{"product_id":"s55-stage-2","title":"S55 Stage 2","description":"\u003cp\u003eThe S55's twin-scroll turbos have serious potential, but BMW's conservative factory tune leaves 100+ horsepower trapped in the ECU. Stage 2 unleashes your M3\/M4's full fury with aggressive mapping that transforms boost response and power delivery across the entire rev range.\u003c\/p\u003e\n\n\u003ch3\u003ePerformance Gains\u003c\/h3\u003e\n\u003cp\u003eStage 2 tuning rewrites the S55's boost strategy entirely. Peak boost climbs from factory 18.5 PSI to 22-24 PSI, with extended high-boost zones that maintain power through redline. The twin-scroll turbos spool harder and hold boost longer, eliminating the mid-range dip that plagues stock S55s. Throttle response sharpens dramatically — the engine now reacts like the twin-turbo monster BMW designed it to be. Expect transformed acceleration with power delivery that pulls relentlessly from 3,000 RPM to redline.\u003c\/p\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eS55 (2014-2021): F80 M3, F82\/F83 M4, F87 M2 Competition\u003c\/p\u003e\n\n\u003ch3\u003eInstallation \u0026amp; Supporting Mods\u003c\/h3\u003e\n\u003cp\u003eStage 2 requires a quality intake and downpipes to handle the increased airflow and exhaust volume. The tune is delivered via our proprietary flash tool — simple plug-and-play installation takes 15 minutes in your driveway. We include detailed install videos and provide direct text support throughout the process. Need help planning your build or stuck mid-install? Text us at 813.252.1025 — we will walk you through it.\u003c\/p\u003e\n\n\u003ch3\u003eShipping\u003c\/h3\u003e\n\u003cp\u003eFree shipping to the lower 48 states. International shipping available — contact us for a quote.\u003c\/p\u003e","brand":"BimmerHausPerformance","offers":[{"title":"I will send in my core for you to use","offer_id":50596958601273,"sku":"BHP-STG2-S55","price":5033.0,"currency_code":"CAD","in_stock":true},{"title":"No Core (I will keep or send my turbo in later for credit)","offer_id":50596958634041,"sku":"BHP-STG2-S55","price":6113.0,"currency_code":"CAD","in_stock":true}],"url":"https:\/\/islandracewerks.com\/en-ca\/products\/s55-stage-2","provider":"Island Racewerks","version":"1.0","type":"link"}