BMW 4 Series G22 (2021+)

Automatic Transmission Service Kit - With Aluminum Oil Pan

For Pre-LCI models only

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:53644251

Part#: URO011913KT

Ships in 1 Business Day

Sale - Save 1% $ 252.99

This product was last offered at the strikethrough price on
05-30-2026

$ 249.51 USD

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Sale - Save 1%

$ 252.99

This product was last offered at the strikethrough price on
05-30-2026

$ 249.51 USD

Add to Wish List

Over the life of a vehicle, the transmission can often be overlooked when performing routine maintenance. If left unserviced, the automatic transmission fluid will break down, causing the valve body and filter to become contaminated with deposits and sludge. This will lead to poor shifting, slipping, and ultimately, transmission failure.

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Dinan Performance Spring Set And Supplementary Ride Quality & Handlin...

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T#:55353623

Part#: D100-0934KT2

In Stock

$ 508.99 USD

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$ 508.99 USD

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We’ve taken two of Dinan’s most precisely engineered suspension upgrades and locked them into one ultimate chassis package.

Front and Rear Brake Rotor Set - G01, G20, G22

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:55353597

Part#: 34116860912KT3

In Stock

$ 775.99 USD

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$ 775.99 USD

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Thousands of miles of braking take their toll on factory rotors. Engineered to meet or exceed strict OEM specifications, this kit brings back the dependable bite and thermal management required for spirited street driving and weekend track duty alike.

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ECS 12.5mm Wheel Spacer & ECS Conical Seat Bolt Kit

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:55102420

Part#: 002411ECSKT23

In Stock

$ 311.89 USD

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$ 311.89 USD

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This staggered wheel spacer kit is designed to broaden your track width, lowering your vehicle's roll center, reducing body roll, and delivering sharper turn-in response, all while filling out the wheel wells for an undeniable track-ready presence.

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Automatic Transmission Service Kit - GA8HP51X / GA8HP51Z - BMW G2X G3...

For Pre-LCI vehicles with the B58TU (B58D/B58C) engine w/ GA8HP51X or GA8HP51Z transmis...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:53361559

Part#: 24118743462KT3

In Stock at Vendor

$ 265.70

This product was last offered at the strikethrough price on
05-08-2026

$ 263.24 USD

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$ 263.24 USD

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Don't let your BMW's performance degrade due to neglected maintenance. Over time, automatic transmission fluid breaks down, leading to a buildup of sludge and deposits that can clog the valve body and contaminate the filter. This results in sluggish shifting, gear slipping, and eventually, catastrophic transmission failure. Protect your investment with this comprehensive Automatic Transmission Service Kit, designed to restore smooth operation and factory-fresh shift quality.

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M340i Valved Rear Exhaust W Carbon Tips

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

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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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Active Autowerke GESI Catted Downpipe - B58N M340i/440i

For Model Years 2025+

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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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$ 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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M340i Valved Rear Exhaust W Black Tips

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

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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Heavy Duty Aluminum Transmission Pan With Oil Pan Gasket

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:55353626

Part#: 228053420KT2

Ships in 3 Business Days

$ 354.99 USD

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$ 354.99 USD

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Over time, those OEM plastic units do what they do best—warp, leak, and trap heat right where you don't want it.

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Automatic Transmission Service Kit - With Aluminum Oil Pan

Dinan Performance Spring Set And Supplementary Ride Quality & Handlin...

Front and Rear Brake Rotor Set - G01, G20, G22

ECS 12.5mm Wheel Spacer & ECS Conical Seat Bolt Kit

Automatic Transmission Service Kit - GA8HP51X / GA8HP51Z - BMW G2X G3...

M340i Valved Rear Exhaust W Carbon Tips

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

Active Autowerke GESI Catted Downpipe - B58N M340i/440i

M340i Valved Rear Exhaust W Black Tips

Heavy Duty Aluminum Transmission Pan With Oil Pan Gasket

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