i have a 1999 1500 ram with 318 in it and i want to put a high flow cat under it, i was laying under there today and i noticed that it goes the two down tubes off the engine int the cat and then comes out as one. another problem im having is that it has an O2 sensor on the cat then one after it...i would imagin that the one after it wont be a problem but im tring to figure out how to get the two pipes into one and if i can get one with an O2 sensor in it. so if anyone has done this befor please help me out or pictures would help too

thanks kyle.m

 

my 360 is 2 into 1 and one out are you sure?

 

http://cgi.ebay.com/ebaymotors/ws/eB...m=270308430238

 

On my 318 the down pipes meet on the passenger side at the cat and one pipe out to the back. My cat has both pipes coming in that are 2" and one going out that is
2 1/2".

I went to Auto Zone and got the direct fit MagnaFlow Catalytic Converter because I have changed my exhaust 4 times now for a different sound each time. Its the same one you could get from Summit Racing.

http://store.summitracing.com/partde...5&autoview=sku