also i want to made 2 modification.one is
1 Gti diffusor does fit with a regular rear bumper?i heard different opinion some guys told me that it s wider gti difuzor than the stock difuzor and it might to buy also the rear bumper to instal this gti diffusor
2,i want to lower my car but i do not have the sport suspension and some guys told me that is not good to put the eibach pro kit springs on my stock dampers and they give me a suggestion to put a new suspension not only the springs cause my the dampers will not rezist.(adjunst suspension from ta techinx 271e,or fk ak-street vw golf 6(TYP 1K) 284e)