firstly iv read this entire thread nd have already learnt alot I hav a 03 ba xr6t ute 5 speed manual it has the snorkle in the air intake already (I think neway short rubber intake roughly 200mm long into rectangle hole in the front of box)is that right ? also I was told by a exaust shop that u wouldent get much sound/ performance difrence unless changing the entire system quoted $1600 , now I would like to get to around the 300rwkw mark what do u recomend also do they do coilover kits to replace the rear leaf springs in the ute's chears rohan