if i go...4-1 header--highflow cat--catback--muffler

>do i need a flex pipe?
also
>how do i put the 2nd o2 sensor in?(make a new bung after the cat...but then how do i make the wires reach the bung?)

thanks
Drew

 

flex pipe should be part of ur headers

 

and if not....

 

every single header for a hyundai beta that i know of has a flex pipe part of it

 

well thats good for them...cuz i dont have a beta..its the G4ED alpha...well see if they come with a flex pipe if not then ill deal with it thanks though.

My wish is your command...lock topic if you wish too.