{"product_id":"mercedes-amg-c63-w205-m177-downpipes","title":"Mercedes-AMG C63 W205 Catless, 200-Cell \u0026 400-Cell Downpipes — M177 4.0T | 2015–2021 | YPG Motorsport","description":"\u003ch2\u003eMercedes-AMG C63 W205 Downpipes — Catless, 200-Cell \u0026amp; 400-Cell | M177 4.0L Twin-Turbo V8 | 2015–2021\u003c\/h2\u003e\n\u003cp\u003eYPG Motorsport race downpipes for the Mercedes-AMG C63 and C63 S (W205) replace the restrictive factory catalytic converters with full 3.5-inch mandrel-bent 304 stainless steel pipes. Reduced backpressure, faster turbo spool, sharper throttle response, and a dramatically deeper, more aggressive V8 exhaust note with pronounced burbles and crackles on overrun.\u003c\/p\u003e\n\u003cp\u003eThe W205 C63 is the car that made YPG Motorsport's name. Our C63 holds the \u003cstrong\u003eworld record for the first sub-10-second M177 quarter mile — 9.97 seconds at 828 WHP\u003c\/strong\u003e, set at Beech Bend Raceway Park, Kentucky on April 9, 2019. These are the same downpipes we run on our own builds.\u003c\/p\u003e\n\n\u003ch3\u003eWatch: C63 W205 — Stock vs YPG Tuned Sound Comparison\u003c\/h3\u003e\n\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;max-width:100%;\"\u003e\u003ciframe style=\"position:absolute;top:0;left:0;width:100%;height:100%;\" src=\"https:\/\/www.youtube.com\/embed\/IbhtLMSalZw\" title=\"Mercedes-AMG C63 W205 Stock vs YPG Tuned — Sound Comparison\" frameborder=\"0\" allow=\"accelerometer;autoplay;clipboard-write;encrypted-media;gyroscope;picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cem\u003eHear the difference. Stock C63 W205 vs YPG Stage 2 with catless downpipes — back-to-back sound comparison on the same car.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWatch: C63 W205 with YPG Downpipes\u003c\/h3\u003e\n\u003cdiv style=\"position:relative;padding-bottom:177.78%;height:0;overflow:hidden;max-width:360px;margin:0 auto;\"\u003e\u003ciframe style=\"position:absolute;top:0;left:0;width:100%;height:100%;\" src=\"https:\/\/www.youtube.com\/embed\/8CmeAaIHfA0\" title=\"Mercedes-AMG C63 W205 with YPG Downpipes\" frameborder=\"0\" allow=\"accelerometer;autoplay;clipboard-write;encrypted-media;gyroscope;picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\n\u003ch3\u003ePower Gains with Stage 2 ECU Calibration\u003c\/h3\u003e\n\u003cp\u003eWhen paired with a YPG Stage 2 ECU calibration, the W205 C63 S produces approximately \u003cstrong\u003e660–700 HP and 700–750 lb-ft of torque\u003c\/strong\u003e — a gain of +150–190 HP over stock. At these power levels, the C63 S runs consistent mid-to-low 10-second quarter miles on street tyres.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA Stage 2 ECU tune is mandatory\u003c\/strong\u003e to unlock the full benefit and eliminate the check engine light caused by rear O2 sensor deletion. YPG offers remote OBD flashing worldwide.\u003c\/p\u003e\n\u003ch3\u003eCatless vs 200-Cell vs 400-Cell — Which Should You Choose?\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCatless downpipes ($1,499.99)\u003c\/strong\u003e — Zero restriction. Maximum flow, maximum power, loudest exhaust note. This is what the world record C63 runs. Best for: track cars, drag cars, roll race builds.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e200-cell high-flow catted ($2,499.99)\u003c\/strong\u003e — Ultra-high-performance 200cpsi sport catalysts. Within 5–10 HP of catless while substantially reducing exhaust smell. Best for: daily drivers who want performance without the cabin odor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e400-cell GESI high-flow catted ($3,599)\u003c\/strong\u003e — GESI GEN2 400cpsi catalytic converters rated for 1,000+ HP. Closest to emissions compliance while still delivering serious flow improvements over stock. Best for: street builds prioritizing compliance alongside performance.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eCatless\u003c\/th\u003e\n\u003cth\u003e200-Cell\u003c\/th\u003e\n\u003cth\u003e400-Cell GESI\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow\u003c\/td\u003e\n\u003ctd\u003eMaximum\u003c\/td\u003e\n\u003ctd\u003eNear-catless\u003c\/td\u003e\n\u003ctd\u003eHigh-flow, stock+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExhaust Smell\u003c\/td\u003e\n\u003ctd\u003eNoticeable\u003c\/td\u003e\n\u003ctd\u003eMinimal\u003c\/td\u003e\n\u003ctd\u003eNear-stock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSound\u003c\/td\u003e\n\u003ctd\u003eLoudest\u003c\/td\u003e\n\u003ctd\u003eDeep, refined\u003c\/td\u003e\n\u003ctd\u003eEnhanced, refined\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDaily Friendly\u003c\/td\u003e\n\u003ctd\u003eTrack-focused\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrice\u003c\/td\u003e\n\u003ctd\u003e$1,499.99\u003c\/td\u003e\n\u003ctd\u003e$2,499.99\u003c\/td\u003e\n\u003ctd\u003e$3,599\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eVehicle Compatibility — All W205 C63 Body Styles\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2015–2021 Mercedes-AMG C63 W205 Sedan\u003c\/li\u003e\n\u003cli\u003e2015–2021 Mercedes-AMG C63 S W205 Sedan\u003c\/li\u003e\n\u003cli\u003e2015–2021 Mercedes-AMG C63 S205 Estate \/ Wagon\u003c\/li\u003e\n\u003cli\u003e2015–2021 Mercedes-AMG C63 C205 Coupe\u003c\/li\u003e\n\u003cli\u003e2015–2021 Mercedes-AMG C63 A205 Cabriolet\u003c\/li\u003e\n\u003cli\u003ePre-facelift and Facelift models\u003c\/li\u003e\n\u003cli\u003eM177 4.0L Twin-Turbo V8 — all variants\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 3.5 inches — full mandrel bent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Low-carbon 304 stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e TIG welded, back-purged, hand finished\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlanges:\u003c\/strong\u003e CNC-machined 304 stainless\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Direct OEM replacement — bolt-on\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in Germany\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Lifetime\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eProfessional installation recommended. 2–3 hours on a vehicle lift. Bolt-on replacement — no cutting, welding, or fabrication. Compatible with factory and aftermarket cat-back exhaust systems. Stage 2 ECU calibration required. YPG offers remote flashing worldwide.\u003c\/p\u003e\n\u003ch3\u003eWhy YPG Motorsport\u003c\/h3\u003e\n\u003cp\u003eThe W205 C63 is our signature platform. Our C63 ran \u003cstrong\u003e9.97 seconds at 828 WHP\u003c\/strong\u003e at Beech Bend Raceway Park, Kentucky — the first M177-powered C63 in history to break 10 seconds. Since 2011.\u003c\/p\u003e\n\u003cp\u003eFree worldwide shipping. GCC stock for same-week dispatch to Kuwait, UAE, Saudi Arabia, Qatar, Bahrain, and Oman.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow much HP do C63 W205 downpipes add?\u003c\/strong\u003e\u003cbr\u003e20–40 HP standalone. With Stage 2 tune: 660–700 HP total on the C63 S.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need a tune with downpipes?\u003c\/strong\u003e\u003cbr\u003eYes. Stage 2 ECU calibration is mandatory.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill these fit the C63 Coupe, Wagon, and Cabriolet?\u003c\/strong\u003e\u003cbr\u003eYes. Same fitment across all W205 C63 body styles.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCatless vs 200-cell vs 400-cell — which is better?\u003c\/strong\u003e\u003cbr\u003eCatless for max power and track use. 200-cell for daily driving without the smell. 400-cell GESI for the closest to emissions compliance with strong flow gains.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow much do C63 W205 downpipes cost?\u003c\/strong\u003e\u003cbr\u003eCatless: $1,499.99. 200-cell: $2,499.99. 400-cell GESI: $3,599. Free worldwide shipping. Lifetime warranty.\u003c\/p\u003e","brand":"YPG Motorsport","offers":[{"title":"Catless","offer_id":16776110899264,"sku":"YPG-C63-W205-M177-DP","price":1499.99,"currency_code":"USD","in_stock":true},{"title":"200-Cell High-Flow Catted","offer_id":48870359662784,"sku":"YPG-C63-W205-M177-DP-200CELL","price":2499.99,"currency_code":"USD","in_stock":true},{"title":"400-Cell GESI High-Flow Catted","offer_id":48871901593792,"sku":"YPG-C63-W205-M177-DP-400CELL","price":3599.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0084\/7288\/7360\/files\/clean_c63_w205.png?v=1788757049","url":"https:\/\/ypgmotorsport.com\/products\/mercedes-amg-c63-w205-m177-downpipes","provider":"YPG Motorsport","version":"1.0","type":"link"}