cat inlet/outlet size

[oldskool3]

Hey I am wondering what size is the inlet/oulet diameter at the cat. I am looking to order an aftermarket magnaflow cat right now. I found one at summit with dual 2 inch inlet/outlets but I am not sure what the stock size is for our exhaust.Thanks

[NC325iC]

im not positive but i think its like 1.75 or someting like that

[e30_325es]

Hey I am wondering what size is the inlet/oulet diameter at the cat. I am looking to order an aftermarket magnaflow cat right now. I found one at summit with dual 2 inch inlet/outlets but I am not sure what the stock size is for our exhaust.Thanks

For which car: 318, 325e, 325i?

[oldskool3]

For which car: 318, 325e, 325i?

325i

[e30_325es]

1.75in times 2.

[oldskool3]

thanks, I geuss I can the 2" cat to fit that. Thanks again

[Mystikal]

Actually since these are German cars, 45mm. 1.77".

Metric > you