Please don't ride without the cat, The emissions thing is actually keeping people from getting asthma, and other nasty lung diseases. It's just irresponsible. Not having a cat can actually hurt performance and make your truck smell horrible. Exhaust that is too free flowing can prevent the manifold from getting hot, and slow the exhaust air down. Hot air moves faster. That is why people don't put huge diameter exhaust on a 22re.

Having a clogged cat can cause you exhaust manifold to over heat, warp, crack, etc.

Sold Truck: 89 DLX extra cab 4x4 22re Automatic/ New truck 97 T100 4x4 auto Sr5