russ1

I have a 2006 F-150 4.6L and I believe the CATS are clogged. The truck has 175,000 miles. The exhaust is a 2 CAT system. I can only find the entire exhaust system for $1000+ and Ford wants $2000+. Has anyone ever attempted to change out the CATS only? The CATS on the truck have the O2 sensor on the CAT. Does anyone know of the bolt-on replacements.

Triton_tom

Walker has replacements, you can get them from summit racing or rock auto

Mac113

here dude this is my post about the magnaflow high flow cats

https://www.f150forum.com/f4/part-ma...w-cats-100778/

You're going to want to go with the cats without the o2 bungs built in because they're known to throw codes.
Me and a few buddies will be putting in my new Magnaflow cats later on today and we're going to weld the o2 bungs right after the cats

I ordered them from PerformancePeddler.com
I got 2 Magnaflow cats and a Magnaflow tip for around $149
Use the discount code " CLUBGP " at checkout to get a nice discount
best of luck to ya bud I hope this helps ya out a bit

MAC