aFe Silver Bullet Throttle Body Spacer 12-15 BMW 328i (F30) L4-2.0L N20/N26

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. Silver Bullet Throttle Body Spacer Kit BMW 220i/320i/328i/420i/428i (F2X/3X) 12-16 I4-2.0L (t) N20/N26 BMW 220i/320i/328i/420i/428i (F2X/3X) 12-16 I4-2.0L (t) N20/N26 Fitment: BMW 228i Base 2014 to 2016 BMW 320i Base 2013 to 2018 BMW 320i xDrive Base 2013 to 2018 BMW 328i Base 2012 to 2016 BMW 328i GT xDrive Base 2014 to 2016 BMW 328i xDrive Base 2013 to 2016 BMW 428i Base 2014 to 2016 BMW 428i Gran Coupe Base 2015 to 2016 BMW 428i xDrive Base 2014 to 2016 BMW 428i xDrive Gran Coupe Base 2015 to 2016