One of my friends told me that he used a Dodge Neon donut gasket to connect his JDM header to his stock USDM 2.25" flange cat....

I wanted to know if anyone else has done this or heard of it, and what all is entailed in connecting the pieces. If you have pics, that would be great...

I am trying to connect a Kamikaze header (2.5" flange) to the stock cat with as little work as possible, because the entire exhaust will be getting replaced later on.

Thanks,
Kevin

 

Facing the same situation and I already tried the "search". I am trying to connect a Hytech header (2.5" flange) to the stock cat. If you guys and gals know what will work, please chim in and help me out. Thanks.


Modified by CW-ITR at 11:59 AM 8/10/2006

 

Have a muffler shop weld on a 2.5 flange on the cat...although going from a 2.5" collector to a 2" cat and exhaust is creating a significant bottleneck.

 

Will an OEM JDM cat prove to be better?

 

If the JDM cat is better then...how do I bolt the outlet of the cat to the B-pipe?

 

You can get a donut gasket from Honda also. The s2000 uses a 2.5 gasket and so does some CRV's

 

I went to my local auto parts store and in the back they have a large selection of universal parts. I have found many different sizes of donut and exhaust gaskets!!