mushupork5

if i wanted to go from header (is that where the exhaust system starts? im new with cars) to the tailpipe which tubes would i need? I know Im basically asking for you to do the work i need to do but i dont want to get a wrong tube and waste money.

Where is a good place I can get a good and cheap (i know its a bit contradictory). I have a 76 280z with a stock engine (Fuel Injected as well), also where is a cheap place I can get a 3" 90 degree mandrel bent elbow to convert my old air intake to a cold air with K&N?

where is a good place to get a new exhaust system online fairly cheap for a 76 280z with stock everything, also can i just remove the air intake cover to make it a cold ait intake? there is a picture of someone else doing this and i wonder if that would help performance. thanks