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Manufactured in 304 S/S, every LS1 F-Body system will produce excellent performance gains throughout the power curve. These systems also provide a great fit and install easily. With your choice of 1-3/4" or 1-7/8" primaries with Catted or Off-Road direct bolt in 3" Y-Pipe, our systems will accommodate a wide variety of applications.
*Note: Custom outlet Y-Pipes are available.

Also available - ARH's New 2" and Step Design Custom Race Headers and Y-Pipe!
Available with Round or "D" shaped Ports - Call for more information