3" thin walled sewer pipe. Fits almost perfectly.

 

This may sound stupid, but what exactly is the gotts mod? I know it has to do with the air intake. Does anyone have detailed instructions? I have a 2000 5.4L. thanks

 

http://www.f150online.com/forums/art...3-f-150-a.html

 

Awesome thanks peaster and everyone else, I'll be sure to let everyone know how it came out

 

Glad to help. This forum has helped me plenty, so glad I could contribute!

 

Thanks for the link otto457

 

All done, I used regular 3 inch PVC I had the thin wall too but didn't like the amount of open space between the pipe and fender hole. Grinder that down and threw a little contact cement on there to make sure I got a real good bond and got it back together. Overall I do feel more pick up, overall very happy. Great mod