2" Header and Catted (H) Connection Kit. 2011-2014 Mustang GT 5.0L 4V. 2015 chevrolet corvette As part of the SPEC

As part of the SPEC Corvette racing series

and installation instructions for a factory quality installation

Or you can open up the hole ever so slightly and fit the nut/washer included and accommodate it

most well thought out 4 point roll bar available

For those not looking for a full roll cage

2" Header and Catted (H) Connection Kit. 2011-2014 Mustang GT 5.0L 4V. 2015 chevrolet corvette As part of the SPECKooks 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