AMS Performance Carbon Intakes BMW M3/M4 F8X S55

The AMS Performance Carbon Fibre Intakes for BMW M3/M4 S55 turbo engines replace restrictive factory airboxes and tubes with fully enclosed, hand-laid carbon fibre airboxes, full-length carbon ducts to the front grille and high-flow dry media filters. In SnailWorks® R&D testing, these intakes delivered a 27% reduction in airflow restriction and significant power gains, all without ECU tuning.

Key Features:
• 27% reduction in restriction at 4 500 rpm vs. stock
• Fully enclosed carbon fibre airboxes seal out hot engine bay air
• Neodymium-magnetic lids for tool-free filter access
• Full-length carbon ducts scoop cold air from the front grille
• 4-ply, wire-reinforced silicone couplers for smooth, turbulence-free airflow
• Dry media filters—easy to clean with compressed air, no oil required
• CAD-designed, billet 6061 T6 aluminium brackets for OEM-style fitment
• Hand-laid, motorsport-grade 3K twill carbon fibre resists heat, fading and yellowing

Engineering Highlights:
• Designed in Solidworks® and refined with 3D-printed prototypes for perfect fitment
• Carbon ducts and airboxes custom-matched to factory intake vents
• Smooth pipe transitions and gradual bend radii eliminate flow disruptions
• Durable brackets reduce flex and prevent cracking common in cheaper kits

Benefits:
• Sharper throttle response and higher turbo spool-up
• Deeper induction sound as twin turbos breathe freely
• Cleaner engine bay appearance with premium carbon finish
• Bolt-on installation—no cutting, trimming or permanent modifications
• Compatible with stock and modified turbos

Product Notes:
• Hand-laid carbon fibre may exhibit slight weave variations.
• Clean filters with compressed air (30–40 psi) or mild biodegradable cleaners; allow 24–48 hrs to dry.
• No ECU calibration required; performance gains maximised with optional tuning.