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The wait is over! Extreme Turbo Systems is proud to release ETS new Subaru STI V2 Maxflow Exhaust Header for the 2004+ Subaru STI.
ETS designed ETS V2 Maxflow Header to be a direct factory replacement header. ETS start off with large 1 7/8 primary runners that come together in a true low angle 4-1 merge collector that then flow into a huge 2.5" secondary for maximum scavenging and exhaust flow.
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