{"product_id":"er-s58-g87-m2-mid-pipes","title":"Evolution Racewerks Competition Series Mid Pipes — S58 G87 M2","description":"\u003cp\u003e\u003cstrong\u003eEvolution Racewerks Competition Series mid pipes for the S58 in the G87 M2 chassis.\u003c\/strong\u003e Same engine as the G80 M3 and G82 M4 — but the M2's shorter wheelbase and tighter chassis packaging required ER to engineer a chassis-specific mid pipe routing. 3\" mandrel-bent T304 stainless, H-crossover design, replaces the OEM resonator-and-mid-pipe assembly.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's different about the G87 specifically\u003c\/h3\u003e\n\u003cp\u003eThe G87 M2 shares the S58 powertrain with the M3\/M4 but the chassis exhaust path is shorter (~12\" less mid-pipe length). The mid pipe geometry is different — same construction philosophy, different fitment. Not interchangeable with the G80\/G82 mid pipes.\u003c\/p\u003e\n\n\u003ch3\u003eH-crossover\u003c\/h3\u003e\n\u003cp\u003eSame H-style crossover design as the G80\/G82 mid pipe — ER's testing settled on H over X for drone reduction and low-end torque. Preserves the OEM crossover architecture choice while opening the flow path.\u003c\/p\u003e\n\n\u003ch3\u003eAudible change\u003c\/h3\u003e\n\u003cp\u003eAggressive without drone at cruise. The G87 M2's smaller chassis amplifies the note slightly more than the M3\/M4 chassis does — the engine bay sits closer to the cabin, the cabin sits closer to the rear muffler. Most G87 owners report it's exactly the volume they wanted from the M2.\u003c\/p\u003e\n\n\u003ch3\u003eWhat Evolution Racewerks builds in\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e100% 304-grade stainless steel construction\u003c\/li\u003e\n  \u003cli\u003eMandrel-bent piping — smooth transitions, no flow restrictions at the bends\u003c\/li\u003e\n  \u003cli\u003e100% TIG-welded by ER's in-house fabricators\u003c\/li\u003e\n  \u003cli\u003ePrecision CNC-machined flanges (billet 304 stainless)\u003c\/li\u003e\n  \u003cli\u003eMade in the USA — manufactured in-house at ER's California facility\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLimited Lifetime Warranty\u003c\/strong\u003e against manufacturing defects\u003c\/li\u003e\n  \u003cli\u003eFree shipping in the continental US on orders over $100 from Evolution Racewerks (we pass that through — no shipping markup from us)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eEGT bung included — standard on every Esse Werks ER order\u003c\/h3\u003e\n\u003cp\u003eEvolution Racewerks offers the EGT (Exhaust Gas Temperature) sensor bung as an optional add-on on their direct catalog. \u003cstrong\u003eWe include it on every ER downpipe \/ mid pipe we ship — no upcharge.\u003c\/strong\u003e Comes pre-installed with a 1\/8\" NPT plug so you don't need to run the EGT sensor immediately. When you're ready to add EGT monitoring to your build (recommended at Stage 2 and above for any sustained-load driving), the bung is already there.\u003c\/p\u003e\n\n\u003ch3\u003eSwainTech White Lightning — our signature coating\u003c\/h3\u003e\n\u003cp\u003eWhen we coat a part, we use one coating: SwainTech White Lightning — a true ceramic thermal barrier applied about 0.015\" thick (versus roughly 0.002\" for paint-style \"ceramic\" finishes) and sprayed molten so it bonds to the metal instead of sitting on top. It cuts radiant heat off the exhaust by roughly 35–55%, dropping underhood and intake temperatures, and keeps heat inside the pipe where it sustains exhaust velocity and scavenging. And it's white — a deliberate signature in a market that otherwise all looks the same in black. Select it above.\u003c\/p\u003e\n\n\u003ch3\u003eCalifornia restriction\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eThis product is not for sale, installation, or use on licensed vehicles in the State of California.\u003c\/strong\u003e 49-state product. Vehicle Compliance Waiver signed at order intake. International orders ship without restriction.\u003c\/p\u003e\n\n\u003ch3\u003eInstall\u003c\/h3\u003e\n\u003cp\u003e~3-4 hours at a competent shop. Reuses OEM hardware where applicable. Includes all hardware for complete installation.\u003c\/p\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eS58 in G87 M2 chassis (2023+).\u003c\/p\u003e\n\u003cp\u003eThis part is the mid-pipe-side core of every S58 Stage 2 build. The \u003ca href=\"\/products\/stage-2-kit-s58\"\u003eStage 2 Kit — S58\u003c\/a\u003e packages the matched parts + calibration for 8% under à la carte.\u003c\/p\u003e","brand":"Evolution Racewerks","offers":[{"title":"Brush Finish","offer_id":43280684351549,"sku":"EW-EXH-ER-S58-G87","price":1305.0,"currency_code":"USD","in_stock":true},{"title":"SwainTech White Lightning","offer_id":43280684384317,"sku":"EW-EXH-ER-S58-G87-CER","price":1555.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/2553\/8109\/files\/er-s58-g87-m2-mid-pipes-01.webp?v=1781743118","url":"https:\/\/essewerks.com\/products\/er-s58-g87-m2-mid-pipes","provider":"Esse Werks","version":"1.0","type":"link"}