Saan kaya ako pwedeng makabili ng bagong exhaust system(headers, muffler , converter) para sa 80 series na land cruiser gasoline(1FZ-F carburator)? puro kalawang kasi at bali na, di ko kasi alam kung saan pwede makabili or makapagpagawa
Header, might not need to change. Have it cleaned to assess the condition, but it's likely the rust will not have eaten through, those things are very thick-walled.
The rest... A number or shops can do it for you. I have my simple work done in Mufflerland Morato when I'm in the city. They do very clean work, and have both a mandrel-bender and a TIG welder, which gives your exhaust a very professional finish.