It's a messy job. The honeycomb has a similar texture to coal and dust and pieces go everywhere. If you do this your cel will always be on.
Also the shape of the cat without the insides can cause a loud exhaust, it seems to boom inside the cavity.
Sometimes exhaust shos have cheaper solutions for cat replacement.
2014 JKU, JKS lift,Poison spyder flares, bombshell covers,Rancho D2 control arms, JKS adjustable track bars, 35" Tires. GrabBars, Crawler Conceptz rear bumper, Smitty front bumper, Winch. Rough Country inner fenders, Teraflex Disco Mud Flaps
Backseat Dobermann Security