BMW 3 Series G20 (2019+)

Active Autowerke AFlow Catted Downpipe - B58N G20/G22 M340/M440i ...

For 2025+ model year vehicles -- Please call in with vin prior to purchase

T#:51426483

Part#: 11-062GA

Ships in 10 Business Days

$ 1,899.00 USD

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$ 1,899.00 USD

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Active Autowerke brings professional-grade emissions technology to the 2025+ BMW G-Chassis with the AFlow Catted Downpipe. This system utilizes the advanced Active AFlow Super High Output Catalytic Converter, which is EPA registered and 49-state legal. By employing an ultra-high-flow 400 Cell Per Square Inch (CPSI) substrate, this downpipe provides the flow characteristics of a race-pipe while maintaining full OBD2 compliance. The catalyst is designed to reach operational efficiency within just 9 seconds of startup, ensuring that emissions standards are met quickly. This is the premier choice for enthusiasts seeking a refined exhaust note and increased power without the raw fuel smell or environmental concerns of a catless system. Key Features: Active AFlow 400 CPSI Catalyst: High-density 304 stainless steel substrate furnace-brazed to the mantle for extreme durability under high boost. Rapid Light-Off Time: Achieves operational efficiency within approximately 9 seconds of engine start. Forced Induction Optimized: Specifically rated to handle high-boost applications with zero loss in horsepower. Thermal Management: Engineered to withstand internal exhaust gas temperatures (EGTs) up to 1500°F. Environmentally Conscious: Effectively reduces harmful emissions and noise, protecting both passengers and the ecosystem. Specifications: Vehicle Fitment: 2025+ BMW M340i and M440i (G20/G22 Chassis). Catalyst Cell Density: 400 Cells Per Square Inch (CPSI). Catalyst Substrate: Full 304 Stainless Steel. Warranty: 5-Year/50,000-Mile on shell/ends; 2-Year/25,000-Mile on the catalytic core (Voided by "excessive burble" tunes). Compliance: EPA Registered / 49-State Legal (Not CARB registered for California).

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M340i Valved Rear Exhaust W Black Tips

T#:51110155

Part#: 11-089B

Ships in 10 Business Days

$ 1,956.99 USD

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$ 1,956.99 USD

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Awaken the B58: Active Autowerke G20 M340i / G22 M440i Valved Axle-Back Exhaust From the factory, the G-series M340i and M440i are notoriously quiet, leaving the sonorous B58 inline-six feeling a bit muffled. Active Autowerke’s valved rear exhaust is the solution for enthusiasts who want to bridge the gap between "daily driver" and "motorsport-inspired." This axle-back system was engineered to replace the lackluster stock muffler with a high-flow, 304 stainless steel unit that captures a deep, hearty growl worthy of the BMW 'M' badge. By reusing the factory valve actuator, this system keeps your driving modes functional—providing a refined tone for the commute and a rowdy, unrestricted bark when you’re in the mood to let it rip. It’s the perfect "OEM+" upgrade that delivers the aggressive sound your BMW should have arrived with. Engineering & Tone Active Autowerke spent months fine-tuning the resonance of this system to ensure it provides a low-frequency rumble without the high-pitched rasp found in cheaper alternatives. Valved Versatility: Retains full integration with your factory BMW drive modes (Eco, Comfort, Sport). High-Flow Design: Maximizes exhaust gas scavenging for improved throttle response and midrange punch. Aggressive Styling: Available with quad tips to fill out the rear diffuser and provide a menacing track-ready look. Key Features: Hand-Built Quality: Fabricated in the USA from premium T304 Stainless Steel. Precision Fitment: Every unit is test-fitted on a dedicated G-series fixture to guarantee a perfect bolt-on install. Motorsport-Inspired Sound: Replaces the whisper-quiet factory muffler with a deep, throaty signature note. All-Inclusive Kit: Includes all necessary clamps and hardware for a straightforward installation. Specifications: Material: Mandrel-bent 304 Stainless Steel Type: Valved Axle-Back (Requires cutting of factory mid-pipe for installation) Valve Operation: Compatible with OEM BMW actuator Vehicle Fitment: * 2019+ BMW M340i / M340i xDrive (G20) 2021+ BMW M440i / M440i xDrive (G22/G23/G26)

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M340i Valved Rear Exhaust W Carbon Tips

T#:51110154

Part#: 11-089C

Ships in 10 Business Days

$ 2,374.99 USD

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$ 2,374.99 USD

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Awaken the B58: Active Autowerke G20 M340i / G22 M440i Valved Axle-Back Exhaust From the factory, the G-series M340i and M440i are notoriously quiet, leaving the sonorous B58 inline-six feeling a bit muffled. Active Autowerke’s valved rear exhaust is the solution for enthusiasts who want to bridge the gap between "daily driver" and "motorsport-inspired." This axle-back system was engineered to replace the lackluster stock muffler with a high-flow, 304 stainless steel unit that captures a deep, hearty growl worthy of the BMW 'M' badge. By reusing the factory valve actuator, this system keeps your driving modes functional—providing a refined tone for the commute and a rowdy, unrestricted bark when you’re in the mood to let it rip. It’s the perfect "OEM+" upgrade that delivers the aggressive sound your BMW should have arrived with. Engineering & Tone Active Autowerke spent months fine-tuning the resonance of this system to ensure it provides a low-frequency rumble without the high-pitched rasp found in cheaper alternatives. Valved Versatility: Retains full integration with your factory BMW drive modes (Eco, Comfort, Sport). High-Flow Design: Maximizes exhaust gas scavenging for improved throttle response and midrange punch. Aggressive Styling: Available with quad tips to fill out the rear diffuser and provide a menacing track-ready look. Key Features: Hand-Built Quality: Fabricated in the USA from premium T304 Stainless Steel. Precision Fitment: Every unit is test-fitted on a dedicated G-series fixture to guarantee a perfect bolt-on install. Motorsport-Inspired Sound: Replaces the whisper-quiet factory muffler with a deep, throaty signature note. All-Inclusive Kit: Includes all necessary clamps and hardware for a straightforward installation. Specifications: Material: Mandrel-bent 304 Stainless Steel Type: Valved Axle-Back (Requires cutting of factory mid-pipe for installation) Valve Operation: Compatible with OEM BMW actuator Vehicle Fitment: * 2019+ BMW M340i / M340i xDrive (G20) 2021+ BMW M440i / M440i xDrive (G22/G23/G26)

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Active Autowerke GESI Catted Downpipe - B58N M340i/440i

For Model Years 2025+

For Model Years 2025+ - Please call in with vin prior to purchase

T#:51320822

Part#: 11-062G

Ships in 10 Business Days

$ 2,374.00 USD

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Qty

$ 2,374.00 USD

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For the owner of a brand new 2025+ M340i or M440i, Active Autowerke provides a "no-compromise" performance upgrade that prioritizes durability and emissions compliance. This downpipe features an integrated GESI G-Sport catalytic converter, which is EPA-registered and fully OBD2 compliant (excluding California). These high-flow units use proprietary precious metal loading to reduce harmful emissions and eliminate the raw fuel odors common with "catless" systems. The 400-cell stainless steel substrate is furnace-braised to the mantle for outstanding resistance to vibration and thermal shock, ensuring that your performance gains remain trouble-free over the life of the vehicle.Key Features:49-State Legal: EPA-registered and fully OBD2 compliant (Excludes California).Cast V-Band Flange: Precision-casted upper stainless steel V-band for a factory-perfect, leak-free seal to the turbocharger.Fast Light-Off: Reaches operational efficiency within just 9 seconds of startup, satisfying factory emissions monitors.Industrial Grade Materials: Full 304 stainless steel construction ensures maximum resistance to heat and corrosion.Warranty Protected: Covered by a 5-year/50,000-mile structural warranty and a 2-year/25,000-mile catalyst core warranty.*Specifications:SKU: 11-063NConstruction: TIG-welded heavy-gauge 304 StainlessCatalyst Size: 4.5" Diameter High-Flow CorePower Capacity: Engineered for high-output setups (up to 850 HP)Compatibility: Integrates with factory O2 sensors and mounting pointsVehicle Fitment: * 2025+ BMW M340i / M340i xDrive (G20)2025+ BMW M440i / M440i xDrive (G22/G23/G26)

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Active Autowerke AFlow Catted Downpipe - B58N G20/G22 M340/M440i ...

M340i Valved Rear Exhaust W Black Tips

M340i Valved Rear Exhaust W Carbon Tips

Active Autowerke GESI Catted Downpipe - B58N M340i/440i

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