The turbo handel max power 900HP. Upgrade Bigger 11 blades billet compressor wheel. for BMW 335 i (E90/E91/E92/E93) N54B30 2979ccm 225Kw 306HP Jan.2006 to Mrz.2010. Turbo model. you need to buy the 2" (55mm) intake hose to match the larger inlet if you buy the turbo.
