aFe Momentum GT Cold Air Intake w/ Pro 5R Filters – BMW S58 M2 / M3 / M4 (G8x)

OVERVIEW

The aFe Momentum GT is a dual sealed cold air intake system for the S58-powered BMW M3 and M4. It replaces both factory airboxes with smooth one-piece sealed housings molded from heat-resistant XLPE (cross-linked polyethylene) polymer, each carrying a 6-1/2" tall 360-degree radial flow Pro 5R air filter on a 3-1/2" round flange. Large, clear sight windows let you inspect the filters without disassembling the system.

Each side uses a high-quality, computer-designed and dyno-tuned intake tube built from XLPE and high-performance silicone for heat-soak resistance and durability. aFe's patent-pending filter-to-housing interface uses half the number of parts of a traditional cold air intake, and the system is designed around the factory mounting locations for a hassle-free installation. Stainless-steel worm clamps and a premium bellows coupling are included, and the intake fits models equipped with the factory strut brace with no modification required.

SPECS

• Filters: two 6-1/2" tall 360-degree radial flow air filters with 3-1/2" round flange
• Filter media: oiled Pro 5R — five layers of progressively finer cotton gauze, best for street and track use
• Housings: one-piece sealed XLPE (cross-linked polyethylene) polymer with large clear sight windows
• Intake tubes: computer-designed, dyno-tuned XLPE and high-performance silicone; heat-soak resistant
• Clamps: stainless-steel worm clamps
• Coupling: premium silicone bellows
• Patent-pending filter-to-housing interface — half the parts of a traditional cold air intake
• Uses factory mounting locations; fits models with the factory strut brace with no modification
• Emissions: not currently CARB exempt — not for sale or use in California

PARTS INCLUDED

• 2x Pro 5R oiled air filters (24-91097)
• 1x Driver side intake tube (05-5070083B1)
• 1x Passenger side intake tube (05-5070083B2)
• 1x Driver side housing (05-5070083B3)
• 1x Passenger side housing (05-5070083B4)
• 1x Silicone bellows coupling (05-01525)
• 3x #048 clamps (03-50007)
• 2x Auxiliary plugs (05-00937)

TECH RESOURCES

Additional Parts Required

• None. aFe specifies no additional hardware and no tune for this intake — it uses factory mounting locations and all clamps, plugs and the coupling are supplied.
• Customer-supplied tools: standard metric hand tools and a nut driver or flat-blade screwdriver for the clamps.
• Service items (not required at install): replacement Pro 5R oiled filters 24-91097; Pro DRY S oil-free alternative 21-91097.

Installation

• aFe POWER 50-70083R / 50-70083D installation instructions (PDF) — official aFe manual, covers both filter versions.

Notes

• Emissions Disclaimer: This product is not currently CARB exempt and is not available for purchase in California or for use on any vehicle registered with the California Department of Motor Vehicles.
• Fitment follows aFe's official 50-70083R / 50-70083D installation manual.

PART NUMBER

• 50-70083R — Momentum GT cold air intake with Pro 5R oiled filters

VEHICLE APPLICATIONS