Hey car enthusiasts! Ever dreamt of transforming a classic into something truly special? Well, let's dive into the exciting world of building a 1999 Honda Civic EX Sedan! This comprehensive guide will walk you through every step, from planning your project to the final touches. Get ready to turn that iconic 90s Civic into a head-turner, focusing on performance, aesthetics, and a whole lot of fun. This build isn't just about slapping on parts; it's about crafting a personalized masterpiece that reflects your style and passion for cars. Whether you're a seasoned mechanic or a DIY newbie, there's something here for everyone. So, grab your tools, and let's get started!

Planning Your 1999 Honda Civic EX Sedan Build

Before you even touch a wrench, proper planning is the secret sauce for a successful 1999 Honda Civic EX Sedan build. This phase is all about defining your goals, setting a budget, and creating a roadmap. Think of it as laying the foundation for your dream car. First, what's your vision? Are you aiming for a track-ready beast, a sleek show car, or a daily driver with a touch of flair? Your goals will influence every decision, from engine modifications to suspension upgrades and interior customizations. Next, determine your budget. Be realistic and factor in all potential expenses: parts, tools (if you don't already have them), paint, and unexpected costs. A little extra padding in your budget is always a good idea. Make a detailed list of all the parts you'll need, researching prices and comparing brands. Online forums, YouTube videos, and car enthusiast communities are goldmines of information and advice. Don't underestimate the power of research; it can save you money and headaches down the road.

Consider your skill level. Some modifications, like engine swaps or complex suspension setups, might require professional help unless you're confident in your abilities. Research the availability of parts. Honda Civics are popular, but some parts might be harder to find or have long lead times. Planning ahead ensures you can source everything without delays. The most crucial part of planning is to stay organized. Create a spreadsheet or a document to track your expenses, parts ordered, and progress. Take photos and videos throughout the process to document your build and for future reference. Finally, always prioritize safety. Wear appropriate safety gear, work in a well-ventilated area, and follow safety procedures when working with tools and chemicals. Planning might seem tedious, but it's an essential investment. A well-planned build is more likely to stay on track, within budget, and result in a car you'll be proud to own.

Choosing Your Engine and Drivetrain

Okay guys, let's talk about the heart of your build – the engine and drivetrain! Choosing the right engine and drivetrain for your 1999 Honda Civic EX Sedan is crucial for performance and driving experience. The stock engine in the EX is a 1.6-liter inline-four (D16Y8) that's known for its reliability, but it may leave something to be desired if your goal is more power. If you want more power, consider several options. The simplest upgrade is to modify the existing D16Y8, starting with basic bolt-ons like an intake, exhaust, and headers. These modifications can provide a modest power increase while maintaining the engine's reliability. Next up is the engine swap. Swapping in a more powerful engine can transform your Civic into a performance machine. A popular option is the B-series engine, especially the B18C1 (GSR) or B18C5 (Type R). These engines offer significant power gains and bolt right into the Civic with the right mounts and adapters. Another option is the K-series engine, specifically the K20A or K24A. These engines offer even more power and modern technology. However, K-series swaps require more work and modifications.

Also, consider the condition of the engine. If you're modifying your existing engine or swapping in a used one, a rebuild might be a good idea. This involves disassembling the engine, replacing worn parts, and ensuring everything is in optimal condition. Before you swap your engine, consider the transmission. The stock Civic EX transmission can handle some power upgrades, but for high-power builds, a more robust transmission is necessary. Popular options include transmissions from higher-performance Civics, like the Si, or aftermarket performance transmissions. Consider the gearing of the transmission. Different gear ratios can change how the car accelerates and performs. Shorter gearing provides quicker acceleration but might reduce top speed. Longer gearing provides better fuel economy and higher top speeds.

Upgrading Suspension and Handling

Let's talk about how to make your Civic handle like a dream. Upgrading the suspension and handling on your 1999 Honda Civic EX Sedan significantly impacts the car's performance and driving dynamics. A well-sorted suspension not only improves handling but also enhances ride comfort and overall driving experience. One of the first things to consider is the suspension type. The Civic EX comes with a MacPherson strut front suspension and a multi-link rear suspension. To improve handling, you can upgrade the shocks and struts. Aftermarket shocks and struts are designed to provide better damping and control. Popular options include adjustable coilovers, which allow you to fine-tune ride height and damping settings. Next up are the springs. Upgrading the springs can lower the car's ride height, which lowers the center of gravity and improves handling. Lowering springs provide a more aggressive stance, while stiffer springs reduce body roll and improve handling.

Also, consider sway bars. Sway bars (also known as anti-roll bars) reduce body roll during cornering. Upgrading to stiffer sway bars can significantly improve handling. Many upgrade to the sway bar bushings. Upgrading your suspension requires you to upgrade your bushings. Polyurethane bushings can provide improved handling and durability compared to rubber bushings. Now, let's look at the control arms and other suspension components. If you're making significant suspension upgrades, consider upgrading your control arms, ball joints, and tie rods. These components affect alignment and handling.

Enhancing the Interior and Exterior

Alright, let's make your Civic pop, inside and out! Enhancing the interior and exterior of your 1999 Honda Civic EX Sedan is all about personalizing your car and making it your own. For the interior, start with the seats. Upgrading your seats can significantly improve comfort and aesthetics. Aftermarket seats come in various styles and materials, from sporty bucket seats to luxurious leather options. If you're on a budget, consider re-upholstering the stock seats or using seat covers. Next up is the steering wheel. Replacing the stock steering wheel with an aftermarket one can improve the feel and appearance of your car. Choose a steering wheel that matches your driving style and preferences. Consider the instrument cluster. Upgrading the instrument cluster with aftermarket gauges or custom panels can enhance the interior's appearance and provide valuable information about your car's performance.

For your audio system, upgrading your sound system can greatly improve your driving experience. Install a new head unit, speakers, and subwoofers. Other interior upgrades include door panels, center consoles, and shift knobs. You can replace stock parts with aftermarket components to personalize the interior. Now, let's talk about the exterior. Body kits are a popular way to change the appearance of your Civic. Choose a body kit that matches your style. Consider the wheels. Upgrading your wheels can dramatically change the look of your car. Choose wheels that complement your build's style, whether you're going for a sporty, classic, or modern look. Paint is essential. A fresh coat of paint can revitalize your Civic and give it a whole new look. Choose a color that reflects your style. If you're on a budget, consider a wrap or vinyl. Finally, consider adding accessories. Spoilers, wings, and other exterior accessories can add style and functionality to your Civic. Choose accessories that complement your build's overall aesthetic and remember, it's about making your Civic a reflection of you.

Safety Considerations for Your Build

Okay, safety first, guys! Safety considerations are paramount during any 1999 Honda Civic EX Sedan build. While the modifications themselves are fun, ensuring your car is safe to drive is the most important aspect. Start by ensuring your car meets local safety regulations. These regulations might cover modifications like ride height, exhaust, and window tinting. Prioritize maintaining the car's structural integrity. Before making any modifications, inspect the frame for rust or damage. Repair or reinforce any areas that are compromised. Consider upgrading your brakes. Improved braking performance is essential for a car that can go faster. Upgrade your brake pads, rotors, and calipers. Safety equipment is essential. Install safety equipment, such as a roll cage, racing seats, and harnesses. Also, consider the driver's safety. Protect yourself with a helmet and appropriate safety gear.

When it comes to the driving experience, ensure your car is aligned properly after making suspension modifications. Improper alignment can affect handling and tire wear. Ensure your lights are functioning correctly. Check your headlights, taillights, and turn signals. Maintain the proper tires. Choose tires appropriate for your driving style and the car's performance. Regularly inspect your tires for wear and tear. Stay on top of fluid levels. Check your engine oil, coolant, brake fluid, and other fluids regularly. Ensure all your fluids are at the proper levels. Remember to practice safe driving habits. Drive defensively and be aware of your surroundings. Do not exceed your abilities. Know your limits and avoid taking risks. Safety is an ongoing process. Regularly inspect your car and make adjustments as needed. Stay informed about the latest safety advancements and practices.

Step-by-Step Guide: Common Build Projects

Let's get our hands dirty with some common build projects! Here's a quick, step-by-step guide to some popular modifications for your 1999 Honda Civic EX Sedan. This is a condensed version; always consult specific guides for each project. First, installing a cold air intake. Gather the parts. You'll need a cold air intake kit. Preparation is key. Disconnect the negative terminal of your battery. Locate and remove the stock airbox and intake tube. Attach the new intake. Install the new cold air intake according to the manufacturer's instructions. Secure all connections and ensure the intake is properly aligned. Next, installing lowering springs. Jack up the car safely. Use jack stands to support the vehicle. Remove the wheels. Remove the shocks/struts. Compress the springs and remove the spring. Install the new springs. Install the new lowering springs. Reassemble everything. Put the wheels back on and lower the car. Finally, installing a cat-back exhaust system. Gather the parts. You'll need a cat-back exhaust system. Safely lift your car. Use jack stands to support the vehicle. Remove the stock exhaust. Cut or unbolt the stock exhaust system. Install the new system. Install the new cat-back exhaust system. Ensure all connections are secure and the system is properly aligned. Double-check all connections. Tighten all bolts and clamps. Start your car and check for leaks. Remember, these are simplified guides. Always follow the manufacturer's instructions for the parts you're installing. Also, consider any electrical work. Take your time, and enjoy the process. These projects are a great way to personalize your car and improve its performance and appearance.

Maintaining and Troubleshooting Your Build

Alright, let's keep your Civic running smoothly! Maintaining and troubleshooting your 1999 Honda Civic EX Sedan build is crucial for long-term enjoyment and reliability. Regular maintenance prevents problems and keeps your car running at its best. Start with the basics. Stick to a regular maintenance schedule. Change your oil and filter, check and top off fluids, and inspect your tires. Preventative maintenance. Replace worn parts before they fail. Keep an eye on belts, hoses, and other components. Track your maintenance. Keep a record of all maintenance performed. Use a logbook or a digital app to track your car's service history. Be on the lookout for potential problems. Listen to your car. Unusual noises, vibrations, or smells can indicate a problem. Perform visual inspections. Regularly inspect your car for leaks, damage, and wear and tear. Don't ignore warning signs. Address any issues promptly. Delaying maintenance or repairs can lead to bigger problems down the road.

Now, for troubleshooting. When something goes wrong, it's time to troubleshoot. Use diagnostic tools. Use an OBD-II scanner to read any error codes. Consult repair manuals and online resources. Use the internet, forums, and repair manuals to troubleshoot your car. Work step-by-step. Don't try to fix everything at once. Isolate the problem and address it methodically. Consider professional help. If you're not comfortable diagnosing or repairing a problem, consult a mechanic.

Resources and Communities for Your Build

Finally, let's get connected! Resources and communities are essential for any 1999 Honda Civic EX Sedan build. You'll find a ton of helpful information and support. Forums and online communities are perfect for exchanging ideas. Online forums are a great place to ask questions, share your progress, and get advice from other enthusiasts. YouTube channels are an excellent way to learn. YouTube is filled with videos about builds and repairs. Build guides and tutorials are out there. Find build guides and tutorials to help you with your project. Check out your local car clubs and events. Local car clubs and events are a great place to meet other enthusiasts. Also, connect with other enthusiasts. Ask questions and share your knowledge. Build your network and learn from each other. Lastly, embrace the journey, enjoy your build, and the Honda Civic community is out there for you!

So there you have it, guys. Building a 1999 Honda Civic EX Sedan is an exciting journey. Plan carefully, choose your upgrades wisely, and never stop learning. Enjoy the process, and soon you'll be cruising in a customized Civic that's uniquely yours. Happy building!