{"product_id":"e63-gt63-heat-shielded-catless-downpipes","title":"M177 Catless Downpipes - Heat Shielded 304 Stainless for AMG GT 63 \u0026 E63","description":"\u003cdiv style=\"font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif; color: rgb(34, 34, 34); line-height: 1.75; max-width: 920px; margin: 0px auto; padding-top: 24px; padding-right: 20px; padding-bottom: 24px;\"\u003e\n\u003cp style=\"font-size: 17px; color: #333; margin-bottom: 32px;\"\u003ePrecision-engineered 304 stainless steel catless downpipes with integrated heat shielding for the M177 BiTurbo V8. Designed for dramatically improved exhaust flow, faster turbo spool, sharper throttle response, and a deeper, richer exhaust note.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 21px; margin: 0 0 14px; color: #222;\"\u003eKey Features \u0026amp; Benefits\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\u003eReduced exhaust backpressure\u003c\/strong\u003e → faster turbo spool and sharper throttle response\u003c\/li\u003e\n\u003cli\u003eIntegrated high-temperature thermal shielding to protect surrounding components\u003c\/li\u003e\n\u003cli\u003eBack-purged TIG welds and precision-machined flanges for perfect fit and leak-free performance\u003c\/li\u003e\n\u003cli\u003eBolt-on design with V-band clamps — installs in 2–3 hours\u003c\/li\u003e\n\u003cli\u003eHeavy-wall 304 stainless steel construction built to last\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"font-size: 21px; margin: 0 0 14px; color: #222;\"\u003eCompatibility\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 15px; margin-bottom: 40px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background: #1a1a1a; color: #fff;\"\u003e\n\u003cth style=\"padding: 14px 16px; text-align: left; border: 1px solid rgb(51, 51, 51); width: 20.3428%;\"\u003eChassis\u003c\/th\u003e\n\u003cth style=\"padding: 14px 16px; text-align: left; border: 1px solid rgb(51, 51, 51); width: 25.7079%;\"\u003eYears\u003c\/th\u003e\n\u003cth style=\"padding: 14px 16px; text-align: left; border: 1px solid rgb(51, 51, 51); width: 53.8748%;\"\u003eModels\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 rgb(221, 221, 221); width: 20.3428%;\"\u003eX290\u003c\/td\u003e\n\u003ctd style=\"padding: 14px 16px; border: 1px solid rgb(221, 221, 221); width: 25.7079%;\"\u003e2019–2023\u003c\/td\u003e\n\u003ctd style=\"padding: 14px 16px; border: 1px solid rgb(221, 221, 221); width: 53.8748%;\"\u003eAMG GT 63 4-Door Coupe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 14px 16px; border: 1px solid rgb(221, 221, 221); width: 20.3428%;\"\u003eX290\u003c\/td\u003e\n\u003ctd style=\"padding: 14px 16px; border: 1px solid rgb(221, 221, 221); width: 25.7079%;\"\u003e2019–2023\u003c\/td\u003e\n\u003ctd style=\"padding: 14px 16px; border: 1px solid rgb(221, 221, 221); width: 53.8748%;\"\u003eAMG GT 63 S 4-Door Coupe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 14px 16px; border: 1px solid rgb(221, 221, 221); width: 20.3428%;\"\u003eW213\u003c\/td\u003e\n\u003ctd style=\"padding: 14px 16px; border: 1px solid rgb(221, 221, 221); width: 25.7079%;\"\u003e2017–2023\u003c\/td\u003e\n\u003ctd style=\"padding: 14px 16px; border: 1px solid rgb(221, 221, 221); width: 53.8748%;\"\u003eE63 AMG S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 14px 16px; border: 1px solid rgb(221, 221, 221); width: 20.3428%;\"\u003eW213\u003c\/td\u003e\n\u003ctd style=\"padding: 14px 16px; border: 1px solid rgb(221, 221, 221); width: 25.7079%;\"\u003e2016–2020\u003c\/td\u003e\n\u003ctd style=\"padding: 14px 16px; border: 1px solid rgb(221, 221, 221); width: 53.8748%;\"\u003eE63 AMG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ciframe title=\"M177 Catless Downpipes Sound - Tuned\" src=\"https:\/\/www.youtube.com\/embed\/Y9tOWsqLiL0\" style=\"max-width: 720px; border-radius: 10px; display: block; margin: 0 auto 24px;\" height=\"340\" width=\"100%\"\u003e\u003c\/iframe\u003e\n\u003cp style=\"margin-bottom: 12px; font-weight: 600;\"\u003e\u003cstrong\u003eW213 E63s with Tune + BenzUnited Parts Downpipes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cvideo width=\"100%\" height=\"340\" controls=\"controls\" style=\"max-width: 720px; border-radius: 10px; display: block; margin: 0 auto;\" aria-label=\"Mercedes-AMG W213 E63 S revving with newly installed M177 catless downpipes – real exhaust sound on stock tune\"\u003e\n  \u003csource src=\"https:\/\/cdn.shopify.com\/videos\/c\/o\/v\/12a3c498ceb44af88a9367ac1c462995.mp4\" type=\"video\/mp4\"\u003e\n  Your browser does not support the video tag.\n\u003c\/source\u003e\u003c\/video\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eW213 E63s with BenzUnited Parts Downpipes Only (Stock Tune)\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2 style=\"font-size: 21px; margin-bottom: 18px; color: #222;\"\u003eFrequently Asked 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;\"\u003eDo these require a tune?\u003c\/summary\u003e\n\u003cp style=\"margin: 12px 0 0 24px; color: #444;\"\u003eThey deliver noticeable gains on stock cars. A tune is highly recommended for maximum performance.\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;\"\u003eAre they catless?\u003c\/summary\u003e\n\u003cp style=\"margin: 12px 0 0 24px; color: #444;\"\u003eYes — fully catless. Intended for off-road, track, and racing use only.\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 they fit my exact vehicle?\u003c\/summary\u003e\n\u003cp style=\"margin: 12px 0 0 24px; color: #444;\"\u003eDirect bolt-on fitment for all listed M177-powered models above.\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;\"\u003eHow long does installation take?\u003c\/summary\u003e\n\u003cp style=\"margin: 12px 0 0 24px; color: #444;\"\u003eProfessional shops typically complete the install in 2–3 hours.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdiv style=\"text-align: center; margin: 48px 0 36px;\"\u003e\u003ca style=\"background: #b30000; color: #fff; font-size: 17px; font-weight: 600; padding: 16px 42px; border-radius: 8px; text-decoration: none; display: inline-block; box-shadow: 0 3px 10px rgba(179, 0, 0, 0.25);\" href=\"#\"\u003eAdd M177 Catless Downpipes to Cart\u003c\/a\u003e\u003c\/div\u003e\n\u003cp style=\"text-align: center; font-size: 14px; color: #555; font-weight: 600; letter-spacing: 0.3px;\"\u003eBenzUnited Parts • Premium M177 Downpipes • Ships Fast\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BenzUnited Parts","offers":[{"title":"Default Title","offer_id":46707189809327,"sku":null,"price":749.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0631\/8718\/9935\/files\/m177-catless-downpipes-main-set-heat-shielded.jpg?v=1783582363","url":"https:\/\/benzunitedparts.com\/products\/e63-gt63-heat-shielded-catless-downpipes","provider":"BenzUnited Parts","version":"1.0","type":"link"}