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 u nique serrated/helix entry to create turbulence at the manifold while eliminating the annoying whistle found in other helix only throttle spacers.
Installation Instructions


This Part Fits:

Year	Make	Model	Submodel
2011	BMW	1 Series M	Base
2008-2013	BMW	128i	Base
2008-2013	BMW	135i	Base
2014-2016	BMW	228i	Base
2015-2016	BMW	228i xDrive	Base
2017-2021	BMW	230i	Base
2017-2021	BMW	230i xDrive	Base
2013-2018	BMW	320i	Base
2013-2018	BMW	320i xDrive	Base
2001-2006	BMW	325Ci	Base
2001-2006	BMW	325i	Base
2001-2006	BMW	325xi	Base
2014-2018	BMW	328d	Base
2014-2018	BMW	328d xDrive	Base
2007-2016	BMW	328i	Base
2014-2016	BMW	328i GT xDrive	Base
2009-2016	BMW	328i xDrive	Base
2007-2008	BMW	328xi	Base
2001-2006	BMW	330Ci	Base
2017	BMW	330e	iPerformance
2001-2006,2017-2018	BMW	330i	Base
2017-2019	BMW	330i GT xDrive	Base
2017-2019	BMW	330i xDrive	Base
2001-2006	BMW	330xi	Base
2009-2011	BMW	335d	Base
2007-2015	BMW	335i	Base
2014-2016	BMW	335i GT xDrive	Base
2009-2015	BMW	335i xDrive	Base
2011-2013	BMW	335is	Base
2007-2008	BMW	335xi	Base
2016-2018	BMW	340i	Base
2017-2019	BMW	340i GT xDrive	Base
2016-2018	BMW	340i xDrive	Base
2014	BMW	428i	Base
2014	BMW	428i xDrive	Base
2017-2024	BMW	430i	Base
2017-2020	BMW	430i Gran Coupe	Base
2017-2025	BMW	430i xDrive	Base
2017-2020	BMW	430i xDrive Gran Coupe	Base
2014	BMW	435i	Base
2014	BMW	435i xDrive	Base
2017-2020	BMW	440i	Base
2017-2020	BMW	440i Gran Coupe	Base
2017-2020	BMW	440i xDrive	Base
2017-2020	BMW	440i xDrive Gran Coupe	Base
2016-2018	BMW	M2	Base
2019-2021	BMW	M2	Competition
2020	BMW	M2	CS
2014-2016	BMW	M235i	Base
2015-2016	BMW	M235i xDrive	Base
2017-2021	BMW	M240i	Base
2017-2021	BMW	M240i xDrive	Base
2002-2006,2008-2013,2015-2018,2021-2025	BMW	M3	Base
2021-2025	BMW	M3	Competition
2022-2025	BMW	M3	Competition xDrive
2024	BMW	M3	CS
2020-2025	BMW	M340i	Base
2020-2024	BMW	M340i xDrive	Base
2015-2025	BMW	M4	Base
2021-2025	BMW	M4	Competition
2021-2025	BMW	M4	Competition xDrive
2019-2020,2025	BMW	M4	CS
2023	BMW	M4	CSL
2016	BMW	M4	GTS
2021-2025	BMW	M440i	Base
2022-2025	BMW	M440i Gran Coupe	Base
2021-2025	BMW	M440i xDrive	Base
2002	BMW	Z3	Coupe
2002	BMW	Z3	M Coupe
2002	BMW	Z3	M Roadster
2002	BMW	Z3	Roadster
2003-2005	BMW	Z4	2.5i
2003-2005	BMW	Z4	3.0i
2006-2008	BMW	Z4	Coupe 3.0si
2006-2008	BMW	Z4	M Coupe
2006-2008	BMW	Z4	M Roadster
2022-2025	BMW	Z4	M40i
2020	BMW	Z4	M40i First Edition
2006-2008	BMW	Z4	Roadster 3.0i
2006-2008	BMW	Z4	Roadster 3.0si
2020-2021	BMW	Z4	sDrive M40i
2012-2016	BMW	Z4	sDrive28i
2009-2011,2019-2022	BMW	Z4	sDrive30i
2009-2016	BMW	Z4	sDrive35i
2011-2016	BMW	Z4	sDrive35is