{"product_id":"tune-g16-m850i","title":"BMW G16 M850i (N63TU3)","description":"\u003cp\u003e\u003cstrong\u003eLogged, verified, revised. Documented in writing. Yours to keep.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA custom bootmod3 calibration for the G16 M850i Gran Coupe (N63TU3) — built from datalogs on your car, not a map off a shelf. The G16 is the four-door Gran Coupe — the same N63TU3 twin-turbo V8 as the two-door 8-Series, but in a longer, heavier body that asks for strong, accessible mid-range over peak output. We start from what your engine is actually doing in fuel trims, timing, knock, and load, and revise against the next log until the math and the data agree.\u003c\/p\u003e\n\u003cp\u003eWith four doors and the extra mass, the calibration leans toward smooth, usable torque you'll feel most around town and on the highway.\u003c\/p\u003e\n\u003ch3\u003eHow we approach it\u003c\/h3\u003e\n\u003cp\u003eMath first, datalogs second, marketing claims a distant last. We don't publish dyno numbers we can't reproduce; we tune to what your specific car does on the fuel you actually buy.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/pages\/configure\"\u003eConfigure your tune →\u003c\/a\u003e\u003c\/p\u003e","brand":"Esse Werks","offers":[{"title":"Stage 1","offer_id":43280676323389,"sku":"EW-TUNE-G16-M850I-S1","price":495.0,"currency_code":"USD","in_stock":true},{"title":"Stage 2","offer_id":43280676356157,"sku":"EW-TUNE-G16-M850I-S2","price":595.0,"currency_code":"USD","in_stock":true},{"title":"Stage 3","offer_id":43280676388925,"sku":"EW-TUNE-G16-M850I-S3","price":895.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/essewerks.com\/products\/tune-g16-m850i","provider":"Esse Werks","version":"1.0","type":"link"}