Silver Bullet throttle body spacers create turbulence in the air flow at the point just prior entry into the engine increasing horsepower, torque and improving throttle response and fuel efficiency. Silver Bullet throttle body spacers are constructed out of durable T-6061 billet aluminum and using a unique serrated/helix entry to create turbulence at the manifold while eliminating the annoying whistle found in other helix only throttle spacers.Installation InstructionsThis Part Fits:
Year
Make
Model
Submodel
2014-2016
BMW
228i
Base
2013-2018
BMW
320i
Base
2013-2018
BMW
320i xDrive
Base
2012-2016
BMW
328i
Base
2014-2016
BMW
328i GT xDrive
Base
2013-2016
BMW
328i xDrive
Base
2014-2016
BMW
428i
Base
2015-2016
BMW
428i Gran Coupe
Base
2014-2016
BMW
428i xDrive
Base
2015-2016
BMW
428i xDrive Gran Coupe
Base
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