BMW X6 M S63 4.4L

Active Autowerke A-Flow Catted Downpipes - S63/N63

For Model Years 2010-2012 Only

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For Model Years 2010-2012 Only

T#:51110141

Part#: 11-041AF

Ships in 3 Business Days

$ 2,279.00 USD

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$ 2,279.00 USD

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For the BMW enthusiast seeking an aggressive upgrade for their 2010–2012 X5M or X6M without the drawbacks of "stinky" exhaust or frequent error codes, Active Autowerke offers the Aflow Catted Downpipes. These units provide the performance benefits typically associated with track-only pipes while maintaining high-flow catalytic efficiency. This design prevents the raw fuel odor and excessive cabin drone often found in catless setups, making them the ideal choice for a performance-oriented daily driver. Each set is custom-made in Miami, ensuring an exact, surgical fit to the factory mounting points. By utilizing high-quality casted V-band flanges and premium materials, these downpipes offer a reliable, leak-free solution that enhances the sophisticated V8 exhaust note without triggering the Check Engine Light (CEL). Key Features: No CEL Guarantee: Advanced Aflow catalyst design avoids catalytic efficiency warnings on the dashboard. Refined Exhaust Note: Enhances the natural V8 growl while maintaining high-end luxury refinement. Cast V-Band Connections: Precision upper flanges ensure a perfect, factory-like seal to the turbo housing. Direct Bolt-On: Replaces bulky OEM ceramic converters with no cutting or welding required. Thermal Management: Efficiently handles the high heat output of the BMW twin-turbo V8 platform. U.S. Manufacturing: Fabricated in-house to meet Active Autowerke’s high standards of quality control. Specifications: Primary Material: TIG-Welded 304 Stainless Steel. Manufacturing Location: Miami, FL, USA. Inlet Type: Casted Stainless Steel Flange. Weight Reduction: Significantly lighter than the heavy factory ceramic catalytic assemblies. Finish: Industrial brushed stainless. Build Time: Custom made-to-order (Approx. 2 weeks).

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Extended Wheel Bolt - M12x1.5 - 35mm

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T#:50899204

Part#: BFI-906-LUG

Ships on Jul 31, 2026

$ 4.99 USD

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$ 4.99 USD

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Specifically engineered for vehicles utilizing a wheel stud conversion.

AST Suspension Adjustable Lowering Springs - BMW F95/F96 2020+ X5M X6...

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T#:49857444

Part#: ASTALS-21-012

In Stock at Vendor

10% off MSRP $ 1,480.00

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

$ 1,332.00 USD

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10% off MSRP

$ 1,480.00

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

$ 1,332.00 USD

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AST Adjustable Lowering Springs (ALS) are a great alternative to traditional lowering springs as they allow for a range of adjustment, not a fixed ride height. This is perfect for someone looking to dial in the exact ride height desired on their BMW.

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BFI GS1 Billet / Air Leather Shift Knob - Black / Gold - BMW Fitment ...

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T#:50934273

Part#: GS1-70101-4

Ships on Jul 31, 2026

$ 164.99 USD

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$ 164.99 USD

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The Black Forest Industries GS1 shift knob is engineered specifically for the BMW driver who wants a more mechanical connection to their transmission.

GS2 Air Leather Shift Knob - Blue / Silver Leaf - BMW Fitment ...

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T#:50934282

Part#: GS2-70103-1

Ships on Jul 31, 2026

$ 184.99 USD

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$ 184.99 USD

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This Blue and Silver combination looks incredible in cars with the "M" tri-color stitching on the steering wheel, highlighting the blue thread perfectly.

BFI GS1 Billet / Air Leather Shift Knob - Black / Silver - BMW Fitmen...

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T#:50934271

Part#: GS1-70101-2

Ships on Jul 31, 2026

$ 164.99 USD

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$ 164.99 USD

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The BFI GS1 is the perfect upgrade for the BMW enthusiast who demands better tactile feedback.

BFI GS2 Air Leather Shift Knob - Black / Silver Leaf - BMW Fitment ...

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T#:50934276

Part#: GS2-70101-2

Ships on Jul 31, 2026

$ 184.99 USD

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$ 184.99 USD

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The Black Forest Industries GS2 is the ideal choice for the BMW owner who demands both style and substance.

Black Forest Industries GS2 Air Leather Shift Knob - Black / Red Leaf...

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T#:50934280

Part#: GS2-70101-5

Ships on Jul 31, 2026

$ 184.99 USD

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$ 184.99 USD

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The GS2 utilizes a solid billet aluminum core to provide a dense, mechanical connection to your transmission.

Black Forest Industries Extended Wheel Bolt - M14x1.25 - 40mm ...

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T#:50899207

Part#: BFI-905-LUG

Ships on Jul 31, 2026

$ 4.99 USD

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$ 4.99 USD

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Specifically designed for use with 10mm to 15mm wheel spacers to maintain proper thread reach.

Black Forest Industries GS1 Alcantara Shift Knob - Black / Silver Lea...

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T#:50934274

Part#: GS1-BMW-ALC

Ships on Jul 31, 2026

$ 174.99 USD

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$ 174.99 USD

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Elevate your M-Performance interior with the Black Forest Industries GS1 Alcantara Edition.

Active Autowerke S63 N63 A-Flow Catted Downpipes

For 2014+ model years only

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For 2014+ model years only

T#:51075079

Part#: 11-041A

Ships in 3 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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Black Forest Industries GS2 Air Leather Shift Knob - Red / Silver Lea...

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T#:50934281

Part#: GS2-70102-1

Ships on Jul 31, 2026

$ 184.99 USD

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$ 184.99 USD

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Precision meets bold design.

Active Autowerke S63 N63 A-Flow Catted Downpipes

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T#:51110136

Part#: 11-041AB

Ships in 3 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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GS2 Air Leather Shift Knob - Black / Gold Leaf - BMW Fitment ...

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T#:50934279

Part#: GS2-70101-4

Ships on Jul 31, 2026

$ 184.99 USD

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$ 184.99 USD

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Precision meets prestige with the Black Forest Industries GS2 Knob.

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Active Autowerke A-Flow Catted Downpipes - S63/N63

Extended Wheel Bolt - M12x1.5 - 35mm

AST Suspension Adjustable Lowering Springs - BMW F95/F96 2020+ X5M X6...

BFI GS1 Billet / Air Leather Shift Knob - Black / Gold - BMW Fitment ...

GS2 Air Leather Shift Knob - Blue / Silver Leaf - BMW Fitment ...

BFI GS1 Billet / Air Leather Shift Knob - Black / Silver - BMW Fitmen...

BFI GS2 Air Leather Shift Knob - Black / Silver Leaf - BMW Fitment ...

Black Forest Industries GS2 Air Leather Shift Knob - Black / Red Leaf...

Black Forest Industries Extended Wheel Bolt - M14x1.25 - 40mm ...

Black Forest Industries GS1 Alcantara Shift Knob - Black / Silver Lea...

Active Autowerke S63 N63 A-Flow Catted Downpipes

Black Forest Industries GS2 Air Leather Shift Knob - Red / Silver Lea...

Active Autowerke S63 N63 A-Flow Catted Downpipes

GS2 Air Leather Shift Knob - Black / Gold Leaf - BMW Fitment ...

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