Kooks green cats

[engineermike]

I’d be really interested to see how HJS cats hold up to supercharged v8 applications. It looks like most that run them are na or turbo. Turbos are much easier on cats. Myself, I’ve recently swapped to gt500 cats because they are still ceramic and the material thickness appears to be double that of a GT.

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[Zelek]

Which brand spacers did you add?

Big Daddies L-shaped ones. The mini cat spacers will work too.