aFe Momentum GT Pro Dry S Cold Air Intake – BMW 230i / 330i / 430i (F22 / F30 / F32, B48 / B46)

OVERVIEW

The aFe POWER Momentum GT cold air intake replaces the restrictive factory airbox on BMW's B46/B48 turbocharged four-cylinder with a sealed one-piece roto-molded housing and a CAD-designed, dyno-tuned roto-molded intake tube. aFe records maximum gains of +13 horsepower and +12 lbs. x ft. of torque, with the system out-flowing the factory intake by up to 11%.

The smooth one-piece (patent pending) sealed housing draws through an auxiliary air scoop to ensure the coolest intake charge available, and a large clear sight window allows the filter to be inspected without disassembly. A durable aluminum heat-shield panel is secured to the housing to protect it from turbocharger heat.

Inside sits an 8-inch tall, 360-degree radial flow Pro DRY S air filter built from three layers of progressively finer porosity synthetic media - oil-free, washable and reusable. The patent-pending filter-to-housing interface allows the largest possible filter while simplifying assembly. Premium stainless steel clamps and a silicone bellow coupling finish the kit, and no cutting or drilling of factory parts is required.

SPECS

• +13 HP maximum gain (aFe measured)
• +12 lbs. x ft. torque maximum gain (aFe measured)
• Outflows the factory intake by up to 11%
• Filter media: Pro DRY S, oil-free 3-layer progressively finer porosity synthetic
• Filter size: 8 in. tall, 360-degree radial flow conical
• Filter is washable and reusable
• Housing: one-piece roto-molded sealed design with auxiliary air scoop and built-in sight window
• Aluminum heat-shield panel protects the housing from turbocharger heat
• Intake tube: CAD-designed, dyno-tuned, roto-molded
• Hardware: silicone double-hump coupling with stainless steel clamps
• No cutting or drilling of factory parts required for installation
• Emissions: not CARB exempt; not legal for sale in California or for use on California-registered vehicles

PARTS INCLUDED

• 1x Pro DRY S air filter (aFe 21-91103)
• 1x Intake housing (aFe 05-76309B2)
• 1x Intake tube (aFe 05-76312B1)
• 1x Rubber mount (aFe 03-50534)
• 2x M4 Torx screws (aFe 03-50490)
• 1x Silicone double-hump coupling (aFe 05-01416)
• 2x #052 hose clamps (aFe 03-50008)

TECH RESOURCES

Additional Parts Required

• None. aFe POWER specifies no additional hardware for this intake system - it is a complete bolt-on kit that reuses the factory mass air sensor and mounting points.
• Installer-supplied tools: metric socket and wrench set, Torx driver set, flat-blade screwdriver and pliers.
• Optional service item: a dry-media filter cleaning kit for periodic maintenance. Pro DRY S filters are cleaned dry and must never be oiled.

Installation

• aFe POWER 51-76312 / 54-76312 Momentum GT cold air intake - installation instructions (PDF)

Notes

• This intake system is not CARB exempt at this time and is not legal for sale in California or use on vehicles registered with the California Department of Motor Vehicles.

PART NUMBER

• 51-76312 - Momentum GT intake with Pro DRY S oil-free filter media (this listing)
• Identical kit supplied with Pro 5R oiled filter media; both numbers share aFe's installation document — 54-76312

VEHICLE APPLICATIONS