Agency Power has developed one of the best sounding and performing exhaust systems for the 2011 WRX STi Sedan. The new exhaust features an all T304 stainless steel piping in 2.5inch diameter from the catback. The piping is all hand polished featuring robotic TIG welding. The midpipe includes a resonator to assist in keeping that traditional boxer engine sound, with an exotic race tone that does not drone in the cabin. The ½ inch thick flanges offer a secure fit along with the factory placement exhaust hangers. The catback exhaust uses a high flow Y-Pipe to efficiently direct exhaust to the dual polished mufflers. The Y-pipe features a merged collector and 2.5 inch piping on each extension to give your exhaust a combined 5 inches of exhaust flow.
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Agency Power was developed out of the need to provide quality, functional, and fashionable racing products. Agency Power has and indepth number of parts for cars ranging from Porsche, BMW, Ferrari, Subaru, Mitsubishi, Nissan, and more.