3" diameter into 2.25" reverse Y-pipe. Adding this Mid-Pipe with Y-Pipe to an Axle-Back system will give you all the elements of a Cat-Back(tm) system. These Mid-Pipes are NOT intended for use with OE factory mufflers. Built from premium T-304 stainless steel, superior to T-400 series (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer numerical control (CNC) manufacturing ensures an accurate fit. Best of all, Borla(r) stands behind every Mid-Pipe with a Y-Pipe with a Million-Mile Warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.
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