3" SS H.O. GREEN Catted OEM Connections. 2020+ F250/F350 Super Duty 7.3L 2001 Pontiac Firebird ensuring longevity of the bushing

ensuring longevity of the bushing as well as removal of all deflection caused by the rubber bushing

The Sonic has been tested on high-power track vehicles

Produced in only one top-of-the-line grade

Ford WSS-M2C205-A

do not let this description deceive you

3" SS H.O. GREEN Catted OEM Connections. 2020+ F250/F350 Super Duty 7.3L 2001 Pontiac Firebird ensuring longevity of the bushingKooks Headers and Exhaust has been the leader in the High Performance Exhaust Industry for over 50 Years! Since 1962, Kooks takes pride in offering the best Headers and complete exhaust systems for your street, race and off road applications. We have won hundreds of championships and set countless records in the NHRA, IHRA, NMCA, NMRA, NASCAR, NASA, SCCA and many other racing organizations. Now with three generations of family leadership, we are proud