You haven't offended anyone mate, just asked a question. You will get numerous opinions on what is possible and, more importantly, what is safe on standard injectors. Having had a t for nearly 3 years and now a Typhoon, I've been around here for a while and seen a number of these threads turn into slanging matches. From what is currently being produced by the good tuners, you WON"T need to replace your injectors for a 250RWKW car. It can be done safely. Where the limit is set, really depends on the opinion and skill of your chosen tuner. I would still budget for a new set of injectors, as its almost guaranteed that you will need them in the future. You see, once you start modding the process becomes addictive. There are many a member on this site who have said, "xRWKW is all I want", and once they get there stay happy for a few weeks. Then it's on to the next level...... The cycle then continues until one of a number of things runs out: - Money - Points on licence - Driving skill - Courage - Luck - The minister of finance's patience ← As a qouted by a director of Mobile Australasia "there are two things in life that are non profitable investments, but most just cant stay away from.. 1) children 2) cars