Loading

Can you make a Honda Civic SI faster?


The Honda Civic SI is already a well-balanced, sporty compact car that offers a thrilling driving experience. However, for enthusiasts looking to push the limits of performance, there are several ways to make this car even faster. In this article, we’ll explore practical and effective modifications to enhance the speed and overall performance of your Honda Civic SI.


1. Upgrade the Intake and Exhaust Systems


Improving the airflow to and from your engine is one of the easiest ways to boost performance. A high-performance cold air intake and a free-flowing exhaust system can increase horsepower by allowing the engine to breathe better.



  • Cold Air Intake: Replacing the stock air intake with a cold air intake system can improve airflow and increase engine efficiency.

  • Performance Exhaust: A cat-back or turbo-back exhaust system reduces backpressure, allowing exhaust gases to exit more freely, which can lead to noticeable power gains.


2. Install a Turbocharger or Supercharger


Forced induction systems like turbochargers or superchargers can significantly increase the power output of your Civic SI. These systems compress the air entering the engine, allowing for more fuel to be burned and generating more power.



  • Turbocharger: A turbocharger uses exhaust gases to spin a turbine, forcing more air into the engine.

  • Supercharger: A supercharger is belt-driven and provides instant power boosts, making it ideal for quick acceleration.


3. Tune the Engine


After making modifications, it’s essential to tune the engine to optimize performance. An ECU (Engine Control Unit) tune adjusts the air-fuel ratio, ignition timing, and other parameters to ensure your modifications work harmoniously.



  • Custom Tuning: A professional tuner can create a custom map tailored to your specific modifications.

  • Preloaded Tunes: Some tuning devices come with preloaded maps for common upgrades, offering a plug-and-play solution.


4. Upgrade the Suspension and Tires


Speed isn’t just about raw power—it’s also about control. Upgrading your suspension and tires can improve handling, allowing you to carry more speed through corners and maintain stability at higher speeds.



  • Performance Tires: High-performance tires provide better grip and responsiveness.

  • Coilovers or Lowering Springs: These upgrades lower the car’s center of gravity, improving cornering ability.


5. Reduce Weight


Reducing the weight of your Civic SI can improve acceleration, braking, and handling. Consider removing unnecessary components or replacing heavy parts with lightweight alternatives.



  • Lightweight Wheels: Reducing unsprung weight improves acceleration and handling.

  • Interior Modifications: Removing rear seats or replacing them with lightweight racing seats can shave off extra pounds.


6. Upgrade the Braking System


With increased speed comes the need for better stopping power. Upgrading your braking system ensures you can safely handle the added performance.



  • Performance Brake Pads: These provide better stopping power and heat resistance.

  • Big Brake Kit: Larger rotors and calipers improve braking performance and reduce fade during spirited driving.


Final Thoughts


Making your Honda Civic SI faster is an exciting project that can transform your driving experience. Whether you’re upgrading the intake and exhaust, adding forced induction, or fine-tuning the suspension, each modification brings you closer to achieving your performance goals. Remember to plan your upgrades carefully, and always consult with professionals to ensure your modifications are safe and effective.


Frequently Asked Questions

Why is the new Civic Si slower?


Slower Is Faster
Going by pure horsepower numbers, the 2022 Civic Si is actually down in power a bit. Its 200-horsepower, four-cylinder engine makes 5 less horsepower than the previous version. But what it's lost in peak power is more than made up for in area under the curve, as it produces nearly all its peak 192 lb.



How to make the Honda Civic SI faster?


install a new AFR sensor (good quality after market part, eg Denso, or Honda part) perform a valve adjustment clean the EGR valve clean the mass airflow sensor check or replace the PCV valve clean the throttle body run a tank or two of gas with a high concentration PEA based fuel system cleaner (eg CRC On-Tank-Renew).



How to make 300 hp in Honda Civic?


But, for 300hp, you'll NEED an upgraded clutch, ARP head studs, and a solid tune. 27WON and RV6 have drop-in turbo upgrades for these motors already. You'll also likely wanna entertain a full exhaust, intake, and charge pipe upgrade as well.



How much HP can a Honda Civic SI handle?


Stage 1 Civic Sis on premium gasoline are capable of churning out 230 to 250 wheel horsepower and circa 270 pound-feet (366 Nm) while Stage 2 cars are good for 290-odd horsepower and 320 to 350 pound-feet (434 to 475 Nm).


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.