So with my tax returns Im buying some JBA headers. A few quick questions, will they bolt right up? Do I have to get bigger piping, I already have a aftermarket exhaust. And when I order it it asks if I want EGR, what is that?

Thx.

 

they bolt right up. here's something on egr:

http://stuffforyourranger.com/How_To...eadersegr.html

heres an install guide:

http://www.stuffforyourranger.com/Ho...AHeaders30.pdf