IAG Black V3 Top Feed TGV Housings with Butterfly Pass Thru 2006-2014 WRX / 2007-2021 STI / 2007-2012 LGT / 2009-2013 FXT – Subimods.com

IAG V3 TOP FEED TGV HOUSINGS WITH BUTTERFLY PASS THRU 06-14 WRX 07+ STI 07-12 LGT 09-13 FXT INCREASE AIRFLOW AND HORSEPOWER The OEM Subaru intake manifold features Tumble Generator Housings which are designed to decrease cold start emissions by tumbling the airflow on cold starts. Once the cold start process is over the butterfly valves in the housings remain in the open position and dont restrict flow much. This means that there are airflow gains to be had even with the butterfly valves in place. Weve completely redesigned our popular TGV housings with new port shapes to further improve airflow and allow for the OEM emissions equipment compatibility. Weve seen gains of 5 WHP over our V2 TGV housings and 13 WHP over stock housings. w