aFe 51-76312 Momentum GT Cold Air Intake for 17-21 BMW 230i/330i/430i/440i 2

Vehicle Fitment

• 2017-2021 BMW 230i / 230i xDrive (F22/F23, L4 2.0L Turbo B46)
• 2017-2019 BMW 330i / 330i xDrive / 330i GT xDrive (F30/F31/F34, L4 2.0L Turbo B48)
• 2017-2020 BMW 430i / 430i xDrive / 430i Gran Coupe / 430i xDrive Gran Coupe (F32/F33/F36, L4 2.0L Turbo B46/B48)
• 2017-2020 BMW 440i (F32/F33, L4 2.0L Turbo B48)

Features

• aFe Momentum GT Pro DRY S cold air intake engineered for improved airflow and throttle response
• One-piece sealed roto-molded housing with auxiliary air inlet draws in cooler ambient air
• Large Pro DRY S synthetic 3-layer performance air filter - oil-free, washable and reusable
• Aluminum heat shield panel protects housing from turbo heat
• Built-in clear sight window allows easy visual inspection of filter without disassembly
• CAD-designed, dyno-tuned intake tube for optimized airflow and reduced turbulence
• Premium stainless-steel T-bolt clamps and silicone bellows coupling for secure installation
• Outflows factory intake by up to ~11 % with dyno-proven gains of +13 HP and +12 lb-ft torque

Specifications

• Part Number: 51-76312
• Brand: aFe Power Momentum GT Pro DRY S Series
• Compatible Years: 2017-2021
• Applicable Models/Engines: BMW 230i, 330i, 430i, 440i - B46/B48 2.0L Turbo
• Filter Type: Pro DRY S synthetic, washable/reusable
• Housing Material: Cross-linked polyethylene sealed housing
• Intake Tube Material: Dyno-tuned roto-molded plastic
• Estimated Performance Gains: +13 HP / +12 lb-ft torque
• Airflow Improvement: Up to ~11-14 % over stock intake
• Measured Flow: ~350 CFM @ 7" H2O
• Emissions: Not CARB exempt - not legal for sale/use in California and certain states

Included Components

• 1x One-piece sealed intake housing with auxiliary inlet
• 1x Dyno-tuned roto-molded intake tube
• 1x Pro DRY S washable/reusable synthetic air filter
• 1x Aluminum heat shield
• 1x Built-in sight window
• 1x Silicone bellows coupling
• 2x Stainless-steel T-bolt clamps
• Installation hardware kit

Product Description

The aFe 51-76312 Momentum GT Cold Air Intake with Pro DRY S filter is a performance-boosting cold air intake system designed for a range of BMW 2- and 3-series models equipped with the turbocharged 2.0L B46/B48 engine. This direct-fit system replaces the restrictive factory airbox with a sealed one-piece housing that draws in cooler ambient air through an auxiliary inlet, improving engine breathing and throttle response without cutting or drilling factory components. An aluminum heat shield helps protect the intake from turbo heat, and a built-in sight window lets you inspect the large Pro DRY S synthetic air filter without removal.

Featuring a dyno-tuned CAD-designed intake tube and premium components like silicone bellows coupling and stainless-steel T-bolt clamps, this intake outflows the stock system by up to approximately 11-14 % and delivers estimated gains of up to +13 HP and +12 lb-ft of torque under ideal conditions. The oil-free, washable Pro DRY S filter media makes maintenance simple while ensuring excellent airflow. Note: this intake is not CARB exempt and may not be legal for sale or use in California or certain other CARB states - always verify local emissions regulations before purchase.