V3 Top Feed TGV Housings

The IAG V3 Top Feed TGV Housings are a direct upgrade for Subaru intake manifolds, engineered to enhance airflow and boost horsepower. These housings boast a redesigned port shape that improves air entry while maintaining compatibility with original equipment (OE) emissions components. The product is CNC machined in-house from 6061 aircraft-grade aluminum and is available in a natural silver finish (part number IAG-AFD-3050SL) or an anodized black finish. Significant airflow gains are achievable even with the factory butterfly valves in place, with reported increases of 5 WHP over V2 TGV housings and 13 WHP over stock housings. Because these V3 TGV Housings retain compatibility with OE emissions components, a custom tune is not required if only the TGV Housings are installed. However, when combined with other performance modifications, professional calibration is recommended. These TGV housings offer additional clearance for larger inlet turbochargers. It is important to note that these TGVs are not compatible with fuel lines that necessitate the removal of the TGV Motors; IAG offers specific Fuel Line Kits for such applications. The kit includes two TGV housings, a hardware bag, and four injection-molded housing adapters. Buyers will need to re-use their original OEM motors, shafts, and butterfly valves. Fitment is specified for the following Subaru models: 2008-2014 WRX, 2007+ STI, 2007-2012 Legacy GT (LGT), and 2009-2013 Forester XT (FXT). The product is 50-state legal with Executive Order Number D-887-1. This product also falls under California Proposition 65 warnings for Cancer and Reproductive Harm.