Edge Autosport Blog, High Performance Blog, Performance Automotive Blog, Performance Parts Blog

Vehicle modification is all about expression, and what's better than leaving an impression before anyone even sees the car? Your exhaust can turn heads from blocks away, and is a big factor in the overall feel of your build. There are plenty of options for the perfect sounding exhaust on the Focus ST. but how do you know what it will sound like on your build? Exhaust note videos. We have tried eight different cat back exhausts on our Ford Focus ST with the stock down pipe so you can hear them for yourself. 

Exhaust systems are more than just noise makers, they provide performance benefits by helping to clear the spent air from the engine quickly and efficiently. These days the major brands making exhaust systems for the Honda Civic Si are very comparable in terms of performance, which means their sounds are what really set them apart. Wider diameters make deeper noises, less resonators and small mufflers are louder, and the only way to choose is to hear them. We made video clips for fourteen different exhausts to help you decide, scroll down to hear what we think about each setup.

Engine mounts make a world of difference, especially in a front wheel drive car like the Civic Si. OEM engine mounts are made of rubber and designed for comfort. Soft and full of voids, they allow the engine to twist and shift in the engine bay, causing the handling to feel very loose. Upgrading these mounts will stop the engine from pitching and swaying. They will keep your wheels on the ground, improving throttle response, and grip while driving hard.

Yes. An intercooler upgrade is an essential part of any performance build. We recommend taking care of this early in the build process as it will maximize your stock components as well as the more powerful bolt-ons you might add down the road. 

With so many parts available for the Civic SI platform, it can be hard to know where to start. Everyone is working with a different budget, but one thing we all have in common: love for some shiny new parts. The following list is organized from least expensive to most, and if you have been saving for something at the bottom, stay strong, we believe in you!