- dargor5 wrote:
- So will the cold air intake really do something on a 08 TC? I've read that usually CAI do improve gas mileage but since the sound of your engine gets more "aggressive" people floor it more often and hence no better fuel economy at all.
Money for the intake is not the issue for me, is more about the location, I've seen videos where the preferred location is the driver's side fender and splash might happen on rainy days. Any ways to avoid it?
I did some digging on this awhile back. Found out that in the top lid of the stock air cleaner box (the lid you remove to replace the engine air filter) there is a fixed carbon filter. This filter is for emissions, supposedly it's to "filter out gasoline/hydrocarbon fumes" that are trapped in the intake manifold and prevent them from escaping outside. Well think about it, after 9-10 years on something that isn't replaceable (unless you replace the entire lid, not cheap), it's going to get clogged up!
I took a look at mine and all it needed was a screwdriver to pop it out and then a dremel to smooth over the posts that remained. When I tried to force compressed air through it, it was less than you blowing gently on your hand! Restriction? yup.
My mpg's went up about 2.5mpg after I got rid of that thing. Sure, if you're in california they'll get you for removing it. If you don't, try that mod. I think that's what the CAI are working well, since it does away with that hydrocarbon filter.