Before & After of a BMW N54 Walnut Blast

N54 Walnut Blasting: Preventative Maintenance with Increased Performance

What is a Walnut Blast? BMW’s N54 engine — found in the 2007-2010 135i, 335i, and 535i — is an impressive work of engineering, pumping out over 300 horsepower and up to 332 ft/lbs of torque from a twin-turbo straight-six motor. The N54 and N55 engines are equipped with direct injection — injecting the fuel…
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