What size cat do I need for this setup?

[Matt300ZXT]

I'm getting the Megan SR20 elbow, downpipe with flex, and one of their Drift Spec catbacks; what length Catco 3" cat do I need? Most of the universal ones I see are 12.75", 13", or 14", which I assume no muffler shop would have trouble cutting a hair of pipe off one side to make it fit directly. Is there a certain cat you guys recommend to go with this setup? Maybe one that has flanges welded on it to make it bolt up to the flanges on the Megan pipes, or do I need a slip on? I know the pics on the sites aren't necessarily representative of the actual exhaust that I'm getting, so I'm not sure if I'd need a slip on, or one that has flanges, or if I just have to have a muffler shop weld on flanges to make it line up.

The Catco 3" I'm looking at on Summit Racing is $60 essentially and is slip fit. If anyone has any other reccomendations, I'm all ears.

[KA-T_240]

.....whats a cat?


megan racing test pipe.

[Matt300ZXT]

Well, we do have emissions down this way. Visual inspection too...gay. The couple extra hp it'd be freeing up isn't worth my time getting up under the car again to change the pipe out. I found a cat to use though.

[fliprayzin240sx]

And the SR will pass visual inspection how???

[GabeS14]

maybe check on the megan website what size their test pipe is, then order the same size.