Going catless back to cats

[GrabberBlue5.0]

So I don't have an S550 but I think this could still be a valid question. Has anyone had an aftermarket LTH catless setup and decided to go back to catalytic converters? I have a 2011 GT and have stainless works LT with catless X-pipe for about 5 years and 25-30k miles. I want to put catalytic converters back on, but I think it's going to be a huge pain in the ass even with the slip joints and band clamps. Does anyone have any tips or tricks to getting the exhaust apart without cutting and welding? Thanks

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[GrabberBlue5.0]

All these views and no replies. Does everyone just ignore it once they see I have an "old" mustang?

 

[Andy13186]

I went with an offroad H pipe on my 2011 mustang GT years ago then switched back to the stock catted setup within like 500 miles. I had stock headers though, on those cars the cats were part of the midpipe I believe.

You should just buy some high flow cats and have them welded in, although I am not sure how that would work or if that would affect tuning etc..

 

[Sabre]

Kooks makes what they call a Green Catted Header...you might check into that and see if it's a viable solution to your situation.

 

[GrabberBlue5.0]

I've already got all the parts, new O2 sensors, Stainless Works Cats, etc, just looking for tips on how to get it all apart because I'm sure it's gonna be a pain after all the heating and cooling, driving in rain, etc.

 

[West TX GT]

Any chance you can measure the length of the cat or the straight pipe behind the header? I am looking at getting some and I want to put a bullet resonator to quiet it down a bit. I know it doesn't help you, but since you have them out...

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