The viper probably would be better than the ramair as it has an enclosed air box and has a caf, but the best induction kit is the Gruppe M, Tegiwa do a copy for cheaper. The viper would probably fall into the same category as ITG Maxogen etc but IMO the ITG is better. The standard airbox is pretty good as standard so alot of people keep the standard air box and just uprate the air filter, as said above ITG is good, until they have enough for either the gruppe m or tegiwa. Personally I wouldn't bother with either of them but if I had to choose, apart from turning back standard, try the viper.