{"product_id":"bmw-x3m-x4m-valved-sport-exhaust-system-f97-f98-bmw-f9x-x3m-vses-br-brsh","title":"BMW X3M \/ X4M Valved Sport Exhaust System (F97 \/ F98)","description":"\u003cstyle\u003e.embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }\u003c\/style\u003e\n\u003cdiv class=\"embed-container\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/49KLk0Oy8SI?si=jyhp8depBTezVsDz\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch1\u003e\u003cstrong\u003eBMW X3M \u0026amp; X4M Valvetronic Designs Valved Exhaust System\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch3\u003ePrecision Engineering. Distinctive Sound. Total Control.\u003c\/h3\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cbr\u003eThe Valvetronic Experience\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eFor those who demand an\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eunrivaled exhaust experience\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efrom their BMW X3M or X4M, Valvetronic Designs has created a system that blends\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eprecision engineering, raw emotion, and absolute control\u003c\/strong\u003e. Built with a deep understanding of the BMW M community, this exhaust not only boosts performance but also transforms the character of the S58 engine—delivering a visceral and exhilarating sound every time you drive.\u003c\/p\u003e\n\u003cp\u003eThe BMW G8X platform delivers incredible performance—but the sound still leaves room for improvement. The Valvetronic Designs HFD Exhaust System was developed to completely redefine the S58’s sound profile by combining our High Frequency Development midpipe with our signature valved axle-back system.\u003c\/p\u003e\n\u003cp\u003eHFD, or\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHigh Frequency Development\u003c\/strong\u003e, represents a clean-sheet approach to exhaust engineering focused on optimizing exhaust pulse timing, improving acoustic balance, and creating a smoother, more exotic inline-six tone. Paired with our valved axle-back, this system delivers both refined daily drivability and aggressive performance sound on demand.\u003c\/p\u003e\n\u003cp\u003eDesigned as a complete solution, the HFD Exhaust System enhances tone quality—not just volume—eliminating unwanted rasp and low-RPM harshness while preserving the high-frequency character that makes the S58 come alive.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cbr\u003eChoose Your Sound Profile\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eSingle Mid-Pipe Configuration\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eraw, unfiltered S58 experience\u003c\/strong\u003e. This design enhances the factory sound characteristics while unlocking a deeper, more aggressive tone. Expect:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEnhanced clarity and volume\u003c\/li\u003e\n\u003cli\u003ePunchy, M-car exhaust note\u003c\/li\u003e\n\u003cli\u003eImproved flow and responsiveness\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePerfect for drivers who want their X3M\/X4M to make a bold statement with every start-up and wide-open throttle pull.\u003c\/p\u003e\n\u003cstyle\u003e.embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }\u003c\/style\u003e\n\u003cdiv class=\"embed-container\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/x_cThHGrMcM?si=13p3f7PwfoDYzLYR\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cbr\u003eEqual-Length Resonated Full Exhaust\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eFor those seeking something truly special, our equal-length resonated configuration delivers a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003erefined, exotic tone\u003c\/strong\u003e. By balancing exhaust pulses, this system eliminates uneven frequencies, producing a smooth, motorsport-inspired sound reminiscent of high-end European supercars. Ideal for enthusiasts who want both\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eperformance and a unique acoustic signature\u003c\/strong\u003e.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eHFD midpipe design\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eDeveloped from the ground up to refine exhaust pulse timing and deliver a smoother, higher-quality sound profile.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eValved axle-back system:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eProvides full control over sound—quiet and refined when closed, aggressive and engaging when opened.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"font-size: 0.875rem;\"\u003eFull system integration:\u003c\/strong\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eEngineered as a complete exhaust solution to ensure optimal flow, tone, and performance.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"font-size: 0.875rem;\"\u003e3-inch midpipe layout:\u003c\/strong\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eSupports improved exhaust flow and higher-horsepower applications, including hybrid turbo setups.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cstyle\u003e.embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }\u003c\/style\u003e\n\u003cdiv class=\"embed-container\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/EkdknndQFZo?si=BKWTxrVScnqawmBs\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003e\u003cstrong\u003eEngineered Without Compromise\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory-Integrated Valves:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eElectronic valves tie directly into the OEM M1\/M2 drive modes for instant sound control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"font-size: 0.875rem;\"\u003eIndependent Control Option:\u003c\/strong\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eIncluded standalone controller for complete manual control of your exhaust valves.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Options:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eT304 Stainless Steel\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Extreme durability, resistance to corrosion, and a rich tone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"font-size: 0.875rem;\"\u003eGrade 5 Titanium\u003c\/strong\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e– Ultra-lightweight, sharper tone, and superior heat resistance.\u003c\/span\u003e\u003cstrong style=\"font-size: 0.875rem;\"\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"font-size: 0.875rem;\"\u003eTrue Cat-Back Performance:\u003c\/strong\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eComplete replacement of the factory cat-back for measurable gains in power, throttle response, and overall sound dynamics.\u003cbr\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cstyle\u003e.embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }\u003c\/style\u003e\n\u003cdiv class=\"embed-container\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/x_cThHGrMcM?si=UMkhmehOpSPZK2Gz\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eWhy Valvetronic Designs?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eWe don’t just build exhaust systems—we\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ecreate driving experiences\u003c\/strong\u003e. Every product we engineer is the result of relentless R\u0026amp;D, with a single mission: to give enthusiasts the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eultimate sound, performance, and quality\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWhether you choose the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eferocious Single Mid-Pipe System\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eor the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003esupercar-like Equal-Length Resonated System\u003c\/strong\u003e, you’ll be rewarded with an unparalleled auditory experience—turning every drive into an event.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBMW F97 X3M (2019–Present)\u003c\/li\u003e\n\u003cli\u003eBMW F98 X4M (2019–Present)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cstyle\u003e.embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; 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for strength and durability\u003c\/li\u003e\n\u003cli\u003e100% reversible—return to stock at any time\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Valvetronic","offers":[{"title":"Single Midpipe Design \/ Brushed T304 Stainless Steel \/ Brushed Steel (3.5 inch outlet)","offer_id":50457425215681,"sku":"BMW.F9X.X3M.VSES.BR.BRSH","price":3999.99,"currency_code":"USD","in_stock":true},{"title":"Single Midpipe Design \/ Brushed T304 Stainless Steel \/ Burnt (3.5 inch outlet)","offer_id":50457425248449,"sku":"BMW.F9X.X3M.VSES.BR.BRT","price":3999.99,"currency_code":"USD","in_stock":true},{"title":"Single Midpipe Design \/ Brushed T304 Stainless Steel \/ Black (3.5 inch outlet)","offer_id":50457425281217,"sku":"BMW.F9X.X3M.VSES.BR.BLK","price":3999.99,"currency_code":"USD","in_stock":true},{"title":"Single Midpipe Design \/ Brushed T304 Stainless Steel \/ Forged Carbon (3.5 inch 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