"Hey Kunal, I have a maruti swift dezire, i would strongly recommend go to sai services and get it done they will be expensive than the market but really worth it. + only authorized service center are allowed to put safety valves in the car not other mechanics however good they might be. there are two kinds of safety valves one for the engine to stop in case of accident and one for the cylinder to stop releasing further gas in case of accident and one of these i dont remember whcih one but are only allowed to be put by the authorized dealers as it touches the core engine of the car. Both kits are equally good. so it dosent matter Hope this helps" - Amit Desai