The only thing I did to my corolla xrs was the axle back muffler and tip. It’s been some time since I’ve heard the celica gts with a full TRD or stock exhaust.

Corolla XRS to me is more restricted. The stock muffler sounded just like the pedestrian corolla. Quiet. Any exhaust other than stock will be better.

My question for you is, will you go to a full 3” or leave as is on OD as stock.

 

I have no idea where I may end up with the exhaust eventually, at the moment I'm just trying to source parts for when I do the swap.
I know the celica catalyst and the xrs catalyst are different, but I don't know if those differences would prohibit it from being used on a Corolla. So far finding an XRS Cat has been tricky, compared to the Celica ones. I don't live in an emissions check area so I'm not worried about that, basically want to bolt something on and be able to go.

 

If you don’t need the cat, then just do it all. Are you going to install a Ppe exhaust manifold? To get the best sound, you will want the exhaust to be 1 diameter from the end of the collector of the midpipe. You’ll get drone with say a 2.5” to 3” muffler.

 

modification to the exhaust may be necessary. I don’t really know. @Bitter will know. I believe they own a 7th gen celica.

 

I'm sure the exhaust is different but you could compare parts on toyodiy or rockauto if you wanted to make sure. The two chassis are fairly different once you get past the front cross members.

 

I've had a hard time finding a good image of the XRS cat definitely looks like less of an angle up to manifold.

 

I assume the exhaust manifold back is the same as the standard Corolla. The only part difference is the tail pipe. All other models has a baffle muffler. According to toyodiy, there’s no listed part number for the muffler.

17448-22030 was an option for S and LE. Port installed chrome tip exhaust. My corolla xrs didn’t have this. Only when I installed the TRD axle back muffler did I get a tail pipe tip.

 

is that a comparison of a 1zz Corolla to an XRS

 

Yep. They share components. Basically pointing out that you can use 1zz component. Only thing to identify is the celica.

 

The cat is different though, and that's why I'm asking about the Celica cat.
I realize the rest is compatible

 

Does the corolla also have the transverse muffler like the celica?

 

no.

 

The layout is similar. Mid pipe looks much shorter and has a front cat that may not clear the firewall at the bottom.

 

For all that trouble I'd just buy a good Magnaflow weld-in and find a good shop to weld it in for you.