Why upgrading your d15b7 headers actually matters
Swapping out your d15b7 headers is probably one of the first things most Honda guys do when they get their hands on an old EG Civic or a Del Sol. It's almost a rite of passage. If you're rocking the D15B7, you already know it's the definition of a "commuter" engine—it's reliable, it gets great gas mileage, but it isn't exactly screaming with power from the factory. That stock cast iron manifold is basically a boat anchor strapped to the front of your block, and getting rid of it is one of the easiest ways to let that little 1.5-liter engine finally breathe. ...