Read What Others Are Saying

I wanted to chime in on these as there is only one review and most people didn't install these themselves. ...

Awesome addition to the Z, factory packaging, and easy to install. Maybe 15-20 minutes tops. Too bad these arent standard. ...

Great fit! No vibrations after install, studs are super easy to install with the stud bearing tool and an impact. ...

The cats I received looked a bit different as the HFC's were smaller and the secondary bung was extended parallel ...

Good price, high quality finish. The piston shape sold me : ) ...

Shanna's video made the installation process really easy since I'm a visual learner. The HP pressure is solid for a ...