Injen
Injen SP1202 Cold Air Intake - 2004-2007 Subaru STI / 2006-2007 WRX
Regular price $409.76Unit price- Up to 15% off
PERRIN
PERRIN Afta-MAF Intake Tube - 2002-2007 Subaru WRX / STI
Sale price $107.95 Regular price $127.00Unit price - 15% off
PERRIN
PERRIN Replacement Foam Filter - 2008-2021 Subaru WRX / STI
Sale price $79.05 Regular price $93.00Unit price - 15% off
PERRIN
PERRIN High-Flow Replacement Air Filter - 2008-2021 Subaru WRX / STI
Sale price $61.20 Regular price $72.00Unit price - Up to 15% off
PERRIN
PERRIN Afta-MAF Intake Tube - 2008-2014 Subaru WRX / STI
Sale price $115.60 Regular price $136.00Unit price
On these cars the intake and the tune go together. Most aftermarket intakes change the MAF housing size, so the ECU needs a map made for that intake or the car can idle rough and run lean. A drop-in panel filter in the stock airbox is the one intake change that does not need a tune. A turbo inlet is a common add-on while you are already in there.
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