{"product_id":"m276-stage-2-bundle-c43-c400-c450-e43-e400-e450","title":"M276 Stage 2 Bundle | Catless Downpipes + ECU Tune – C43 C400 C450 E43 E400 E450 (W205 \/ W213)","description":"\u003cdiv style=\"font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif; line-height: 1.75; color: #222; max-width: 920px; margin: 0 auto; padding: 24px 20px;\"\u003e\n\u003cp style=\"font-size: 13px; color: #555; text-align: center; margin-bottom: 20px;\"\u003e\u003cstrong\u003eOff-road and competition use only.\u003c\/strong\u003e Not legal for street use or on emissions-controlled vehicles.\u003c\/p\u003e\n\n\u003cp style=\"font-size: 17px; color: #333; margin-bottom: 32px;\"\u003eTake your W205 C43 AMG to Stage 2 in a single order. This package combines high-flow catless downpipes with our custom remote ECU calibration — strong power gains, sharper throttle response, and a deeper AMG exhaust note, with the car staying refined and reliable for daily driving.\u003c\/p\u003e\n\n\u003cdiv style=\"background: #f8f8f8; border-radius: 10px; padding: 18px 20px; margin-bottom: 32px;\"\u003e\n\u003cp style=\"margin: 0 0 8px; font-weight: 700; font-size: 16px;\"\u003eWhy buy it as a package?\u003c\/p\u003e\n\u003cp style=\"margin: 0; color: #444;\"\u003eThe calibration is written around the exact downpipes you're getting, so the tune is matched to your hardware from day one instead of paying for a re-flash later. One order, one setup, one point of support.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size: 21px; margin: 0 0 14px; color: #222;\"\u003eWhat's Included\u003c\/h2\u003e\n\u003cul style=\"padding-left: 22px; margin-bottom: 32px; line-height: 1.85; font-size: 16px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCatless downpipes\u003c\/strong\u003e in T304 stainless steel, direct bolt-on\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom remote ECU calibration\u003c\/strong\u003e with full CEL resolution and multi-map support\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium OBD2 interface\u003c\/strong\u003e for easy home flashing\u003c\/li\u003e\n\u003cli\u003eDetailed installation guide and dedicated post-tune support\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size: 21px; margin: 0 0 14px; color: #222;\"\u003ePerformance\u003c\/h2\u003e\n\u003cul style=\"padding-left: 22px; margin-bottom: 32px; line-height: 1.85; font-size: 16px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage 2 output:\u003c\/strong\u003e up to \u003cstrong\u003e485 hp \/ 530 lb-ft\u003c\/strong\u003e on premium pump gas\u003c\/li\u003e\n\u003cli\u003eSignificantly faster turbo spool and sharper throttle response\u003c\/li\u003e\n\u003cli\u003eDeeper, more aggressive AMG exhaust note under load\u003c\/li\u003e\n\u003cli\u003eProven on both street and track use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"margin: 32px 0; text-align: center;\"\u003e\n\u003cp style=\"margin-bottom: 10px; font-style: italic; color: #444;\"\u003eOur Stage 2 C43 against a modified Nissan GT-R:\u003c\/p\u003e\n\u003ciframe title=\"C43 AMG Stage 2 vs Modified Nissan GT-R\" src=\"https:\/\/www.youtube.com\/embed\/vHrlMiZ1BTU\" style=\"max-width: 720px; border-radius: 10px; display: block; margin: 0 auto;\" height=\"400\" width=\"100%\" loading=\"lazy\"\u003e\u003c\/iframe\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size: 21px; margin: 32px 0 14px; color: #222;\"\u003eChoose Your Downpipe Finish\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 15px; margin-bottom: 20px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background: #1a1a1a; color: #fff;\"\u003e\n\u003cth style=\"padding: 12px 14px; text-align: left; border: 1px solid #333;\"\u003eFinish\u003c\/th\u003e\n\u003cth style=\"padding: 12px 14px; text-align: left; border: 1px solid #333;\"\u003eBest for\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px 14px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eRaw Stainless\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 14px; border: 1px solid #ddd;\"\u003eClassic raw look with excellent durability. Great value and easy to maintain.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px 14px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCeramic Coated\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 14px; border: 1px solid #ddd;\"\u003eStrong heat management and a premium finished look.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px 14px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eHeat Shielded\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 14px; border: 1px solid #ddd;\"\u003eMaximum thermal protection and fastest spool. Ideal for track or hot-climate use.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"font-weight: 600; color: #b22222; text-align: center; margin-bottom: 32px;\"\u003eUse the selector above to choose your finish.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size: 21px; margin: 0 0 14px; color: #222;\"\u003eVehicle Compatibility\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 15px; margin-bottom: 24px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background: #1a1a1a; color: #fff;\"\u003e\n\u003cth style=\"padding: 14px 16px; text-align: left; border: 1px solid #333;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"padding: 14px 16px; text-align: left; border: 1px solid #333;\"\u003eChassis\u003c\/th\u003e\n\u003cth style=\"padding: 14px 16px; text-align: left; border: 1px solid #333;\"\u003eYears\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 14px 16px; border: 1px solid #ddd;\"\u003eC43 AMG\u003c\/td\u003e\n\u003ctd style=\"padding: 14px 16px; border: 1px solid #ddd;\"\u003eW205\u003c\/td\u003e\n\u003ctd style=\"padding: 14px 16px; border: 1px solid #ddd;\"\u003e2015–2021\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 14px 16px; border: 1px solid #ddd;\"\u003eC400 \/ C450\u003c\/td\u003e\n\u003ctd style=\"padding: 14px 16px; border: 1px solid #ddd;\"\u003eW205\u003c\/td\u003e\n\u003ctd style=\"padding: 14px 16px; border: 1px solid #ddd;\"\u003e2015–2016\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 14px 16px; border: 1px solid #ddd;\"\u003eE43 AMG\u003c\/td\u003e\n\u003ctd style=\"padding: 14px 16px; border: 1px solid #ddd;\"\u003eW213\u003c\/td\u003e\n\u003ctd style=\"padding: 14px 16px; border: 1px solid #ddd;\"\u003e2016–2018\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 14px 16px; border: 1px solid #ddd;\"\u003eE400 \/ E450\u003c\/td\u003e\n\u003ctd style=\"padding: 14px 16px; border: 1px solid #ddd;\"\u003eW213 \/ C238 \/ A238\u003c\/td\u003e\n\u003ctd style=\"padding: 14px 16px; border: 1px solid #ddd;\"\u003e2016–2020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"font-size: 15px; color: #444; margin-bottom: 36px;\"\u003eAll M276 3.0L BiTurbo V6. \u003cstrong\u003eNot sure?\u003c\/strong\u003e \u003ca href=\"mailto:benzunitedparts@gmail.com?subject=C43%20Stage%202%20Bundle%20Fitment%20Check\" style=\"color: #b30000; font-weight: 600;\"\u003eSend us your VIN\u003c\/a\u003e and we'll confirm before you order.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size: 21px; margin-bottom: 18px; color: #222;\"\u003eCommon Questions\u003c\/h2\u003e\n\u003cdetails style=\"margin-bottom: 16px; border-bottom: 1px solid #eee; padding-bottom: 16px;\"\u003e\n\u003csummary style=\"font-weight: 600; cursor: pointer; font-size: 16px;\"\u003eHow does the remote calibration work?\u003c\/summary\u003e\n\u003cp style=\"margin: 12px 0 0 24px; color: #444;\"\u003eWe guide you through it step by step. You connect the interface and we flash the car remotely — usually under 45 minutes.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 16px; border-bottom: 1px solid #eee; padding-bottom: 16px;\"\u003e\n\u003csummary style=\"font-weight: 600; cursor: pointer; font-size: 16px;\"\u003eWill it throw a check engine light?\u003c\/summary\u003e\n\u003cp style=\"margin: 12px 0 0 24px; color: #444;\"\u003eNo. The calibration is written specifically to resolve the fault codes catless downpipes would otherwise set — that's a large part of why the package exists.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 16px; border-bottom: 1px solid #eee; padding-bottom: 16px;\"\u003e\n\u003csummary style=\"font-weight: 600; cursor: pointer; font-size: 16px;\"\u003eIs daily drivability affected?\u003c\/summary\u003e\n\u003cp style=\"margin: 12px 0 0 24px; color: #444;\"\u003eNo — the car keeps its refined character with improved performance and response.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 16px; border-bottom: 1px solid #eee; padding-bottom: 16px;\"\u003e\n\u003csummary style=\"font-weight: 600; cursor: pointer; font-size: 16px;\"\u003eIs this street legal?\u003c\/summary\u003e\n\u003cp style=\"margin: 12px 0 0 24px; color: #444;\"\u003eNo — intended for off-road and competition use only.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 32px; border-bottom: 1px solid #eee; padding-bottom: 16px;\"\u003e\n\u003csummary style=\"font-weight: 600; cursor: pointer; font-size: 16px;\"\u003eIs there a warranty?\u003c\/summary\u003e\n\u003cp style=\"margin: 12px 0 0 24px; color: #444;\"\u003eYes — a 12-month structural warranty on the downpipes, with guaranteed fitment on every model listed above.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2 style=\"font-size: 21px; margin: 0 0 14px; color: #222;\"\u003eBuy With Confidence\u003c\/h2\u003e\n\u003cul style=\"padding-left: 22px; margin-bottom: 32px; line-height: 1.85; font-size: 16px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e12-month structural warranty\u003c\/strong\u003e with guaranteed fitment on listed models\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSame-day U.S. shipping\u003c\/strong\u003e with tracking\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDedicated post-purchase support\u003c\/strong\u003e — the calibration is ours, so support comes from the people who wrote it\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment confirmed before you buy\u003c\/strong\u003e — send your VIN and we'll verify\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin-bottom: 36px;\"\u003e\u003ca href=\"mailto:benzunitedparts@gmail.com?subject=C43%20Stage%202%20Bundle%20Question\" style=\"color: #b30000; font-weight: 600;\"\u003eConfirm fitment or ask a question →\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp style=\"text-align: center; font-size: 14px; color: #555; font-weight: 600; letter-spacing: 0.3px;\"\u003eBenzUnited Parts • C43 Stage 2 Package • 12-Month Warranty • Same-Day Shipping\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BenzUnited Parts","offers":[{"title":"Raw Stainless","offer_id":46690950676655,"sku":null,"price":1995.0,"currency_code":"USD","in_stock":true},{"title":"Ceramic Coated","offer_id":46690950709423,"sku":null,"price":1995.0,"currency_code":"USD","in_stock":true},{"title":"Heat Shielded","offer_id":46690950742191,"sku":null,"price":2149.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0631\/8718\/9935\/files\/m276-ecu-tune-485hp-530tq-mercedes-c43-e43-glc43.png?v=1773973730","url":"https:\/\/benzunitedparts.com\/products\/m276-stage-2-bundle-c43-c400-c450-e43-e400-e450","provider":"BenzUnited Parts","version":"1.0","type":"link"}