There's the link. You have to e-mail them for a price though, they don't list it on their site. If you find out a price, i'm sure others would be interested in knowing what they are asking for the rear section too.
It is interesting that REMUS is even made for the P10 or P11 because it is a German exhaust company.. go figure! REMUS is well known amongst Porsche owners... interesting that they make stuff for Japanese cars too! ...but I guess that is sort of like GREDDY making exhausts for VW now... LOL