aFe Momentum GT Cold Air Intake – BMW M240i/M340i/M440i (G20/G22/G42) B58

OVERVIEW

The aFe Momentum GT Cold Air Intake replaces the restrictive factory airbox on the B58-powered M240i, M340i, and M440i with a smooth, one-piece sealed housing that feeds cool outside air straight to the turbo. A dyno-tuned intake tube and large, high-flow filter deliver measurable power and throttle response, while an aluminum heat-shield panel and sealed design keep hot engine air out. A clear sight window lets you check the filter without tools. Choose the washable oiled Pro 5R filter or the oil-free Pro Dry S.

SPECS

• Dyno-proven gains up to +13 HP and +14 lb-ft of torque
• Outflows the factory intake by 15% (340 CFM @ 7" H2O)
• One-piece sealed housing in heat-resistant XLPE polymer with an aluminum heat-shield panel
• Dyno-tuned XLPE intake tube with premium silicone couplings
• Clear sight window to inspect the filter without disassembly
• Pro 5R: washable/reusable oiled 5-layer cotton-gauze filter (6" tall, 360° radial flow) — or Pro Dry S: washable oil-free 3-layer synthetic filter
• Installs in factory mounting locations — roughly half the parts of a traditional cold air intake
• Not CARB compliant; not for sale or use in California (will not fit vehicles subject to BMW RDE statutes)

PARTS INCLUDED

• Sealed Momentum GT intake housing (XLPE)
• Aluminum heat-shield panel
• Pro 5R or Pro Dry S air filter (per variant)
• Dyno-tuned intake tube with bellows coupling
• Stainless-steel worm clamps and mounting hardware

TECH RESOURCES

• Installation Instructions (PDF)
• Install/overview video: aFe Momentum GT Intake (YouTube)
• Not CARB compliant — not available for sale or use in California

PART NUMBER

• Pro 5R (Oiled Filter) — 50-70060R
• Pro Dry S (Dry Filter) — 50-70060D

VEHICLE APPLICATIONS