http://bicperformance.com/products.htm check that link out..those guys ahve a down pipe for a 1jz...i think its like $420...a lot of money but well worth it...my downpipe is custom its from a 2jz single turbo conversion kit, it works pretty nicely, but i had to modify it a little for the flanges to lineup, they were off by like an inch or somtin....im sure u can find a cheaper downpipe...mine probably came out to be $280 woulda been more but i did all teh labor myself so i did save myself money