aFe 51-31662-C Stage-2 Carbon Fiber CAI for 08-13 BMW M3 S65 4.0L V8

Vehicle Fitment

• 2008-2013 BMW M3 (E90/E92/E93) - S65 4.0L V8

Features

• Magnum FORCE Stage-2 cold air intake system with carbon fiber intake tube
• Pro DRY S dry synthetic air filter - washable and reusable
• High-gloss 2x2 twill weave carbon fiber tube for reduced weight and heat protection
• Enhanced airflow up to approximately 41% over stock intake
• Improved throttle response, horsepower, and torque output
• Direct bolt-on installation - no cutting or drilling of OEM parts required
• Includes billet aluminum smog pump adapter for proper fitment
• Performance-oriented design enhances engine bay aesthetics

Specifications

• Part Number: 51-31662-C
• System Type: Cold air intake with carbon fiber tube
• Filter Type: Pro DRY S dry synthetic media
• Airflow Increase: Up to ~41% over factory intake
• Performance Gains: Up to ~12 HP and ~9 lb-ft maximum (vehicle dependent)
• Material: Carbon fiber intake tube with powder-coated hardware
• Fitment: Dedicated intake for BMW M3 E90/E92/E93 with S65 4.0L V8
• CARB Status: CARB compliant (46-state legal status; verify local requirements)

Included Components

• 1x Pro DRY S dry synthetic air filter
• 1x High-gloss carbon fiber intake tube
• 1x Billet aluminum smog pump adapter
• 1x Set of clamps and couplings
• 1x Complete mounting hardware kit

Product Description

The aFe 51-31662-C Magnum FORCE Stage-2 Carbon Fiber Cold Air Intake System is a premium performance intake engineered specifically for the 2008-2013 BMW M3 equipped with the S65 4.0L V8 engine. Its high-quality carbon fiber intake tube delivers significantly enhanced airflow compared to the stock system - up to approximately 41% more - resulting in improved combustion efficiency, throttle response, and overall engine performance. The Pro DRY S dry synthetic air filter offers excellent filtration and is both washable and reusable for long service life.

Installation is bolt-on and uses factory mounting points without requiring cutting or drilling. The inclusion of a billet aluminum smog pump adapter ensures proper and trouble-free fitment, while the lightweight carbon fiber tube adds visual appeal to the engine bay. This intake system is ideal for M3 owners seeking a balance of performance gains, reduced intake temperatures, and enhanced engine sound, all while maintaining clean under-hood styling. Verify local emissions compliance before installation to ensure legality in your area.