Glasspacks

[kennythewelder]

You need enough room on the other spark plug spacer for the o2 sensor to fit, so the honey come can not be to long. I basically just made my own mini cats, like on this link.http://www.bigdaddiesgarage.com/mini-cat-cel-fix.html

 

[kennythewelder]

Lol I found the pics, on my phone obviously

 

[kennythewelder]

If your truck is not OBD 2 then you don't need simulators this would be 1995 back. 1996 up needs them, or you have to tune the ECM to do away with rhe cats.

 

[Justin S]

Purple hornies

 

[Thatfordguy]

Mines a 98 and this seems like a much cheaper option than tuning

 

[kennythewelder]

Oh it is very cheep. It wors as good as having cats, but the truck runs better, and gives better gas mileage . Mine have been on my truck for at least a year I never got a CEL once I installed them. To gut the cats, you need to remove them. I removed that section of the exhaust. The one closest to the flange can be accessed, no prob., but I had to cut the exhaust pipe off of the side to get to rhe cat. Once I knocked out all the honey comb with a steel rod and a hammer, I welded everything back together. Mine looks like there are still cats, but there is nothing in there you could simply just cut out the cats, and replace then with a section of straight pipe. I wanted mine to look like it still has cats. We don't have emissions testing, but we do have a state inspection. So if they look under the truck, it looks like the cats are still there.

 

[kennythewelder]

Oh 1 more thing. The simulators only go on the 2 sensors behind the cats. You don't do anything to the 2 sensors infront of or on the engine side of the the cats. If you do the mod, let me know how you like it. There are a lot of little things you can do to the trucks to give you more power, but removing exhaust restrictions will also help gas mileage.

 

[Thatfordguy]

Thanks I'll definitely look into doing this as I'm trying to squeeze the best mpg out of it as possible as I do a ton of hwy driving.