aFe Momentum GT Cold Air Intake – BMW M2/M3/M4 (G87/G80/G82/G83) S58

OVERVIEW

The aFe Momentum GT Cold Air Intake is a dual-filter induction system built for the twin-turbo S58 in the G8X M2, M3, and M4. Two smooth, one-piece sealed housings feed cool air to each turbo through dyno-tuned intake tubes, dramatically increasing airflow over the restrictive factory setup for real power and sharper response. It's engineered to fit around the factory strut brace with no modification, and large clear sight windows let you inspect both filters without tools. Choose the washable oiled Pro 5R filters or the oil-free Pro Dry S.

SPECS

• Dual sealed-housing, dual-filter system for the twin-turbo S58
• Dyno-proven gains up to +13 HP and +15 lb-ft of torque
• Outflows the factory intake by 43% (670 CFM @ 7" H2O)
• Two one-piece sealed XLPE housings with large clear sight windows
• Fits models with the factory strut brace — no modification required
• Pro 5R: two washable oiled 5-layer cotton-gauze filters (6.5" tall, 360° radial flow) — or Pro Dry S: two washable oil-free 3-layer synthetic filters
• Dyno-tuned XLPE intake tubes with premium silicone couplings
• Installs in factory mounting locations
• Not CARB compliant; not for sale or use in California

PARTS INCLUDED

• Two sealed Momentum GT intake housings (XLPE)
• Two Pro 5R or Pro Dry S air filters (per variant)
• Dyno-tuned intake tubes with bellows couplings
• Stainless-steel worm clamps and mounting hardware

TECH RESOURCES

• Installation Instructions (PDF)
• Install/overview video: aFe Momentum GT Intake (YouTube)
• Replacement filter (Pro 5R media): aFe 24-91097
• Not CARB compliant — not available for sale or use in California

PART NUMBER

• Pro 5R (Oiled Filters) — 50-70083R
• Pro Dry S (Dry Filters) — 50-70083D

VEHICLE APPLICATIONS