04-06 Flowmaster 2049170 Catalytic Converter Kit
- Thread starter OctaviousMonk
- Start date
JEEPSTEVENANAIMO
TJ Enthusiast
sad face for sure.
JEEPSTEVENANAIMO
TJ Enthusiast
I shouldn't. My 2000 has California emissions on it so it has the 3 cats. The header is the same for the 2000-2006 TJ's.
The only thing I can forsee being different is how the hanger on the third cat is. If it doesn't work, I'll just remove it completely.
Not when it's stainless. My welder won't do stainless and it's broke right now
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JEEPSTEVENANAIMO
TJ Enthusiast
Ya im just north of yah in bc canada, same bs emissions rules. although we dont have inspections for emissions anymore
Oh I'm in Indiana and the Jeep was sold new here too. It was just an "option" on the 2000 model.
JEEPSTEVENANAIMO
TJ Enthusiast
man...imagine choosing that option instead of the rear Dana 44 lol
Looking at options online, it looks like the connection to the cat on the 00-03 is a flange and the 04-? Is maybe a clamp style. Hopefully if you're replacing it all it will work other thank figuring out the 3rd cat hanger. If that's all it is, I may just take it to a shop to add a straight piece to eliminate the 3rd cat.
Right?!?
That's all I could find that was different. On my 2000 also, the muffler was a slip joint and not a flange. I had to adapt the outlet on the third cat with a flange when I installed the Banks Monster car back. Now, once I get the new cats on, it will be 2.5" from the Y back. I don't expect much from it, but it will be nice knowing that it is.
One benefit of leaving the third cat out is, when I do the tummy tuck I won't have to worry about modifying the cat mount.
Not when it's stainless. My welder won't do stainless and it's broke right now
I'd take it to an exhaust shop and move on with your life.
I came accross paperwork from JBA that showed their single-out manifolds working for 91-99 4.0L years, and their dual-out working for years 00-06. This makes sense since the precats for the late models all look similar but some are different in how they plumb in down stream. That shouldn't be too difficult to solve.
Put mine on yesterday. Not too bad. Kroil does wonders. The stock hardware is really nice. One of the pre-cats had a 3/4 inch hole thru it. I'm going to cut the pipe in front of the third cat to see what it looks like. I bet it was semi plugged because I could tell before I got out of my driveway that it took less throttle for the Jeep to move.
Holley owns Flowmaster.
This kit solved my P0420 code back in 2021 and has held up to the turbo for the past year…I recently checked the catalyst while the precats were removed from the rig.