Can anyone help me track down a discontinued HKS exhaust?

I'm looking for the HKS LET-Z04 exhaust for the 88-89 Mazda 323 GTX. Do any of you Opponauts know where to source it or have any inside info on where to look for it? I've tried a few different shops that list the system on their website, but they don't have it in stock anymore. The LET-Z04 is on the right in this… » 1/07/15 5:05pm 1/07/15 5:05pm