UNI-FIT Flange X-Tension Tubes; 3.0 inch Collector Size; designed for 3.0 inch Exhaust Systems. Sold as a Pair; UNI-FIT Flange X-Tension Tubes; 3″ Collector Size; for 3″ Exhaust System; Includes (1) Pair of S-Bends, flanges, gaskets, (6) attaching bolts, and (6) attaching nuts Overall S-Bend length of 23″ Offset Distance of 4.25″ Constructed of 16 gauge Mild Steel