{"product_id":"aa-midpipe-s58-equal-length","title":"Active Autowerke Signature Equal-Length Mid-Pipe w\/ G-Brace — S58","description":"\u003cp\u003e\u003cstrong\u003eActive Autowerke Signature equal-length mid-pipe with G-brace for the S58 — G80 M3, G82 M4.\u003c\/strong\u003e The factory mid-pipe leaves the two cylinder banks unequal in length, so the straight-six's pulses arrive out of step — the source of the S58's rasp. This corrects it.\u003c\/p\u003e\n\u003ch3\u003eThe design\u003c\/h3\u003e\n\u003cp\u003eA patented equal-length design (US 11,248,511; EU\/UK 3,882,441) that matches both banks for a smooth, cohesive straight-six tone. This Gen 2 adds resonators that strip the rasp, cut the 2,000-rpm drone, and quiet the cold-start rattle. 100% 304 brushed stainless.\u003c\/p\u003e\n\u003ch3\u003eG-brace included\u003c\/h3\u003e\n\u003cp\u003eShips with Active Autowerke's G-brace, which restores transmission-tunnel rigidity once the factory mid-section is removed.\u003c\/p\u003e\n\u003ch3\u003eWhere it fits\u003c\/h3\u003e\n\u003cp\u003eSits between the S58 downpipes and the rear exhaust. Off-road \/ race use only.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eBMW S58 — G80 M3, G82 M4 (incl. Competition). Confirm your chassis in the selector.\u003c\/p\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":43280709812285,"sku":"AA-MP-S58-EL","price":2065.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/AA_Sig_Equal_Midpipe_Brace_01.webp?v=1781743119","url":"https:\/\/essewerks.com\/products\/aa-midpipe-s58-equal-length","provider":"Esse Werks","version":"1.0","type":"link"}