BMW Downpipes

F22 228i, F30/F31/F34 328i, F32 428i Supersprint Turbo Downpipe with ...

T#:184388

Part#: 987321

Ships in 4 Business Days

$ 2,295.00 USD

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$ 2,295.00 USD

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Active Autowerke S63 N63 A-Flow Catted Downpipes

For 2014+ model years only

T#:51075079

Part#: 11-041A

Ships in 4 Business Days

$ 2,279.00 USD

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$ 2,279.00 USD

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For the BMW owner seeking increased performance without the drawbacks of a "catless" system, the Active Autowerke Aflow Catted Downpipes offer the perfect solution. These downpipes feature high-flow metallic catalytic converters that are specifically designed to maintain exhaust efficiency while preventing the dreaded Check Engine Light (CEL). Unlike track-only pipes that can produce raw fuel odors and cabin drone, the Aflow series maintains a sophisticated, refined exhaust note suitable for a luxury daily driver. Each set is custom-made in-house to ensure an exact bolt-on fit, providing a reliable solution that satisfies both the driver’s demand for power and the vehicle’s onboard diagnostic requirements. Key Features: No CEL Guarantee: Advanced Aflow catalyst technology prevents catalytic efficiency dashboard warnings. Refined Exhaust Note: Provides an aggressive V8 growl while maintaining cabin comfort for daily use. Bolt-On Installation: No cutting or welding required; replaces the bulky factory units directly. Thermal Resilience: Built to withstand the high temperatures generated by the S63 and N63 twin-turbo engines. Safe for Occupants: Reduces harmful emissions and raw exhaust odors compared to catless alternatives. Specifications: Primary Material: Brushed 304 Stainless Steel Fitting: Direct OEM Replacement (Bolt-on) Manufacturing Location: Hand-made in Miami, FL Weight Reduction: Lighter than the heavy, ceramic-core factory catalytic converters Surface Finish: Natural Stainless Lead Time: Custom made-to-order (Approx. 2 weeks)

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ARMYTRIX Stainless Steel Downpipe - Sport Cat

T#:12643095

Part#: BMF43-CD

Ships on Oct 22, 2026

$ 1,764.00 USD

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$ 1,764.00 USD

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Downpipe W Active A-flow Cat - F3x/F87 M2

T#:51110147

Part#: 11-040A

Ships in 4 Business Days

$ 1,399.00 USD

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$ 1,399.00 USD

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Active Autowerke’s Aflow Catted Downpipe offers the perfect balance for the BMW owner who demands high performance but requires daily-driver refinement. Unlike track-only "straight pipes," the Aflow system utilizes a sophisticated metallic substrate catalytic converter that significantly reduces harmful emissions and raw fuel odors. This allows you to enjoy the power of a high-flow exhaust while maintaining a clean cabin environment and remaining OBD2 compliant. Each unit is custom-made in Miami and features cast upper flanges to ensure a factory-perfect, leak-free seal every time. Key Features: Clean Performance: High-flow catalyst virtually eliminates the raw fuel smell associated with aftermarket downpipes. Precision Engineering: Features a casted stainless steel upper V-band for a surgical fit against the turbo housing. OBD2 Compliance: Engineered to satisfy factory emissions monitors, keeping the dash clear of "Efficiency" codes. Refined Acoustics: Increases the exhaust volume under wide-open throttle while remaining quiet and sophisticated during highway cruising. Heat Management: Designed to withstand the intense thermal cycles of a high-output turbocharged engine. Specifications: Catalyst Cell Density: Optimized for high-flow performance and emissions scrubbing Fabrication: Hand-made in Miami, Florida, USA Inlet Type: Casted Stainless Steel V-Band Weight: Significantly lighter than the heavy factory ceramic catalytic converter Vehicle Fitment: * 2014–2016 BMW M235i (F22) 2012–2015 BMW 335i (F30/F31/F34) 2014–2016 BMW 435i (F32/F33/F36) 2016–2018 BMW M2 (F87 - N55 Engine Only)

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E71 X6 50i Supersprint Turbo Right Downpipe with Cat

T#:184263

Part#: 981721

Ships in 4 Business Days

$ 3,337.99 USD

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$ 3,337.99 USD

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Free ground shipping!

Supersprint exhaust is widely recognized as the leader in complete exhaust system upgrades - extremely high quality, well designed for optimal flow, and amazing sound. Even at a premium price Supersprint is an unbeatable exhaust system because every aspect is done to such a high level. A Supersprint exhaust rewards you with a terrific sound, long lasting construction and excellent fitment. The Supersprint sound is very 'European' which fits the sporting sophistication of BMWs perfectly. Most systems are also modular - sections can be added or removed to custom tailor the exhaust sound to your preferance. Aside from 'Race' systems, their mufflers meet European noise laws so you get a refined and tuned sound without being excessively loud. Most Supersprint systems are built with larger diameter piping to improve exhaust flow which helps the engine do less work and make more horsepower! Supersprint exhausts generally run at a premium over other systems but no other system on the market can match their quality, performance, or reputation!

NOTE: Supersprint engineers and manufactures complete exhaust systems. This part was designed to be used with the rest of the Supersprint system on this car but may be used on its own. Contact us for more details.

This product modifies (but does not remove or defeat) emissions equipment. For this reason this product may not be CARB compliant, and therefore not emissions legal in some states. Consult local laws and regulations in your area. For more information on this product, feel free to contact our sales department.

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Supersprint BMW F20 / F21 M135i (320 Hp) 2012 -> 2014 Downpipe kit + ...

T#:588155

Part#: 988541

Ships in 4 Business Days

$ 3,087.99 USD

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$ 3,087.99 USD

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Downpipes W Active A-flow Cats - F10/F12 M5/M6

T#:51110145

Part#: 11-093A

Ships in 4 Business Days

$ 2,279.00 USD

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$ 2,279.00 USD

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Efficiency in a forced-induction engine is determined by the pressure differential across the turbine wheel. Active Autowerke's Aflow Catted Downpipes maximize this differential by utilizing a streamlined, low-restriction design. Each set is hand-made from premium 304 stainless steel and features furnace-braised substrates for maximum longevity under the extreme temperatures of the "hot-V" turbo configuration. The integrated 400-cell catalytic converters reach operational efficiency within just 9 seconds of startup, ensuring the system meets modern OBD2 requirements while supporting up to 800 HP without a loss in performance. Key Features: Precision Fitment: Each unit is meticulously TIG-welded and checked against master jigs to guarantee a perfect bolt-on installation with no cutting or welding. EPA Compliant: 49-state EPA registered and fully OBD2 compliant (Excludes California). Thermal Management: Engineered to reduce radiant heat in the engine bay compared to restrictive factory units. High-Flow Catalyst Substrate: 304 stainless steel substrate furnace-braised to the mantle for outstanding vibration and heat resistance. Comprehensive Protection: Covered by a 5-year/50,000-mile structural warranty and a 2-year core warranty. Specifications: Inlet Type: Precision-casted 3.5" Stainless Steel V-Band Outlet Diameter: 3.0" Mandrel-Bent Tubing Catalyst Matrix: 400 Cells Per Square Inch Operating Temperature: Tested to withstand up to 1,500°F Vehicle Fitment: * 2011–2016 BMW M5 (F10) 2012–2018 BMW M6 Coupe / Convertible / Gran Coupe (F12/F13/F06) Custom Build Time: Typically made-to-order (Approx. 2-week lead time)

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Supersprint Section 2 X-Pipe

T#:351480

Part#: 985513

Ships in 4 Business Days

$ 1,401.99 USD

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$ 1,401.99 USD

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100% handcrafted in Italy. Stainless steel construction. Legendary sound!

Hi-Flow Sports Catted Downpipes - F80/F82

Requires Milltek Catback Exhaust

T#:593561

Part#: SSXBM1127

Ships on Oct 22, 2026

Sale - Save 10% $ 2,584.99

This product was last offered at the strikethrough price on
09-18-2026

$ 2,325.65 USD

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Sale - Save 10%

$ 2,584.99

This product was last offered at the strikethrough price on
09-18-2026

$ 2,325.65 USD

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With in-house production and engineering in the United Kingdom, they have been designing and developing exhaust systems for over 32 years. This experience has helped put Milltek on the map when it comes to performance exhausts, with offerings that range from Audi/Volkswagen to Porsche, BMW, and even Bentley. But, they don't stop there. Milltek has also made its presence felt in the motorsport community. Through partnerships with various race teams throughout the world, Milltek has gathered feedback on ways to improve their systems from enthusiasts at every level. Constructed of type-304 aircraft grade stainless steel, the quality is top-notch. To take it a step further, Milltek offers a lifetime warranty to the original purchaser.

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Active Autowerke GESI Catted Downpipes - S63 N63

T#:397488

Part#: 11-041

Ships in 4 Business Days

5% off MSRP $ 2,999.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 2,849.99 USD

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5% off MSRP

$ 2,999.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 2,849.99 USD

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Active Autowerke is proud to bring you our hand made Signature S63/N63 Downpipes for the twin-turbo V8 BMW X5M, X6M, 550i, 650i, X5, X6 models. This variant includes a pair of 4.5" ultra high flow GESI catalytic converter that will NOT produce a CEL!

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Active Autowerke GESI Catted Downpipes - G90 M5

T#:51285673

Part#: 11-142

Ships on Oct 16, 2026

$ 3,324.00 USD

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$ 3,324.00 USD

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For the owner of the G90 M5 who demands both high performance and environmental responsibility, Active Autowerke offers the GESI Catted Downpipes. These units feature genuine GESi G-Sport Ultra High Output Catalytic Converters, which are EPA-registered and fully OBD2 compliant (excluding California). Utilizing proprietary precious metal loading, these 400-cell catalysts reach operational efficiency within just 9 seconds of startup, drastically reducing emissions and eliminating the raw fuel smell common with catless systems. Hand-made in Miami, FL, and constructed from heavy-duty 304 stainless steel, these downpipes provide a durable, high-quality performance upgrade that integrates seamlessly with factory mounting points. Key Features: EPA Registered & Compliant: 49-state legal and fully OBD2 compliant for 1996+ vehicles. Cast Stainless V-Bands: Features precision-casted upper V-bands for a perfect, leak-free seal to the turbochargers. Reduced Radiant Heat: Lowering backpressure helps pull heat away from the turbochargers and engine components. Precision Fabrication: Meticulously TIG welded and test-fitted on a dedicated G90 M5 fixture. Standard-Setting Reliability: The 304 stainless substrate is furnace-braised to the mantle for outstanding resistance to vibration. Specifications: SKU: 11-142. Inlet Type: Precision Casted Stainless V-Band. Substrate: Metal core 400 CPSI catalyst. Warranty: 5-year/50,000-mile warranty on shell/tube ends; 2-year/25,000-mile on catalyst core (void if excessive burble tune is used). Manufacturing: Made in Miami, Florida, USA. Vehicle Fitment: 2025+ BMW M5 (G90 Sedan and G99 Touring) with the S68 V8 Hybrid engine.

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Active Autowerke S63 N63 A-Flow Catted Downpipes

T#:51110136

Part#: 11-041AB

Ships in 4 Business Days

$ 2,279.00 USD

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$ 2,279.00 USD

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Active Autowerke’s Aflow Catted Downpipes provide a "no-compromise" solution for the G-body enthusiast who wants high-flow performance without the drawbacks of a track-only "catless" setup. These downpipes feature advanced metallic high-flow catalysts that satisfy onboard diagnostic requirements, meaning you can enjoy increased power without the headache of a Check Engine Light (CEL). By utilizing premium 304 stainless steel and a low-restriction design, these pipes are built to withstand the intense thermal cycles of a twin-turbo V8 while delivering a deep, aggressive exhaust note. This variant is a true bolt-on upgrade that preserves the daily driveability and luxury experience of your BMW while significantly improving its performance ceiling. Key Features: No CEL Operation: Engineered to work with factory emissions monitors for a dashboard-clear experience. Streamlined Exhaust Path: Mandrel-bent 3" piping with minimal bends for smooth, high-velocity exhaust gas flow. Precision Fitment: Developed through extensive R&D to provide a factory-like bolt-on installation. Hand-Made in the USA: Fabricated in-house at Active Autowerke’s Miami facility to ensure surgical quality control. Vibration Resistance: Robust TIG welding and heavy-duty brackets ensure longevity even under aggressive driving conditions. Specifications: Primary Material: Brushed 304 Stainless Steel. Inlet/Outlet: Precision cast V-band inlet and direct-fit outlet. Flow Rating: Significantly higher CFM than restrictive factory ceramic converters. Installation: 100% Bolt-on; no cutting or welding required. Finish: Natural Stainless. Lead Time: Typically custom made-to-order (Approx. 2-week build time).

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BMW F90 M5 Black Series Lower Downpipe Set With Ceramic Black Coating...

T#:584686

Part#: B5555.2DP2.BKT

Back Ordered

$ 2,995.00 USD

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$ 2,995.00 USD

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Improved power and throttle response

Supersprint Section 1 Straight Pipes

T#:351397

Part#: 985512

Ships on Jan 11, 2027

$ 1,425.99 USD

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$ 1,425.99 USD

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100% handcrafted in Italy. Stainless steel construction. Legendary sound!

Active Autowerke Signature Active Aflow Catted Downpipe - A90/A91 Sup...

Please call in with VIN before purchase

T#:51426472

Part#: 11-564A

Ships on Oct 16, 2026

$ 1,399.00 USD

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$ 1,399.00 USD

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For Supra owners who demand professional-grade performance without the legal and olfactory drawbacks of a catless system, Active Autowerke incorporates the industry's most advanced catalytic technology. This downpipe uses either the GESi G-Sport UHO or the Active Aflow catalyst, both of which are EPA registered and 49-state legal. These catalysts reach operational efficiency within just 9 seconds of startup, ensuring that your vehicle remains OBD2 compliant during emissions testing. By eliminating the "Check Engine Light" without the use of O2 spacers or software hacks, this downpipe remains a reliable choice for street-driven vehicles that see frequent track use. Key Features OBD2 Compliance: Fully compliant with onboard diagnostic systems (1996 and newer) for a worry-free ownership experience. 400 Cell Substrate: Strikes the perfect balance between high-velocity exhaust flow and effective emissions reduction. Thermal Efficiency: Rapid light-off time (approx. 9 seconds) ensures the cat is functioning almost immediately upon engine start. Durability: Substrate is furnace-brazed to the mantle, preventing the internal core from shifting or breaking under high-boost vibration. Miami Made: Proudly designed and hand-built in Miami, Florida, ensuring high-tier American manufacturing quality. Specifications Vehicle Fitment: 2020–2024 Toyota Supra (A90/A91) 3.0L B58 Engine. Catalyst Type: 4.5" GESi UHO-Series Gen 2 / Active Aflow. Cell Density: 400 Cells Per Square Inch. Taper Profile: 4.5" Turbo Connection → 3.5" Flex Section → 80mm OEM Outlet. Warranty: 5-Year / 50,000-Mile warranty on the shell/ends; 2-Year / 25,000-Mile on the catalyst core. Legal Status: EPA Compliant (49-State Legal; Not CARB registered for California).

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Active Autowerke Catted Downpipes - F10/F12 M5/M6 S63

T#:51075064

Part#: 11-093

Ships in 4 Business Days

$ 2,849.00 USD

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$ 2,849.00 USD

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The Active Autowerke Signature GESI Catted Downpipes offer the perfect balance of raw performance and street-legal refinement. Unlike "catless" alternatives that cause unpleasant fuel odors and dashboard error lights, this system utilizes EPA-registered GESI high-flow catalytic converters. These proprietary converters use precious metal loading technology to significantly reduce emissions, ensuring your BMW remains OBD2 compliant and "Check Engine Light" free. Designed as a direct bolt-on replacement for F-Chassis BMW X5M, X6M, and 550i/650i models, these downpipes feature cast upper stainless steel V-bands for a factory-perfect seal. Whether you are cruising or under wide-open throttle, the system maintains a sophisticated exhaust note while safely protecting both passengers and the environment from harmful fumes. Key Features: NO CEL Guarantee: Advanced GESI technology ensures no catalytic efficiency codes under normal operation. Refined Sound & Scent: Eliminates the "raw fuel" odor associated with track-only downpipes. 49-State Legal: EPA registered and fully OBD2 compliant (excludes California). Precision Fitment: Cast upper V-bands ensure a leak-free connection to the turbo housing. OEM Integration: Easily bolts on with no cutting, welding, or permanent vehicle modification required. Specifications: Construction: Heavy-duty 304 Stainless Steel Inlet Connection: Precision-cast V-Band flange Catalyst Size: 4.5-inch Ultra High Flow unit Efficiency: Reaches full efficiency in under 10 seconds from cold start Compliance: Fully OBD2 compliant (1996 and newer vehicles) Application Note: Requires VIN for fitment verification; not compatible with G-chassis N63B engines.

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Milltek Sport - Large Bore Downpipes And Hi-Flow Sports Cats - F87 M2...

T#:591375

Part#: SSXBM1093

Ships on Oct 22, 2026

Sale - Save 10% $ 2,179.00

This product was last offered at the strikethrough price on
09-18-2026

$ 1,961.10 USD

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Sale - Save 10%

$ 2,179.00

This product was last offered at the strikethrough price on
09-18-2026

$ 1,961.10 USD

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With in-house production and engineering in the United Kingdom, they have been designing and developing exhaust systems for over 32 years. This experience has helped put Milltek on the map when it comes to performance exhausts, with offerings that range from Audi/Volkswagen to Porsche, BMW, and even Bentley. But, they don't stop there. Milltek has also made its presence felt in the motorsport community. Through partnerships with various race teams throughout the world, Milltek has gathered feedback on ways to improve their systems from enthusiasts at every level. Constructed of type-304 aircraft grade stainless steel, the quality is top-notch. To take it a step further, Milltek offers a lifetime warranty to the original purchaser.

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Catalytic Converter / Downpipe Hardware Kit

T#:575017

Part#: R56SDOWNPIPEKT

Ships in 1-2 days

$ 142.99

This product was last offered at the strikethrough price on
08-28-2026

$ 141.99 USD

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$ 141.99 USD

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Genuine BMW Exhaust Exhaust Pipes 18111245203

T#:7483

Part#: 18111245203

Ships in 8 Business Days

6% off MSRP $ 289.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 271.99 USD

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6% off MSRP

$ 289.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 271.99 USD

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The exhaust on your car goes through lots of high-wear situations. Constant temp changes from cold to extreme heat. Climate-depending can be exposed to corrosive road salt and other chemicals and over time can rust and leak. Replace these at any sign of cracking or leaking to ensure the best performance of your vehicle.

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VRSF Downpipe Upgrade with Catalytic Converter & Heat Shield - F22/23...

T#:42369337

Part#: 10582028

Ships in 2 Business Days

$ 579.99 USD

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$ 579.99 USD

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Reduce back-pressure by upgrading the restrictive catalytic converter in the factory downpipe. Expect an increase in power as well as a more aggressive exhaust tone. This downpipe is handcrafted from 4.5" 304-grade stainless steel with smooth radius bends to decrease turbulence and flow. VRSF offers high-quality products at an exceptional value, including a 1-year limited warranty.

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Direct Fit Catalytic Converter Replacement

T#:640223

Part#: 47-46306

Back Ordered

$ 1,049.00 USD

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$ 1,049.00 USD

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OEM Grade Direct-Fit Catalytic Converter / Downpipe

T#:35829306

Part#: 52929

Back Ordered

$ 943.00 USD

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$ 943.00 USD

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Akrapovic Catted Downpipe Upgrade - B58

T#:2617093

Part#: DP-BM/SS/5/H

Back Ordered

$ 2,898.99 USD

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$ 2,898.99 USD

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Delivering great sound, without creating unwanted cabin noise, these beautifully-crafted downpipes offer an upgrade to Akrapovič’s Evolution exhaust system.

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SELECT YOUR BMW

F22 228i, F30/F31/F34 328i, F32 428i Supersprint Turbo Downpipe with ...

Active Autowerke S63 N63 A-Flow Catted Downpipes

ARMYTRIX Stainless Steel Downpipe - Sport Cat

Downpipe W Active A-flow Cat - F3x/F87 M2

E71 X6 50i Supersprint Turbo Right Downpipe with Cat

Supersprint BMW F20 / F21 M135i (320 Hp) 2012 -> 2014 Downpipe kit + ...

Downpipes W Active A-flow Cats - F10/F12 M5/M6

Supersprint Section 2 X-Pipe

Hi-Flow Sports Catted Downpipes - F80/F82

Active Autowerke GESI Catted Downpipes - S63 N63

Active Autowerke GESI Catted Downpipes - G90 M5

Active Autowerke S63 N63 A-Flow Catted Downpipes

BMW F90 M5 Black Series Lower Downpipe Set With Ceramic Black Coating...

Supersprint Section 1 Straight Pipes

Active Autowerke Signature Active Aflow Catted Downpipe - A90/A91 Sup...

Active Autowerke Catted Downpipes - F10/F12 M5/M6 S63

Milltek Sport - Large Bore Downpipes And Hi-Flow Sports Cats - F87 M2...

Catalytic Converter / Downpipe Hardware Kit

Genuine BMW Exhaust Exhaust Pipes 18111245203

VRSF Downpipe Upgrade with Catalytic Converter & Heat Shield - F22/23...

Direct Fit Catalytic Converter Replacement

OEM Grade Direct-Fit Catalytic Converter / Downpipe

Akrapovic Catted Downpipe Upgrade - B58

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