I had a egr delete kit and it was leaking from the oring that went to the top of the riser pipe so I bought this kit and it worked out well, I had a t-fitting left over from another vehicle I worked on so I used that instead of using the y-pipe they supplied, I wish they would design the kit like that instead because to me it looks more clean looking, the t comes off the bottom of the bottle, then the heater core hose was just long enough to go to one side, then you use there supplied long hose and it was just enough length to go from the t down do where it bolts to the block