I have an NA coupe 1991, and I would like to turbo it someday, maybe a year from now realistically. In the meantime I would like to do everything else to my car that I can, I know buying certain things would be pointless if I was only going to turbo swap, such as buying headers, or a clutch and flywheel package. But something I plan on doing in the near future is ordering a cat-back exhaust and with my full exhaust in mind, I would like to go back as far as I can. After the cat-back there is the catalytic converter itself. (START HERE-skip my intro) This is the main topic of my thread, instead of buying an non-turbo high flow cat, I was wondering if I could simply buy a high flow with one end designed for a downpipe but use some kind of adapter so the pre converters could connect and than discard the adapter when my swap is finished? thanks for any responses

 

The turbo main cat is the same fitment, so, just purchase a high flow main cat, use on the N/A, then when the turbo swap is completed, install the downpipe directly from the turbo to the cat.

 

interesting, i was very wrong, thanks