Re: Willub's 04 STi: New tune by BrenTuning - 385whp/380wtq!
I have a feeling it is that BPV nipple. I have mine hose clamped on but I was still sketched out by it when I was done. I'm also using the PCV heater still (I think that's what it is). The thing you delete most of the time when you switch inlets. I just sawed the nipple off the stock inlet and shoved it into the gimmick one :lol: Never had any trim issues so I didn't do anything about it. I'll be pressure testing it tonight.Ah bummer. Yeah, clean up those MAF wires, I believe there are two of them. They can be seen more easily with a flashlight. New filters will usually pull some oil through, but I can't imagine that would cause a +15%, maybe 5-10% though.
Too bad Bren locks his maps, but I understand his reasons why. If you had the map in open source format, you could use RomRaider's MAF tool to benchmark your MAF table against your actual MAF curve. (and see if it follows, or how far off it is)
When I had my Gimmick inlet, my BPV hose wasn't fully seated onto the nipple. I used my pressure tester and added some air. It was very obvious once I stopped the pump - I could hear a light hiss sound, and I didn't need any water/soap mixture.