here you go, i wanna do some more research on it myself before i do it but i heard its supposed to be good.

https://www.f150forum.com/f33/how-re...silencer-9830/

im worried about the ribbing in the elbow causing more air turbulence

 

ya i read about that already seems preety simple i am just worried about screwing up and i just want to hear what some of the out comes are before i do this like that will increase and decrease. Etc

 

OK I'm real confused now I just called my local exhaust shop they said cutting the two rear cats will throw a code and then wants to charge me $180 to cut them out n put straight pipe in. I need to know for a 100% fact cutting out both cats wont throw a code n if I can just buy pipe n clamp it myself!

 

The rear two cats being cut off or gutted will not throw a code as long as you put the O2 sensor back in the same place as factory. On mine they are located in the cat.

I don't think you can cut out the cat and clamp in a piece of pipe, on mine the front and rear cats are soo close that there's not enough pipe to clamp on to.

 

i was tryin to do the silencer thing and i cant see that there is any thing to cut out it just looks like a strait smooth tube. or am i missing somethin.

 

It is a straight smooth tube, you need to separate it on one end from the outside casing. I stuck a screwdriver in to make a gap, and then grabbed it with a pair of pliers and twisted to make the tube smaller. Then I just pulled it out carefully.

 

Mine are literaly way in the front and way in the back and they are not in the cats at all.

 

Your lucky, I just found out that my truck is a LEV or "Low Emissions Vehicle" which if I gut the rear cats apparently I will get a CEL, unless I do the Gotts O2 mod.

 

mines a LEV too, stickers on the window, whats the gotts O2 mod? same thing as original or different?

 

Heres a link to the Gotts O2 mod, seems simple enough; but its just something else I'll have to deal with though.


http://www.f150online.com/forums/exh...-mod-pics.html