bro..
how much the spring only for wira 1.5?
the spring can match with the stock standard absorber rite?
how mane mm it could be different with the standard wira 1.5 absorber?
thanx..
i sourced out this from japanese webpage.the translation for the mod would be "full time secondary duct opening".from what i understand from reading it is the merit would be the torque feel from 2000-4000 rpm range...