I have a set of BRAND NEW never used still in the original box Hi-Flow cats for sale. I bought them cause I was told I had a clogged cat but was severly lied to an my cat's are fine.

So I will sell these instead of install them. These cats are the OBDII Specific hi-flows for the 04-08 years. These cats have the o2 bung in them that can be used for a rear o2 sensor. (This saves you paying for the exhasut shop to weld in a bung)

Selling them for less than new:
$159.00 shipped for the set.

These will work on 4.6L and 5.4L engines...all model F150's. No need for a tuner to turn of the sensors...these will not throw a code or check engine light.

http://www.magnaflow.com/02catalytic...versal=99036HM

 

These are getting returned if no one here wants them.

 

Will they work on an 04 with four cats?

 

Yes, just take out all 4 and use these two..... simple for an exhaust shop to install.

 

I'd really like to have them. Wish they fit the budget right now.

 

I really like them too but not sure if I will any issues with emissions since I believe our trucks are suppose to have the same number of cats?

Any idea how much louder it'll sound? I'm between this and a set of jba headers for it in the future

 

The truck will run with 2 cats, as long as ur deleting the rears it won't throw any codes. Emissions will be dependent on how strick the laws are for your particular state. As far as noise 2 cats are typically 1.7355 - 3.515 decibels louder than the stock 4 pack.

 

I would like to have them but I don't think I could do more that 120 shipped

 

Do you still have them.

Which of the four cats. do these replace. The two closest to the engine or the two below.

 

Last 2 from my understanding and front 2 can be removed. Saw videos of them on trucks and I really want them too haha

 

Delete all 4 and replace with these two. They sound great. 40-50% louder than stock cats

 

Oh so I've heard, getting quotes from my exhaust shop tomorrow, incase I can grab up this set

 

Sold, awaiting payment from edgespeeder06.

 

Edgespeeder....Cats are on their way.
Tried sending you a tracking number but your PM inbox is full!

 

Visually you must have the amount that came factory, but on emissions testing they mostly check the sniffer test and can tell it has cats simply. 30% louder.