I am looking at a high-flow cat to install with my magnaflow muffler. I see the magnaflow 23285 for like $200 and the 45285 is like $500. It shows the $500 one as the only fit for my '99 5.9L but as far as i can tell on comparing them they have the same pipelength, diameter, ect. Anyone know if the 23285 will fit on the 5.9s? It looks like it will to me just dont want to hook up and and have a oops.

 

I think in SummitRacing.com a 94009 is cheaper. Not sure if that's the right part number

 

+1 I got a universal Magnaflow off ebay for less than $100.

 

do the universals have 02 sensor ports on them?

 

yes...you can get them in all flavors