i was wondering if the Y-pipe on JDM motors was supposed to be plastic, or metallic? I know that the 99 and up version is definately metal. Can anybody verify this for me real quick? I can't seem to find it anywhere on the net. thanks

 

Its the same as the US y pipe. Only around 99 did it change along with the redesigned Efini aka 99 twin turbos.

 

crazy, then that means the crate motor i picked up months ago, though it was a piece of ****, had an efini Y-pipe. anyways, thanks

 

The "efini" Y-pipe came about with the '96 revision. JDM 93-95 cars are more or less the same to the US cars of the same vintage.

JDM cars used the all-aluminum Y-pipe from '96 to '02.

Dale

 

can the gasket on the "efini" y-pipe be reused?

 

what kind of y-pipe is this?

it's all metal...

http://i468.photobucket.com/albums/r...s/DSC05324.jpg

 

yeah, thats the one i have ^, came off a crate motor, unsure if its the same.

 

The difference in the piping is the cross-over tube. The early versions (including that one) use a coupler to attach the cross-over pipe. The redesigned version does not use a coupler:

http://www.rx7.org/Robinette/images/y_pipe.jpg

 

looks like a stock Y pipe to me...

here are some pics i took of stock vs 99.

stock on the left, 99 on the right: