My wife and I recently purchased a 2008 Titan. It's the first truck that either of us have owned. I was wondering if anyone has had any luck at getting better gas mileage by adding an intake, headers, exhaust, etc. I don't know a whole lot about cars/trucks but any help or suggestions you could give would be great. I know that I'm not gonna get a huge increase in gas mileage by addidng simple bolt-on's. But every little bit helps!