Im going to cut my cat out tonight, and Im not sure what size pipe to replace it with. The inlet of the cat is bigger than the outlet.

Think its 2.5" and 3" or is it 2" and 2.5"?

Can anyone confirm?

Its a 2001 5.9 4x4

 

3" in, 2.5" out.

 

none of the parts stores had a 3 to 2.5 reducer.
Im going to buy a magnaflow converter I guess.
Which one are you guys getting?

Keep in mind, Im going to attempt the install myself with a saws-all and exhaust clamps.

 

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