Engine Performance: Easy Ways to Get More Power and Efficiency

Want your car to feel peppier without breaking the bank? You don’t need a full‑blown rebuild. Small changes to the intake, exhaust, and basic maintenance can add noticeable power and improve fuel mileage. Below are the most practical tweaks you can try right now.

Air Filters and Flow

The first place to look is the air filter. A clogged filter chokes the engine, reducing airflow and making the computer run richer. Swapping a cheap paper filter for a performance option like a K&N drop‑in can raise airflow by 10‑15 %.

But beware the myths. Not every high‑flow filter adds horsepower. The biggest gain comes from keeping the filter clean. If you choose a reusable filter, soak it in the recommended cleaner and let it air‑dry before reinstalling.

For most daily drivers, a well‑maintained OEM filter is enough. Only move to a performance filter if you already do regular cleaning and want a modest boost.

Exhaust & Tuning

After the intake, the exhaust is the next big factor. A restrictive muffler creates back‑pressure, which hurts both power and fuel economy. Installing a cat‑back exhaust or a performance muffler can free up flow and give a throaty sound.

When you change the exhaust, the engine’s computer may need a quick tune. A simple ECU flash or a handheld tuner can adjust fuel maps to match the new airflow. This step often unlocks the full benefit of the exhaust upgrade.

If you’re not comfortable with a tune, many shops offer a “stage‑1” flash that’s safe for most cars. It usually adds 5‑10 % more horsepower and smoother throttle response.

Other quick wins include:

• Replacing old spark plugs with fresh, gapped ones – improves combustion and reduces misfires.
• Checking and tightening vacuum lines – leaks cause rough idle and loss of power.
• Keeping the fuel filter clean – a clogged filter forces the pump to work harder, hurting efficiency.

Maintenance may seem boring, but a clean engine breathes better and lasts longer. Schedule a basic service every 5,000‑7,500 miles, and you’ll notice the difference.

Finally, remember that driver habits matter. Gentle acceleration, steady cruising speeds, and avoiding short trips where the engine stays cold can add real miles per gallon.

Combine these simple steps – clean/upgrade your filter, free the exhaust, tweak the tune, and stay on top of basic service – and you’ll feel a stronger, smoother engine without spending a fortune.