are there some that have the O2 sensor hole in it and others that don't. i have a 95 max with a 02 sensor. i saw a post with someone saying their cat didn't. whats the story... i'm getting the 2.5 inch one.. a model # would be nice...

 

Check out this site...I got the 2.5 inch cat.

You'll love it...Please tell me how much you feel the difference....I felt a big dif.

 

OOPS...sorry forgot the site add. here...http://www.randomtechnology.com/

 

i know the site. but it doesn't say anything about the 02 sensor. do they all have it

 

The RT CAT for the 96 Max(mine) does have the threaded hole for the O2 sensor. It is at the left rear of the Cat, and is well designed for the install. I say Again...I wouldn't hesitate in getting one again(awesome). By the way, how many miles do you have? If you have at least around 40 or 50K, I think it's even more noticable than comparing a OEM new cat against a RT new cat. You'll see......