BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW X6 M S63 4.4L

Titanium Exhaust Wrap - 2" X 25'

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T#:385025

Part#: HEA-WRAPKIT-25

Ships in 1 Business Day

$ 29.99 USD

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Constructed for durability with a tight weave, this heat wrap is designed to maintain proper thermal properties in your vehicles exhaust system. This material was hand selected specifically for it's heat characteristics and flexibility. Fiberglass is rated for 1200 degrees, however, this titanium wrap can withstand 1800 degrees!

Key Features:

2" wide x 1/16" thick
Durable, tightly woven, 100% fiberglass
Reduce under hood temperatures
Protect other engine components
Protect your hands/arms from burns
Each roll comes with 5 FREE, 14" long stainless steel zip ties

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BMW N54 N55 N63 S63 HJS V-Band Exhaust Clamp - Priced Each

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T#:396285

Part#: 11657620508

In Stock

$ 20.99 USD

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$ 20.99 USD

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BMW N54 N55 N63 S63 HJS V-Band Exhaust Clamp - Priced Each is designed for superior performance and reliability in exhaust system maintenance and upgrades. Engineered by Turner Motorsport, this high-quality clamp ensures a secure and leak-free connection in your BMW's exhaust system.

Durable Construction: Made from premium materials to withstand high temperatures and harsh conditions, ensuring long-lasting performance.
Precision Fit: Designed to fit perfectly with BMW N54, N55, N63, and S63 engines, offering a secure and reliable seal.
Improved Exhaust Efficiency: Prevents leaks and maintains optimal exhaust flow, contributing to better engine performance and efficiency.
Easy Installation: The V-band design allows for quick and easy installation or removal, simplifying exhaust system maintenance.
Versatile Use: Ideal for both performance upgrades and routine repairs, making it a valuable addition to any BMW enthusiast's toolkit.

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Prosport Titanium Exhaust Wrap - 2" x 50

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T#:385019

Part#: HEA-WRAPKIT-50

Ships on Aug 3, 2026

$ 49.99 USD

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$ 49.99 USD

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Constructed for durability with a tight weave, this heat wrap is designed to maintain proper thermal properties in your vehicles exhaust system. This material was hand selected specifically for it's heat characteristics and flexibility. Fiberglass is rated for 1200 degrees, however, this titanium wrap can withstand 1800 degrees!

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Exhaust Sleeve With Dual Clamps - Priced Each

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T#:2423575

Part#: 1K0253141N

In Stock

18% off MSRP $ 34.20

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

$ 27.99 USD

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18% off MSRP

$ 34.20

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

$ 27.99 USD

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Commonly found between mid-pipe and front muffler. 60x95mm

Prosport Gold Heat Reflective Tape - 2" x 15'

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T#:385020

Part#: HEA-GWRAP-15

Back Ordered

$ 33.99 USD

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$ 33.99 USD

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Constructed of laminated light-weight glass cloth, this gold reflective heat tape is designed to reflect 80% of radiant heat. With excellent pliability, this tape is easy to install. It's as simple as peel and stick.

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Prosport Fiberglass Exhaust Wrap - Black - 2" x 50'

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T#:385018

Part#: HEA-WRAPKIT-BLK

Ships in 1 Business Day

$ 28.00 USD

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$ 28.00 USD

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Constructed of durable, tight-woven fiberglass, this heat wrap is designed to maintain proper thermal properties in your vehicles exhaust system. This material was hand selected specifically for it's heat characteristics and flexibility.

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Prosport Fiberglass Exhaust Wrap - White - 2" x 50'

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T#:385017

Part#: HEA-WRAPKIT-WHT

In Stock at Vendor

$ 31.99 USD

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$ 31.99 USD

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Constructed of durable, tight-woven fiberglass, this heat wrap is designed to maintain proper thermal properties in your vehicles exhaust system. This material was hand selected specifically for it's heat characteristics and flexibility.

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Active Autowerke F90 M5/M8 X5M/X6M Aflow Catted Downpipes

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These catalytic converters are not legal for use on vehicles registered in the state of California as a result of California Vehicle Code Section 27156 and 38391.

T#:40038643

Part#: 11-063A

Ships in 3 Business Days

5% off MSRP $ 2,399.00

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

$ 2,279.99 USD

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5% off MSRP

$ 2,399.00

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

$ 2,279.99 USD

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The Active Aflow Catalytic Converters are rated for engines putting out up to 800 horsepower while maintaining a high flow capacity.

Active Autowerke High Flow Catted Downpipes - S63

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T#:2393421

Part#: 11-063

Ships in 10 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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For over 30 years, Active Autowerke has been the one to turn to for high quality BMW performance products. Committed to enhancing the performance of BMWs through the highest quality products is what Active Autowerke is all about. These S63 downpipes are strategically engineered to virtually eliminate the immensely restrictive characteristics of the factory M5 downpipes therefore reducing radiant heat and increasing performance. Features: NO CEL when using this downpipe GESI EPA registered high flow and fully OBD2 compliant Casted upper stainless steel V-Band for precise fitment 4.50" diameter piping allows for maximum power output Quicker turbo spool Rated for 500 to 850 hp applications Withstands up to 1500 F Can reach operational efficiency within 9 seconds of startup Easily bolts-on no cutting or welding required Accepts OEM O2 sensor heat shield Durable construction from TIG welded 304 stainless steel Precise fitment Ultra high flow 400 cell per square inch catalyst EPA compliant for use on OBD2 vehicles (1996 and newer) except in California 304 stainless steel substrate is furnace braised to the mantle for outstanding durability GESi proprietary precious metal loading technology ensures greatly reduced emissions Ideal for Forced Induction Applications with no loss of HP Both passengers and drivers are safe from harmful emissions and noise Covered by 5 Year / 50,000 Mile Warranty (on catalytic converter) Made in Miami, Florida

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75mm Dual Clamp Exhaust Sleeve - Priced Each

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T#:37622243

Part#: 18307560781

In Stock at Vendor

$ 44.99

This product was last offered at the strikethrough price on
05-07-2026

$ 43.99 USD

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$ 43.99 USD

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Dual clamp pipe connector joins exhaust pipes without welding. Split, compressible design clamps tightly around joined pipes for a leak-free fit. Includes hardware.

76.2mm (3.00 inch) diameter.

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Active Autowerke Performance Catted Downpipes - G05/06 X5 X6, G14/15/...

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For vehicles with the N63B engine (2020+) - VIN Required for Purchase

T#:22822601

Part#: 11-041B

Ships in 10 Business Days

$ 2,849.99 USD

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$ 2,849.99 USD

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Unleash the Beast: Active Autowerke Signature GESI High-Flow Downpipes The S63 and N63 twin-turbo V8s are world-class engines, but they’ve got a breathing problem. From the factory, your BMW X5M, X6M, 550i, or 650i is suffocating under massive backpressure caused by restrictive, bulky catalytic converters. If you want real power, you have to let those turbos spin. Active Autowerke’s Signature High-Flow Downpipes are the ultimate "no-compromise" upgrade. Hand-fabricated in Miami, these 3.0" downpipes utilize GESi G-Sport Ultra High Output technology. You get the raw performance of a track setup with the refined, odorless experience of a street car—and most importantly, no Check Engine Light. Why These Downpipes Belong on Your BMW: Turbo performance is all about the pressure differential. By clearing the path behind the turbine wheel, you allow the turbos to work significantly less to produce significantly more. Turbo Response: Experience a massive reduction in lag with quicker spool-up and instant throttle tip-in. Massive Power Ceiling: The 4.5" GESi 400-cell cores are rated for 500hp to 850hp, ensuring they won't become a bottleneck as you climb the ladder of modifications. Clean & Odorless: Forget the "gas station" smell of catless downpipes. These proprietary precious-metal catalysts keep the air clean and your cabin comfortable. Hand-Built Precision These aren't mass-produced units. Each set is TIG-welded 304 stainless steel with cast upper V-band flanges for a factory-perfect seal. Because Active Autowerke builds these in-house, the fitment is surgical—no "massaging" or welding required for a secure bolt-on install. Turner Fitment Note: To guarantee 100% accuracy for your build, please provide your VIN at checkout. Note: These are F-chassis specific; G-body vehicles with the N63B engine require a different configuration. Core Features: No CEL Guarantee: Optimized for catalytic efficiency to keep your dashboard clear. 49-State Legal: EPA Registered and fully OBD2 compliant (Excludes CA). Built for Heat: Rated to withstand up to 1,500°F and reaches operational efficiency in just 9 seconds. Legendary Durability: 304 stainless substrate is furnace-braised to the mantle for maximum vibration resistance. Warranty Protected: Includes a 5-year/50,000-mile structural warranty and a 2-year/25,000-mile catalyst core warranty.* Technical Specs: Material: TIG-Welded 304 Stainless Steel Tubing: Full 3.0" (76mm) Mandrel-Bent Piping Catalyst: GESi Ultra High Output (400 CPI) HP Rating: 500hp - 850hp Lead Time: Custom made-to-order (Approx. 2 weeks) *A Note on Burble Tunes: We love a good exhaust crackle as much as anyone, but "aggressive" burble or pop maps physically destroy catalytic substrates. Use of such tunes will void the warranty on the GESi core.

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Active Autowerke GESI Catted Downpipes - S63 N63

For 2014+ model years only

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T#:397488

Part#: 11-041

Ships in 3 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 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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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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Active Autowerke Performance Catted Downpipes - Flanged - E70/71 E60/...

For Model Years 2010-2012 Only

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For Model Years 2010-2012 Only - VIN Required for Purchase

T#:22822600

Part#: 11-041F

Ships in 10 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

Add to Wish List

Qty

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

Add to Wish List

The S63 and N63 twin-turbo V8s are world-class powerplants, but they’ve got a breathing problem. From the factory, your BMW X5M, X6M, 550i, or 650i is suffocating under massive backpressure caused by restrictive, bulky catalytic converters that trap heat and kill momentum. If you want real power, you have to let those turbos spin. Active Autowerke’s Signature High-Flow Downpipes are the ultimate "no-compromise" upgrade for the serious BMW enthusiast. Hand-fabricated in Miami, these 3.0" downpipes utilize GESi G-Sport Ultra High Output technology. You get the raw performance and rapid spool of a track setup with the refined, odorless experience of a daily driver—and most importantly, no Check Engine Light. Why These Downpipes Belong on Your BMW: Turbo performance is all about the pressure differential. By clearing the path behind the turbine wheel, you allow the turbos to work significantly less to produce significantly more. Instant Turbo Response: Experience a massive reduction in lag with quicker spool-up and instant throttle tip-in. Massive Power Ceiling: The 4.5" GESi 400-cell cores are rated for 500hp to 850hp, ensuring they won't become a bottleneck as you climb the ladder of modifications. Clean & Odorless: Forget the "gas station" smell of catless downpipes. These proprietary precious-metal catalysts keep the air clean and your cabin comfortable. Hand-Built Precision These aren't mass-produced units. Each set is TIG-welded 304 stainless steel with cast upper V-band flanges for a factory-perfect, leak-free seal. Because Active Autowerke builds these in-house, the fitment is surgical—designed for a straightforward bolt-on installation with no cutting or welding required. Turner Fitment Note: To guarantee 100% accuracy for your build, please provide your VIN at checkout. Note: These are F-chassis specific; G-body vehicles with the N63B engine require a different configuration. Core Features: No CEL Guarantee: Optimized for catalytic efficiency to keep your dashboard clear. 49-State Legal: EPA Registered and fully OBD2 compliant (Excludes CA). Built for Heat: Rated to withstand up to 1,500°F and reaches operational efficiency in just 9 seconds. Legendary Durability: 304 stainless substrate is furnace-braised to the mantle for maximum vibration resistance. Warranty Protected: Includes a 5-year/50,000-mile structural warranty and a 2-year/25,000-mile catalyst core warranty.* Technical Specs: Material: TIG-Welded 304 Stainless Steel Tubing: Full 3.0" (76mm) Mandrel-Bent Piping Catalyst: GESi Ultra High Output (400 CPI) HP Rating: 500hp - 850hp Lead Time: Custom made-to-order (Approx. 2 weeks) *A Note on Burble Tunes: We love a good exhaust crackle as much as anyone, but "aggressive" burble or pop maps physically destroy catalytic substrates. Use of such tunes will void the warranty on the GESi core.

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Active Autowerke A-Flow Catted Downpipes - S63/N63

For Model Years 2010-2012 Only

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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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BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW X6 M S63 4.4L

Sub-Categories

Titanium Exhaust Wrap - 2" X 25'

BMW N54 N55 N63 S63 HJS V-Band Exhaust Clamp - Priced Each

Prosport Titanium Exhaust Wrap - 2" x 50

Exhaust Sleeve With Dual Clamps - Priced Each

Prosport Gold Heat Reflective Tape - 2" x 15'

Prosport Fiberglass Exhaust Wrap - Black - 2" x 50'

Prosport Fiberglass Exhaust Wrap - White - 2" x 50'

Active Autowerke F90 M5/M8 X5M/X6M Aflow Catted Downpipes

Active Autowerke High Flow Catted Downpipes - S63

75mm Dual Clamp Exhaust Sleeve - Priced Each

Active Autowerke Performance Catted Downpipes - G05/06 X5 X6, G14/15/...

Active Autowerke GESI Catted Downpipes - S63 N63

Active Autowerke S63 N63 A-Flow Catted Downpipes

Active Autowerke S63 N63 A-Flow Catted Downpipes

Active Autowerke Performance Catted Downpipes - Flanged - E70/71 E60/...

Active Autowerke A-Flow Catted Downpipes - S63/N63

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