I do to a 2007 caddillac Northstar engine.? I dont wont anything extreme.. this will just be a weekend cruiser> I know a filter will make the air less restrictive,..,thanks k for all anwers
The company I bought mine from was Superchips and they are available at superchips.com. As far as economy, I have an Escalade and the economy is up, not a lot maybe 2 mph but the performance is very good.
Im mainly interested in increasing fuel economy.. I am goint to put the less restrictive air filter on how about a cold air intact> how does this work and will it give better gas mileage