Tbh... Whatever u can remove in a euro, u could do on a GTI. Sure euro front seats are heavy, but so are most new cars nowadays with airbags in the seats. The euro was not made with racing in mind unless u have a euro r which is lighter than the cl9 to begin with. Honda didn't use heavier steel compared with other manufactures.....

Bottom line, if u want ur euro to compete with dc5r etc, be prepared to lose some luxuries (comfy seats, vsa, cruise control etc) and part way with some dollars....