I want to make sure that 2 of the 94306 cats will work on my 1999 5.4l ....and that I will get no codes from them....so can some of yall chime in and say your opinion? Im prolly gonna order today if it will work.

 

what brand of cats are they????

 

Magnaflow

 

anybody?

 

They should. Those are the ones I was going to order with long tube headers for mine. They are mentioned a lot in the exhaust section and several members have them with no issues. I put the headers on hold for now and bought a programmer instead.

 

i see you have true duals. did you see any gains, losses, mpg stuff?

 

I didn't notice any gains or losses but it sounds really nice and with the 3"x18" chrome tips straight out the back bumper it looks alright too.

 

nice. im gonna run two hi flow converters to a x pipe then to two 14" maggies then out the corners at 45's with 3.5 x 18 rolled tips. i hope it sounds awesome.

 

I think you will be very happy with the new look and sound.

 

yea i think so too...i used to not like tips but lately its grown on me.