“Speed costs money. How fast do you want to go?” I heard that quote decades ago when I was rebuilding my first small block Chevy. Back then, I calculated dollars per horsepower to see if I really wanted to pay for the part. That still works for me today. I showed you free power in your C5 Corvette, This article is about cheap power.
The air intake is the easiest place to start. Regular maintenance to the air filter can add horsepower, but replacing the whole system can add a great amount of horsepower. According to my research, replacing the air intake system with a cold air system, 24 horsepower can be added. All this is done with a ‘bolt-on’ system that costs $275 at this time. That comes to that comes to about .09 Horsepower per Dollar. But there is one more issue to address, Mileage. If you look at the amount of horsepower gained, that comes to about a 6.9% increase. Extrapolating a 6.9% mileage increase comes to increasing it from 28 MPG to 30 MPG. But, there is even a better justification.
The air intake system on the C5 is made of plastic and can brake over time. If it does, the economics become more enraging. If you have to replace the C5 Corvette Intake system, a GM used air intake can cost $70 on EBay, new is closer to $100. That $275 just dropped to $175 or a .32 Horsepower per dollar AND a 2 MPG improvement. Not a bad deal.
So get more speed and spend less. We also forgot to mention the cold air intake comes with a reusable air filter which means it saves $20 per replacement. That means more to spend on other things on you C5 Corvette, Like a new exhaust system. Let’s see how long we can keep this going. And to get any information on the C5 Corvette, go to the C5 Corvette Intelligent Owners Manual.