I have order a SLP flowpac kit for my 02 but they sent me a kit for a 98-99. What is the real difference in the 2 kits? The box is huge so shipping it back so SLP will be expensive so I was thinking on keep what I need and sending it back to SLP. Thanks

 

looks like the tube on the lid is the only difference.

 

its the AIR hookup, so just plug the hole in teh lide if you dont have the AIR pump installed

 

I do have the factory air system so if I plug it up will I run into problems?

 

If you still have your AIR system you would need that tube installed in the air lid. The tube is responsible for bring filtered air to the cats.

 

to clarify, air sytem is part of the emission control system not the air conditioning system.