ETS Subaru STI V2 MaxFlow Header (Vband Flange) Subaru STI 2004

The Extreme Turbo Systems (ETS) V2 MaxFlow Header is a direct replacement exhaust manifold for Subaru STI models. It features 1 7/8\" primary runners merging into a low-angle 4-1 collector, flowing into a 2.5\" secondary for optimized exhaust flow. Constructed from custom .100 USA made thick wall 304 stainless steel tubing with surfaced flanges for a leak-free seal. It uses slip-fit connections for easy installation and has a low-profile design for maximum clearance. Confirmed to fit with XL oil pans (IAG, KillerB). Available with 2-Bolt, 3-Bolt, or V-Band up-pipe flange options (V-Band requires customer-built up-pipe). 100% built in-house in the USA.