{"title":"S550 \/ S500 · W221 · M278 (2011–2013)","description":"\u003cp\u003eParts and upgrades that fit the S550 \/ S500 (W221 chassis, M278 engine, 2011–2013).\u003c\/p\u003e","products":[{"product_id":"s550-m278-magnum-filter","title":"S550 M278 Magnum Filter","description":"\u003ch2\u003eDry air filters for your S550\u003c\/h2\u003e\u003cp\u003eUpgrade your Mercedes-Benz S550 with the M278 engine with aFe Magnum Flow dry air filters. Whether your car is close to stock or already modified, these filters offer an oil-free option for your intake setup.\u003c\/p\u003e\u003ch3\u003eNo filter oil. No oily mess.\u003c\/h3\u003e\u003cp\u003eGet ready for your next drive without the extra step or mess of oiling your air filters. The dry-filter design requires no filter oil.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFor the Mercedes-Benz S550 with the M278 engine\u003c\/li\u003e\n\u003cli\u003eaFe Magnum Flow dry air filters\u003c\/li\u003e\n\u003cli\u003eNo filter oil required\u003c\/li\u003e\n\u003cli\u003eA standalone upgrade or addition to a modified setup\u003c\/li\u003e\n\u003cli\u003eWashable and reusable: allow filters to dry fully before reuse\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"aFe","offers":[{"title":"Default Title","offer_id":43346787991587,"sku":null,"price":179.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/5122\/4611\/files\/63_AMG_magnum_filters.jpg?v=1793898819"},{"product_id":"s550-biturbo-ecu-tune","title":"S550 Biturbo ECU Tune","description":"\u003cp\u003eUnlock the hidden performance within your luxury sedan with the MBH Motorsports Performance ECU Tune. Whether you are looking for sharper responsiveness or seeking to extract the absolute maximum output from the M278 twin-turbo V8 platform, our software recalibration transforms your Mercedes S550 into an AMG-rivaling powerhouse.\u003c\/p\u003e\n\u003cp\u003eEngineered and refined through extensive dyno development and data logging, MBH ECU calibrations precisely optimize boost profiles, ignition timing, and air-fuel ratios. While providing an aggressive performance boost on an otherwise stock car, this tune is specifically calibrated to take full advantage of the reduced backpressure from an MBH Motorsports downpipe system—delivering staggering, dyno-proven gains of \u003cb\u003e+108 horsepower and +138 ft-lbs of torque\u003c\/b\u003e.\u003c\/p\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003ch5\u003e\u003cstrong\u003eRefined Dyno-Proven Calibration\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis is not a generic, off-the-shelf flash. Every calibration is designed to smooth out power delivery, virtually eliminate electronic throttle lag, and produce an aggressive mid-range punch that pulls hard all the way to redline. Despite the massive increase in output, the S550 retains its signature factory refinement, smooth shifting characteristics, and whisper-quiet cruising manners. All factory engine protection routines, thermal thresholds, and knock sensors remain fully active for total operational safety.\u003c\/p\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003ch5\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMassive Output Gains:\u003c\/b\u003e Delivers dyno-proven increases of up to \u003cb\u003e+108 HP and +138 TQ\u003c\/b\u003e over factory numbers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eDyno Tested:\u003c\/b\u003e Extensively developed through hours of dyno cell calibration and high-load data logging for seamless power delivery.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eDownpipe Synergy:\u003c\/b\u003e Custom-tailored to maximize airflow velocity and exhaust scavenging when paired with MBH Motorsports downpipes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eInstant Boost Response:\u003c\/b\u003e Eliminates factory throttle dead zones and lag for immediate, aggressive acceleration off the line.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eFactory Safety Buffers Preserved:\u003c\/b\u003e Retains all OEM ECU failsafes, thermal limiters, and knock monitoring parameters for complete powertrain reliability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eTop Speed Limiter Removal:\u003c\/b\u003e Deactivates factory speed governors for unrestricted top-end capability on closed courses.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003ch5\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eEngine:\u003c\/b\u003e Mercedes-Benz M278 4.6L V8 Biturbo\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eChassis:\u003c\/b\u003e Mercedes-Benz S550 Sedan \u0026amp; Coupe (W221 \/ W222 \/ C217)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ci\u003eDisclaimer: For off-road racing and competition use only. This product is not intended or legal for installation on registered, licensed vehicles operated on public roads or highways.\u003c\/i\u003e\u003c\/p\u003e","brand":"MBH Motorsports","offers":[{"title":"Send in your ECU","offer_id":43346789924899,"sku":null,"price":985.0,"currency_code":"USD","in_stock":true},{"title":"Remote flash device (+$199)","offer_id":44195196076067,"sku":null,"price":1184.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/5122\/4611\/files\/ECU_new.jpg?v=1784570476"},{"product_id":"s550-w221-biturbo-downpipes","title":"S550 W221 Biturbo Downpipes","description":"\u003cp\u003eThe Mercedes S550 sits at the top of the mountain when it comes to luxury performance, seamlessly merging executive refinement with twin-turbo V8 muscle. At MBH Motorsports, we engineered our S550 Biturbo Downpipes to eliminate heavy factory exhaust restrictions and push this platform to the next level—elevating your S550 beyond stock S63 AMG power figures when paired with performance software.\u003c\/p\u003e\n\u003cp\u003eBy clearing the pathway immediately downstream of the turbochargers, this system drastically minimizes backpressure, accelerates boost spool, and unleashes the aggressive acceleration previously held back by factory catalytic hardware.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eHandcrafted USA Quality \u0026amp; 1-Hour Install\u003c\/h4\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eEvery set of MBH downpipes is proudly hand-fabricated in the USA from heavy-duty, 16-gauge T-304 American stainless steel. Built to withstand extreme heat cycles without cracking or warping, this system is precision-engineered for an exact OEM fit. The streamlined bolt-on design allows for a clean, direct installation that takes less than an hour to complete.\u003c\/p\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003ch4\u003eKey Features:\u003c\/h4\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eExceeds S63 AMG Power:\u003c\/b\u003e Eliminates severe exhaust bottlenecks to push your M278 Biturbo past factory S63 AMG output levels when paired with ECU tuning.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eUnder 1-Hour Installation:\u003c\/b\u003e Direct bolt-on design engineered to mount smoothly to factory locations in less than 60 minutes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e16-Gauge T-304 US Stainless Steel:\u003c\/b\u003e Fabricated in the USA from premium American stainless steel for lasting thermal strength and structural integrity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eRapid Turbo Spool:\u003c\/b\u003e Significantly reduces backpressure off the turbochargers for immediate boost response and broader torque delivery.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eRefined V8 Exhaust Note:\u003c\/b\u003e Unlocks an authoritative, deep V8 tone under load while maintaining executive cabin quietness at light throttle.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003ch4\u003eCompatibility:\u003c\/h4\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eEngine:\u003c\/b\u003e Mercedes-Benz M278 4.6L V8 Biturbo\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eChassis:\u003c\/b\u003e Mercedes-Benz S550 W221\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ci\u003eDisclaimer: For off-road racing and competition use only. This product is not intended or legal for installation on registered, licensed vehicles operated on public roads or highways.\u003c\/i\u003e\u003c\/p\u003e","brand":"MBH Motorsports","offers":[{"title":"Default Title","offer_id":43346789990435,"sku":null,"price":1536.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/5122\/4611\/files\/S63_w221_downpieps_dark.jpg?v=1790700284"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/5122\/4611\/collections\/s550_w221_site_Image.jpg?v=1785256043","url":"https:\/\/mbhmotorsports.com\/collections\/w221-m278.oembed","provider":"MBH Motorsports","version":"1.0","type":"link"}