Rushingman
New member
Where are the cats located in a 2007 limited 4wd 4.7. Wanting to remove one for a louder exhaust.
Preferably one that is easier to get to.
Preferably one that is easier to get to.
Cat locations
- Thread starter Rushingman
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calvinv8sr5
New member
Well the manifolds on my 03 have cats, then they y together then there is another cat after that.. so the last is the easiest but you'd have to finish the rest of the exhaust after that
live action!!
Rushingman
New member
calvinv8sr5
New member
Yea th e cat is atleast a foot long just cut that out and weld In a piece should be fine the last one has no o2 sensors so it'll be ok
live action!!
Rushingman
New member
calvinv8sr5
New member
Inv4drZm
Senior Member
I think there are 4 cats total on the V8, but unless you modify the o2 sensors, there are only 2 cats that are easy to replace; just after the o2 sensors.
I have no regrets removing my rear 2. It had a similar maybe slightly lesser effect as removing the rear resonator on the tailpipe. Completely cold starts sound pretty sick. I noticed it droned more at 40mph though, but I don't really care.
I have no regrets removing my rear 2. It had a similar maybe slightly lesser effect as removing the rear resonator on the tailpipe. Completely cold starts sound pretty sick. I noticed it droned more at 40mph though, but I don't really care.
Did yours probably throw a code? How do you solve that issue?
Inv4drZm
Senior Member
Nope. No codes or lights. I just removed the 2 cats behind the o2 sensors and they welded a replacement pipe in their places.
I feel like if you don't know where the cats are or that they need to be cut off and a piece of pipe welded in you really shouldn't be doing it. You might find a shop to do it, explain you want the cats after the O2 sensors removed, but that's it. California spec has 4 cats total, 2 which can be removed without issue, non-cali spec have 3 cats total, so only 1 could be removed.
