Engine Code : N54 (Cyl. 1-3), N54B30B, N55B30A, N54B30A, N54B30T. for BMW 135i(E82/E88) Engine N54B30 3.0L 2006-2011. for BMW 335i(E90/E91/E92/E93)(E82/E88) Engine N54B30 3.0L 2006-2011. Upgrade 6+6 blades billet compressor wheel: forged full-machined billet aluminum compressor wheels with a better boost response.
