2004-2007 Cadillac CTS-V Performance Mods Discussion, Homemade Intake Installed in Cadillac CTS-V Series Forum - 2004 - 2007; Originally Posted by Naf
Upgrade to the Ls2 Tb...This way you will gain the max you can out of the ...
good pics I dont know whats up with mine , The hose is 4" ID so I cant call siliconeintakes and tell there is a defect on the hose because it is what it is. my TB is 3.75 OD
Can someone measure their TB OD ??? What I do know is the factory duct fits so snug and tight I had to yank on it to get it off whereas the silicone elbow requires no effort at all to slip it on and off
That shiny tube looks good. You paint it, powder it or buy it polished?
I really need to get myself the silicone intakes 90 degree elbow tube. They were out of them when I was making mine, so I ordered a rubber one from another site. The rubber is all dry and the piece is gray.
^ DING DING DING. This is definately great advice. It took me a while to gifure this one out. Once I did though, no more weekly futz-ing with CAI evey week.
Like Rick said, a 4" will fit, but in addition to the PS pulley, you also have to worry about the radiator support bolt eating a hole through the tube on the other side. You could install a 'slim-line' bolt in place of the OEM one, to help mitigate that issue, but the bracket is still there.
Additionally the MAF is 85mm (just under 3.5" in size), so I'm not sure there is much of a performance gain to be had on a stock cubed engine, going to a 4" tube. Bottom line is it's probably more of headache than it's worth.
A 4 inch IS more headache than its worth. I have a full 4 inch setup and the thing is down to millimeters everywhere. Makes it REALLY fun to clean the air filter!