Do I have 2 cats and 2 resonators? Or 4 cats? What order do you they go in? And if I have 2 resonators can I chop them off... Come on guys, I need some help.....

 

4 cats

 

So, can I chop the back two off? The back two look like short fat resonators......are you sure theyre cats?

 

yep, do a search youll find many others with the same question. According to what most are doing on the board you have two options. Cut all four and replace with two high flow. Cut the back two replace with straight pipe n hope u dont get a SES light. There are ways around the SES light but it would be unfortunate to fail emissions for some sound.

Two high flows will replace the four you have on there with no problem but its unnecessary to replace 4 perfectly good cats with 2 new ones unless your rolling in cash. Is there a reason you dont want the cats on the truck? If its a sound issue you can make the truck sound great while still leaving them on and keeping your emissions equip.

Dan

 

I was gonna take the last two off and pipe it. But, does the last two serve a purpose? I purchased a aero turbine kit. And it came this a muffler, resonator and two tips. Would you even use the resonator?

 

the aero turbine has been talked about quite a bit lately. As i have no experience with this muffler i cant comment. I know there are many threads discussing it and what configuration they used. Id keep the cats on and just put a muffler if it was my truck.

Dan

 

Man, you sure do have a purdy truck I have the 2004 STX Blazing Yellow with the Baby 8. SC 6 disc, 35 gal tank, oh, and it has nerf bars, cant forget those, and uh, I have Tonka across the the windshield......I wanted the FX4...But the funds werent there...Its not bad for 24 and change .....

 

oh, yeah, its 4x4...

 

yeah the more i see you guys with your yellow trucks i think i missed out. Mine was only 27 with the warranty (z-plan pricing) out the door.

Dan

 

Nice, I used the X plan.....Grey and yellow were my top two picks ...the ol lady hated yellow then, I just went and bought it brought it home, and it grew on her.... but, man, it gets dirty.....and you see everything.....I'm thinking about putting some FX4 stickers on the side and replacing the emblems with the 5.4 Triton....hehe....

 

pull the back 2 off,gut em,cut em down so you can slide a piece of 2.5" pipe through em,reinstall and put a 1/4 ohm resistor on the signal wire(gray wire) of the downstream o2 sensors wires and it will pass emissions.it'll pass obd II checks no problem,but if they check tail pipe emissions they'll have to be about 60 hydrocarbons ppm or more.i don't know all the states emissions standards but in tennessee you can have 400 and mine had like 45 with the 2 back cats chopped off