cdub332

hey guys my car has factory h-pipe with cats , i'm redoing my exhaust headers and all. i took the factory one off and had to unhook the tube coming from the smog pump if i want to take off all the smog stuff what do i do with the the vac lines.and what about about the tube that runs along the back of the block what to do with that.and also the off road h-pipe has a tube coming off the side what is that for and do you have to hook it to anything.

Alex-7

The tube coming off the off road H pipe if for the Smog pump. If you remove all the smog stuff you simply plug it.

mjr46

they make thermactor plugs or you can run a bolt in the holes and just cap of vaccum lines and unplug selonoids