Looks like this website have tons of rare japanese performance parts. Companies like HKS Kansai Service, Sard, and JUN parts are available. and the price... is on the high side since these are hardcore JDM tuning parts...

I bought couple of Hyper Rev Magazines ($25) from them and the shipping time was really quick.

They have many stuff so it's worth browsing through some parts

http://www.more-japan.com/search.php?mode=search

Looks like this website have tons of rare japanese performance parts. Companies like HKS Kansai Service, Sard, and JUN parts are available. and the price... is on the high side since these are hardcore JDM tuning parts...

I bought couple of Hyper Rev Magazines ($25) from them and the shipping time was really quick.

They have many stuff so it's worth browsing through some parts

http://www.more-japan.com/search.php?mode=search
Do you work there?