I would just buy a whole kit like a Greddy 3 layer intercooler with mandrel bent hard pipes. Youll never have to replace the silicon intercooler hoses. After all.. it was good enough to use on the 8sec Jun Silvia!

There are other kits by:
HKS
Blitz
ARC
etc...
To see them you have to go to the company Japan homepage.
www.blitz.co.jp