{"product_id":"tune-f13-m6","title":"BMW F13 M6 Coupe (S63TU)","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 F13 M6 Coupe (S63TU) — built from datalogs on your car, not a map off a shelf. The F13 is the fixed-roof M6 — the stiffer, lighter coupe of the pair, and the one owners are most likely to take to a track day. We calibrate the S63TU as a serious performance engine, reconciling timing, knock, fuel trims, and load against your own logs until the math and the data agree.\u003c\/p\u003e\n\u003cp\u003eBecause the coupe is the sharper-driving body of the two, the tune is built to reward consistent, repeatable hard use rather than a single hero pull.\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":43280677994557,"sku":"EW-TUNE-F13-M6-S1","price":495.0,"currency_code":"USD","in_stock":true},{"title":"Stage 2","offer_id":43280678027325,"sku":"EW-TUNE-F13-M6-S2","price":595.0,"currency_code":"USD","in_stock":true},{"title":"Stage 3","offer_id":43280678060093,"sku":"EW-TUNE-F13-M6-S3","price":895.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/essewerks.com\/products\/tune-f13-m6","provider":"Esse Werks","version":"1.0","type":"link"}