Couple threads talked about this but I would like it all in once place for debate. Has anyone found any logs to prove any of these? Before and after in stock form? Cobb is the only ones saying a tune is required, but who knows what Cobb has in store for the redesigned intake for 15 coming soon hopefully. Also would be nice to see ETS have a STi version as well.
*edited added Cobb as well for all intakes listed / used another site for injen, not a great site to navigate.
Mishimoto - CAI - "works perfectly with the stock tune"
20+ whp and 18 wtq
http://www.mishimoto.com/subaru-wrx-sti-performance-cold-air-intake-15.html
AEM - CAI - "Safe on the stock tune" (has airflow straightener/confirmed)
Gains of 32 hp and 31 ft-lbs of torque.
http://www.aemintakes.com/search/product.aspx?prod=21-735WB
Injen - EVO - ?
Gains are +26HP and +35.5 ft/lbs of torque.
http://www.injen.com/EVO_intakes.html
http://www.subispeed.com/injen-evo-cold-air-intake-system-2015-sti#.VN1kRPnF_ao
Injen - CAI - "The Injen SP Series Intake Systems Feature the Patent Pending MR Technology Process for Optimal Gains and a safe A/F ratio."
gains of 23.4 Horsepower and 24 ft-lbs of torque.
http://www.subispeed.com/2015-subaru-sti/intake/perrin-cold-air-intake-system-2015-sti#.VN1jRfnF_ao
Perrin - CAI - "PERRIN Performance intake systems use proper MAF alignment and plumbing size, both of which are crucial to maintain proper air fuel ratios"
Add 15-30 WHP/WTQ
http://perrinperformance.com/i-16502539-cold-air-intake-system-for-2008-14-wrx-2008-15-sti.html
Cobb SF Intake w/box - SRI - Tune Required
http://www.cobbtuning.com/Subaru-SF-Intake-SF-Airbox-2015-STI-p/715315.htm
*edited added Cobb as well for all intakes listed / used another site for injen, not a great site to navigate.
Mishimoto - CAI - "works perfectly with the stock tune"
20+ whp and 18 wtq
http://www.mishimoto.com/subaru-wrx-sti-performance-cold-air-intake-15.html
AEM - CAI - "Safe on the stock tune" (has airflow straightener/confirmed)
Gains of 32 hp and 31 ft-lbs of torque.
http://www.aemintakes.com/search/product.aspx?prod=21-735WB
Injen - EVO - ?
Gains are +26HP and +35.5 ft/lbs of torque.
http://www.injen.com/EVO_intakes.html
http://www.subispeed.com/injen-evo-cold-air-intake-system-2015-sti#.VN1kRPnF_ao
Injen - CAI - "The Injen SP Series Intake Systems Feature the Patent Pending MR Technology Process for Optimal Gains and a safe A/F ratio."
gains of 23.4 Horsepower and 24 ft-lbs of torque.
http://www.subispeed.com/2015-subaru-sti/intake/perrin-cold-air-intake-system-2015-sti#.VN1jRfnF_ao
Perrin - CAI - "PERRIN Performance intake systems use proper MAF alignment and plumbing size, both of which are crucial to maintain proper air fuel ratios"
Add 15-30 WHP/WTQ
http://perrinperformance.com/i-16502539-cold-air-intake-system-for-2008-14-wrx-2008-15-sti.html
Cobb SF Intake w/box - SRI - Tune Required
http://www.cobbtuning.com/Subaru-SF-Intake-SF-Airbox-2015-STI-p/715315.htm