Direct-fit RamAir SR twin-cone induction kit for N54-powered BMWs. Proven +35.7bhp on Stage 2 335i and 135i - no remap tweaks needed, just bolt on and go.
Two high-flow twin-layer RamAir foam filters, black silicone inlet pipes, full stainless steel hardware
Replaces the restrictive OEM airbox without cutting or modification - DIY fit in under 90 minutes
Maintains proper filtration while maximising airflow for fast road or track day use
