003eThis is not just an exhaust; it's a new way of experiencing sound. Designed specifically for 991.2 owners with the PSE (Porsche Sport Exhaust) option who find the stock system too restrictive, this system finally unleashes the full potential of your engine.\u003c\/p\u003e\n\u003cp\u003e To design this system, we started from the beginning to understand its limitations:\u003cul\u003e\n\n\u003cli\u003e\u003cb\u003eThe Original \"Problem\":\u003c\/b\u003e The original part has two inlets on each side. In \"valves closed\" mode, the gases are forced to pass through a duct of barely 38 mm which leads to a tube... that is blocked! The gases must then make their way through a perforated metal plate.\u003c\/li\u003e\n\n\u003cli\u003e\u003cb\u003eThe Role of Original Valves:\u003c\/b\u003e On the PSE, the valves serve less to generate a sound than to offer an additional gas extraction capacity at high engine speed (they open, for example, at 5000 rpm when stopped).\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e The secret lies in a perfect mastery of diameter differences. This unique design allows us to achieve two objectives:\u003c\/p\u003e\n\u003col start=\"1\"\u003e\n\n\u003cli\u003e\u003cb\u003eClosed Valves:\u003c\/b\u003e You retain a civilized and discreet sound, equivalent to the original PSE in closed mode (95 dB under acceleration), without any resonance or buzzing.\u003c\/li\u003e\n\n\u003cli\u003e\u003cb\u003eOpen Valves:\u003c\/b\u003e The gas flow is released. You get a powerful, deep and aggressive sound (98 dB), worthy of a Flat 6.\u003c\/li\u003e\n\n\n\u003c\/ol\u003e\n\u003cp\u003e You will of course retain the use of your original PSE \u003cb\u003eswitch\u003c\/b\u003e to switch between the two modes.\u003c\/p\u003e\n\u003ch3\u003e Your Benefits at a Glance\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003e\u003cb\u003eTrue Bi-modality:\u003c\/b\u003e Keep the comfort of the original with valves closed, and unleash the fury of the engine with valves open.\u003c\/li\u003e\n\n\u003cli\u003e\u003cb\u003ePure Sound:\u003c\/b\u003e A more powerful (+3 dB) and deeper sound, without a silencer to stifle the gas flow.\u003c\/li\u003e\n\n\u003cli\u003e\u003cb\u003eOptimized Engineering:\u003c\/b\u003e Designed to correct flow defects in the original system.\u003c\/li\u003e\n\n\u003cli\u003e\u003cb\u003ePerfect Compatibility:\u003c\/b\u003e Fits exclusively on 991.2 models equipped with the original PSE.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003e Proof by Sound: Comparison (Decibels)\u003c\/h3\u003e\n\u003cp\u003e The numbers speak for themselves. Note how our system, with valves closed, adjusts to the original sport mode (valves open), offering you total versatility.\u003c\/p\u003e\n\u003ctable\u003e\n\n\u003cthead\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e \u003cstrong\u003eMeasurement Scenario\u003c\/strong\u003e\n\u003c\/td\u003e\n\n\u003ctd\u003e \u003cstrong\u003ePSE Origin (Valves Closed)\u003c\/strong\u003e\n\u003c\/td\u003e\n\n\u003ctd\u003e \u003cstrong\u003ePSE Origin (Open Valves)\u003c\/strong\u003e\n\u003c\/td\u003e\n\n\u003ctd\u003e \u003cstrong\u003eOur Exhaust (Valves Closed)\u003c\/strong\u003e\n\u003c\/td\u003e\n\n\u003ctd\u003e \u003cstrong\u003eOur Exhaust (Open Valves)\u003c\/strong\u003e\n\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/thead\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e Slow motion\u003c\/td\u003e\n\n\u003ctd\u003e 71 dB\u003c\/td\u003e\n\n\u003ctd\u003e 72 dB\u003c\/td\u003e\n\n\u003ctd\u003e \u003cb\u003e72 dB\u003c\/b\u003e\n\u003c\/td\u003e\n\n\u003ctd\u003e \u003cb\u003e74 dB\u003c\/b\u003e\n\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e 4000 rpm (Stab.)\u003c\/td\u003e\n\n\u003ctd\u003e 90 dB\u003c\/td\u003e\n\n\u003ctd\u003e 92 dB\u003c\/td\u003e\n\n\u003ctd\u003e \u003cb\u003e92 dB\u003c\/b\u003e\n\u003c\/td\u003e\n\n\u003ctd\u003e \u003cb\u003e94 dB\u003c\/b\u003e\n\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e Acceleration\u003c\/td\u003e\n\n\u003ctd\u003e 91 dB\u003c\/td\u003e\n\n\u003ctd\u003e 95 dB\u003c\/td\u003e\n\n\u003ctd\u003e \u003cb\u003e95 dB\u003c\/b\u003e\n\u003c\/td\u003e\n\n\u003ctd\u003e \u003cb\u003e98 dB\u003c\/b\u003e\n\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e","brand":"Scart","offers":[{"title":"Default Title","offer_id":62518923067741,"sku":null,"price":3744.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0890\/5041\/5453\/files\/cc79d954b85d41147bb90bebc56cfc2b.jpg?v=1775739947","url":"https:\/\/scart.com\/en-us\/products\/echappement-a-valves-porsche-991-2-pse","provider":"Scart Exhaust","version":"1.0","type":"link"}