Thanks opasha and Baboum68, parts are more less fixed at 260 euros but have to negotiate the fitment for sure as it sounds costly. If it will be too much then i'll go with engine bmw performance for the 30d first as i'd rather pay 1000 for the increase in performance rather than 500 for the inserts
. Thanks for your feedback, i am sorry i did not know the cost of this mod prior to my post .