The SP series of cold air intakes is Injen?s flagship system in their lines of traditional aluminum cold air intake systems. Injen Technology is the world?s first tuned air intake system and holds four (4) patents on the tuning process of an intake system, something no other manufacturer can claim. The SP series of cold air intakes feature many of Injen Technology?s patented tuning process, including MegaRam (MR) Technology (Patents 7,359,795 and 7,669,571), Air Fusion (Patent 7,721,669), and many other innovations that keep Injen Technology at the forefront in the performance aftermarket.

This Part Fits:

Year	Make	Model	Submodel
2018-2021	Subaru	WRX STI	Base
2018-2021	Subaru	WRX STI	Limited
2020	Subaru	WRX STI	S209
2018	Subaru	WRX STI	Type RA