Agency Power Titanium Tip Catback Exhaust Subaru STI Wagon 08+ Model: AP-GRB-170 Sale: $899.99 List: $999.99 Quantity: Agency Power Titanium Tip Catback Exhaust Subaru STI Wagon 08+ Agency Power has developed one of the best sounding and performing exhaust systems for the 2008 and up Subaru STI. The new exhaust features all T304 stainless steel piping in 3 inch diameter from the catalytic converter back. The piping is all hand polished featuring robotic TIG welding. The midpipe includes a resonator to assist in keeping that traditional boxxer engine sound with an exotic race tone touch that does not drone in the cabin. The 1/2 inch thick flanges offer a secure fit along with the factory placement exhaust hangers. The muffler is designed to optimize horsepower with very little restriction. The catback exhaust features a quad exit Titanium Tip with the Agency Power logo.