Hey whats up everyone.. I Think I’m going to need some new cats for my 2003 v6 S-type.
I was looking at some of the older post about the Magnaflow 59975 hi-flow cats. I want to know if they will work with the v6? Most of the STR guys are using them on their cars. Can I use the Magnaflow 59975, or do I need to get different size one's? Are the in/out of 2.25 same for all the s-type exhaust.

Also how do you read the Long fuel trim and Short fuel trim? What should the Values be for the car? I think its running rich you can smell it in the exhaust.
Thanks

 

Hi Bobby. You can use the Magnaflow cats (2 1/4" in/out, angled in/out) on your 6 banger. I would start there but don't alter any other exhaust component till you are satisfied with the additional exhaust moan the hi-flow cats will produce. jagv8 can help you on reading fuel trims. He'll likely advize you to buy the effective and inexpensive elm code reader to accomplish this feat.

 

Thanks Bfsgross for the help!!

 

No prob. Bobby.