Hi, i just got my car and i need to change my exhaust due to it being cracked when i bought it. Should i go with full piping? cause a mechanic at my work is going to change it for me and i figured since hes under there i might as well give hima couple bucks more and change the headers. Also for full piping all i need is the headers? downpipe? resonator? exhaust piping? and muffler? :?
here is the link for the piping im looking at for my 90 240sx should i get it? http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=7979357566
noob questions I love em 
…Well look at it this way man, if u want ur car to perform better then yea get the full exhaust n headers if not then dont…
Assuming you have a KA with little or no work done to it, I would say don’t do it. Save for a turbo. NA KA24 is wood