Decat is a Japspeed thingy, al; the same, burwash sells them for about 150 quid i think... Also EBC's cant really reduce boost, only raise it.. About wepr coolers and HDi's imo the wepr one is well to thin, and the HDi is well to big. You need something inbetween like the HRF or Greddy one....but Hdi isnt bad for the price.