3" Cat-Back (X-Pipe) w/Black Tips. 2018-2020 Mustang GT 5.0L. Connects to OEM. 2002 Pontiac Firebird Includes 2 EA B497GB Shocks

Includes 2 EA B497GB Shocks

A progressive valve will have a softer low-speed force that ramps up very quickly as shaft speed increases

This positions the 'instant center' (IC) higher in the chassis

And if you ever switch from an OEM style spring/strut to coilovers

Installs easily with simple hand tools in 2-3 hours

3" Cat-Back (X-Pipe) w/Black Tips. 2018-2020 Mustang GT 5.0L. Connects to OEM. 2002 Pontiac Firebird Includes 2 EA B497GB ShocksKooks 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