Are those cats? My got one of those with his car and we were wondering wtf it was. Why does it look like that?

 

high flow cats. guess thats what they look like.

 

Are they cali smog legal? Will they grow a code?

 

in 49 states.

 

so i assume cali isnt one of them

 

correct, not carb approved.

 

Craby - What did those set kooks set you back? How's the fishing been? Looking at a foot of snow in Oklahoma this morning, glad my daily is a Z71!!

 

That's likely the system I'm getting too Craby -- 1 3/4" x 1 7/8" x 3" Stepped (which size did you go with?), and adding an electric diverter... Did you get the off-road Headers? Reuse stock gaskets? Did you need O2 extensions? Any advice based on this install?

Did you change your engine mounts before this job? Many reports say its highly advised.