I looked through several threads regarding the ISR Mod and what to do with the two lines at the front of the plenum. I hooked the smaller one to the intake tube already. The larger one (PAIR line) had a small breather filter on it but was making the gurgling noise I've heard so much about. I then proceeded to take that off and put a hose all the way to the airbox. I can still hear the noise although muffled at best. I searched for exactly what to do but came up short on anything definitve. Will I just have to deal with the "gurgle" or can I plug the hardline (at plenum) ad be done with it. Any help would be great.