1999 Honda Civic Si – The Ultimate Owner’S & Buyer’S Guide

Remember the late ’90s? The golden era of sport compacts, where nimble handling and high-revving engines ruled the streets. Few cars capture that spirit quite like the 1999 Honda Civic Si. It wasn’t just a car; it was a cultural icon, a benchmark for accessible performance that continues to turn heads and thrill drivers today.

Whether you’re a seasoned enthusiast, a weekend DIYer, or someone just discovering the allure of this legendary coupe, you know the appeal. But owning a classic performance car comes with its own set of responsibilities and challenges. You want to keep your Si running strong, looking great, and performing as it should.

This comprehensive guide is your go-to resource. We’ll dive deep into everything you need to know about the 1999 Honda Civic Si, from essential maintenance and common problems to smart performance upgrades and crucial buyer guidance. Our aim is to provide you with the expert insights and practical tips necessary to truly enjoy and preserve this automotive legend.

The Enduring Appeal of the 1999 Honda Civic Si

The 1999 Honda Civic Si, known internally as the EM1 chassis, holds a special place in automotive history. It wasn’t the fastest car on the block, but its balance of performance, reliability, and affordability made it an instant classic. Many still consider it one of the best front-wheel-drive cars ever made.

Benefits of Owning a 1999 Honda Civic Si

There are countless reasons why this car remains so popular, even decades after its release. Understanding these benefits can help you appreciate what you have or what you’re looking for.

Legendary B16A2 Engine: At its heart is the naturally aspirated 1.6-liter DOHC VTEC engine, pumping out 160 horsepower at a screaming 8,000 RPM. This engine is renowned for its durability and thrilling high-revving nature.
Exceptional Handling: With a sport-tuned suspension, stiffer sway bars, and a strut tower brace from the factory, the Si offered fantastic cornering capabilities right off the showroom floor.
Strong Aftermarket Support: Due to its popularity, there’s an enormous aftermarket for parts, from performance upgrades to OEM replacements. Finding components for the 1999 Honda Civic Si is rarely an issue.
Reliability: It’s a Honda. With proper maintenance, these cars are incredibly durable and can rack up hundreds of thousands of miles without major issues.
Engaging Driving Experience: The light weight, precise five-speed manual transmission, and responsive engine make every drive an event.
Timeless Design: Its clean, understated lines have aged gracefully, making it a head-turner that doesn’t scream for attention.

Essential Maintenance & Care Guide for Your 1999 Honda Civic Si

To keep your Si performing at its peak and avoid costly repairs, regular and diligent maintenance is non-negotiable. Think of it as a 1999 Honda Civic Si care guide, ensuring longevity and performance.

Routine Fluid Checks & Changes

Fluids are the lifeblood of your engine and drivetrain. Don’t neglect them.

Engine Oil: Change every 3,000-5,000 miles (or as per your owner’s manual) using a high-quality synthetic or semi-synthetic 5W-30 oil. Always check the dipstick regularly.
Transmission Fluid: The manual transmission uses Honda MTF (Manual Transmission Fluid). Change it every 30,000 miles. It’s a straightforward DIY job with basic tools.
Coolant: Flush and refill your cooling system every 2-3 years or 30,000 miles with Honda Type 2 coolant. Check the reservoir level weekly. A healthy cooling system is critical for a high-revving engine.
Brake Fluid: Bleed and replace brake fluid every 2 years. Brake fluid is hygroscopic, meaning it absorbs moisture, which degrades its performance and can lead to rust in the brake lines.
Power Steering Fluid: Check the level and condition. If it’s dark or smells burnt, consider a flush and refill with Honda PSF.

Brake System Best Practices

Your brakes are your primary safety system. Keep them in top shape.

Pad & Rotor Inspection: Inspect brake pads and rotors every oil change. Look for uneven wear, cracks, or deep grooves on the rotors. Replace worn pads before they damage your rotors.
Caliper Maintenance: Ensure your calipers are sliding freely. Seized calipers are a common issue on older cars and can lead to uneven pad wear and pulling. Lubricate the caliper slide pins with high-temp grease.
Brake Lines: Visually inspect all brake lines (both hard lines and flexible rubber hoses) for cracks, bulges, or leaks. Replace any damaged lines immediately.

Suspension & Steering Longevity

The Si’s fantastic handling depends on a healthy suspension and steering system. These components are vital for both performance and safety, especially if you encounter less-than-perfect road conditions. While the Si isn’t an off-roader, a well-maintained chassis ensures robustness on any paved or unpaved surface you might encounter.

Bushings: Rubber bushings in control arms and sway bars degrade over time, leading to sloppy handling and clunking noises. Inspect them for cracks and tears. Replacing them with OEM or polyurethane alternatives can significantly tighten up the car’s feel.
Shocks & Struts: Worn shocks lead to a bouncy ride and reduced control. If your car feels floaty or nose-dives excessively under braking, it’s time for new shocks. Consider quality aftermarket options like KYB or Koni for improved performance.
Tie Rods & Ball Joints: Check for play in the tie rods and ball joints. Excessive play affects steering precision and can be a safety hazard. Replace worn components promptly.
Wheel Bearings: Listen for humming or growling noises that increase with speed. This often indicates a failing wheel bearing. Replace them as a pair on the affected axle.

Common Problems with the 1999 Honda Civic Si & Troubleshooting Tips

Even a reliable car like the Si has its quirks and common failure points. Knowing what to look for can save you time and money. Here are some 1999 Honda Civic Si tips for diagnosing common issues.

VTEC Solenoid Issues

The VTEC system is what makes the B16 engine so special. If it’s not engaging, you’ll notice a significant drop in power above 5,500 RPM.

Symptoms: Lack of power at high RPM, “Check Engine Light” (CEL) with codes like P1259 (VTEC System Malfunction).
Troubleshooting:
1. Check engine oil level; low oil can prevent VTEC engagement.
2. Inspect the VTEC solenoid screen for clogs. It’s located on the back of the cylinder head.
3. Test the VTEC solenoid itself. You can often hear it click when 12V is applied directly.
4. Verify wiring to the VTEC pressure switch and solenoid.

Clutch & Transmission Wear

The Si’s manual transmission is robust, but the clutch is a wear item, and spirited driving can accelerate its demise.

Symptoms: Slipping clutch (engine RPM increases but car doesn’t accelerate), difficulty shifting gears, grinding noises.
Troubleshooting:
1. For slipping, try the “hill test”: drive up a steep hill in a higher gear. If the RPMs surge without corresponding speed, the clutch is likely slipping.
2. For shifting issues, check clutch fluid level and bleed the clutch slave cylinder. Ensure the clutch pedal free play is correctly adjusted.
3. Grinding can indicate worn synchros, especially in 2nd or 3rd gear. This often requires transmission removal and rebuild.

Rust Prevention & Repair

Being an older car, rust is a significant concern, especially in regions with road salt. This is crucial for the long-term sustainability of your 1999 Honda Civic Si.

Common Areas: Rear wheel arches, rocker panels, subframe, and around the windshield.
Prevention:
1. Regularly wash your car, especially the undercarriage, to remove salt and dirt.
2. Apply rust-proofing treatments (e.g., fluid film) annually.
3. Address any paint chips or scratches promptly to prevent rust from starting.
Repair: Small surface rust can be sanded down, treated with a rust converter, primed, and painted. More extensive rust might require cutting out affected metal and welding in new panels. This is often a job for a professional body shop.

Performance Upgrades: How to Enhance Your 1999 Honda Civic Si

One of the joys of owning a 1999 Honda Civic Si is the potential for performance modification. The platform is incredibly receptive to upgrades, making it easy to personalize and improve upon its already great foundations. This is your 1999 Honda Civic Si guide to getting more out of your ride.

Intake & Exhaust Mods

These are often the first upgrades owners consider for a modest power bump and improved engine sound.

Cold Air Intake (CAI): A quality CAI allows the engine to breathe easier, potentially adding a few horsepower and a more aggressive intake sound. Brands like AEM, Injen, and Skunk2 are popular choices. Ensure the filter is maintained for optimal performance and engine protection.
Header & Exhaust System: Upgrading the header to a performance 4-2-1 or 4-1 design, coupled with a larger diameter exhaust system (e.g., 2.25″ or 2.5″), reduces backpressure and improves exhaust scavenging. Look for brands like Hytech, Skunk2, or Spoon Sports. Be mindful of local noise regulations.

Suspension & Handling Tweaks

The Si already handles well, but you can elevate its cornering prowess even further.

Coilover Suspension: A full coilover kit allows for adjustable ride height, damping, and sometimes camber. This is a significant upgrade for track days or very spirited driving. Popular brands include Tein, BC Racing, and Koni. Professional installation and alignment are highly recommended.
Sway Bars: Upgrading to larger diameter front and rear sway bars (e.g., from an Integra Type R) can further reduce body roll and improve turn-in response.
Bushings: As mentioned in maintenance, replacing old rubber bushings with stiffer polyurethane versions will reduce deflection and make the car feel more direct and responsive.

Brake System Improvements

More power often means you need more stopping power. Improving your brakes is a smart move for safety and performance.

Performance Pads & Rotors: A simple upgrade to performance brake pads (e.g., EBC, Hawk) and slotted or drilled rotors can significantly improve braking feel and fade resistance.
Stainless Steel Brake Lines: These lines don’t expand under pressure like rubber lines, leading to a firmer, more consistent brake pedal feel.
Big Brake Kits (BBK): For serious track use, a BBK offers larger calipers and rotors, dramatically increasing stopping power and heat dissipation. This is a more expensive upgrade but provides superior performance.

Buying a 1999 Honda Civic Si: A Comprehensive Guide

Finding a clean, unmolested 1999 Honda Civic Si can be a challenge, but it’s definitely worth the effort. This section offers a 1999 Honda Civic Si guide for prospective buyers.

Pre-Purchase Inspection Checklist

Always perform a thorough inspection, and if possible, get a pre-purchase inspection by a trusted mechanic familiar with Hondas.

Engine:
- Check for leaks (oil, coolant, power steering).
- Listen for unusual noises (knocks, ticks, VTEC not engaging).
- Ensure VTEC engages smoothly at high RPM during a test drive.
- Check for smoke from the exhaust (blue for oil, white for coolant, black for rich fuel).
- Verify timing belt service history (should be done every 60k-90k miles).
Transmission & Clutch:
- Ensure smooth shifts through all gears without grinding.
- Check clutch engagement point and feel for slipping.
Suspension & Steering:
- Listen for clunks or squeaks over bumps.
- Check for excessive play in the steering wheel.
- Look for worn bushings, leaky shocks, or bent suspension components.
Body & Chassis:
- Inspect for rust, especially in the common areas mentioned above.
- Look for signs of accident damage (uneven panel gaps, overspray, frame damage).
- Check paint condition.
Interior:
- Ensure all electronics work (windows, A/C, radio).
- Check for excessive wear on seats, steering wheel, and shifter.
- Verify odometer reading matches service history if available.

What to Pay Attention To

These specific points often reveal a lot about a car’s history.

Modifications: While some mods can be good, heavy or poorly executed modifications can hide problems or indicate hard use. Prioritize cars with minimal or reversible modifications, or those with high-quality, professionally installed parts.
Service History: A well-documented service history is invaluable. It shows consistent care and allows you to anticipate future maintenance needs.
Rust: This is the biggest killer of older Civics. Be extremely vigilant. Surface rust is manageable, but structural rust is a deal-breaker.
Price vs. Condition: Don’t expect a perfect Si for cheap. Be prepared to pay a premium for a well-maintained, lower-mileage example. It will save you money in the long run.

Sustainable & Eco-Friendly Driving with Your Classic Si

Owning a classic car doesn’t mean you can’t be mindful of your environmental impact. There are many ways to make your 1999 Honda Civic Si more sustainable and eco-friendly.

Fuel Efficiency Tips

While the B16 is a high-performance engine, it can still be relatively fuel-efficient if driven conservatively.

Smooth Driving: Avoid aggressive acceleration and braking. Maintain a steady speed.
Proper Tire Pressure: Keep your tires inflated to the recommended pressure. Under-inflated tires increase rolling resistance and reduce fuel economy.
Regular Maintenance: A well-tuned engine, clean air filter, and correctly functioning sensors (like the oxygen sensor) ensure optimal fuel combustion.
Lighten the Load: Remove unnecessary items from your trunk. Every extra pound reduces fuel efficiency.

Proper Disposal of Fluids & Parts

When you perform DIY maintenance, it’s crucial to dispose of waste responsibly.

Used Oil & Fluids: Never pour used motor oil, coolant, or brake fluid down the drain or into the ground. Most auto parts stores and local recycling centers accept these fluids for free.
Old Parts: Metal parts like rotors, calipers, and old engine components can often be recycled as scrap metal. Check with your local recycling facility.
Tires: Old tires can be recycled at most tire shops for a small fee, or at designated recycling centers.

Safety First: Driving & Owning Your Classic Si

While the 1999 Honda Civic Si offers an exhilarating driving experience, it lacks many of the advanced safety features found in modern vehicles. Prioritizing safety is paramount.

Tire Care & Selection

Your tires are the only contact points with the road; they are critical for safety.

Tire Pressure: Check tire pressure weekly. Correct pressure improves handling, braking, and fuel economy.
Tread Depth: Regularly inspect tread depth. Worn tires significantly reduce grip, especially in wet conditions. Use the “penny test” (if Lincoln’s head is fully visible, replace them).
Tire Age: Even if they have good tread, tires degrade over time. Replace tires that are older than 6-7 years, regardless of mileage. Check the DOT code on the sidewall for the manufacturing date.
Appropriate Tires: Choose tires suitable for your driving conditions. High-performance summer tires offer excellent grip in dry conditions but are unsafe in snow or ice. All-season tires provide a better balance for varied climates.

Regular Safety Inspections

Beyond routine maintenance, periodic safety checks can catch potential issues before they become dangerous.

Lights: Check all exterior lights (headlights, tail lights, brake lights, turn signals) are working correctly.
Wipers: Ensure wiper blades are in good condition and clear the windshield effectively. Replace them every 6-12 months.
Horn: Test your horn periodically.
Seatbelts: Inspect seatbelts for fraying or damage. Ensure they latch securely and retract properly.
Emergency Kit: Keep an emergency kit in your car, including a first-aid kit, jumper cables, a flashlight, and basic tools.

Frequently Asked Questions About the 1999 Honda Civic Si

What is the typical lifespan of a 1999 Honda Civic Si engine?

With proper and consistent maintenance, including regular oil changes and timing belt replacements, the B16A2 engine can easily last 200,000 to 300,000 miles or more. Many enthusiasts report even higher mileage. The key is preventative care and addressing issues promptly.

Are parts for the 1999 Honda Civic Si hard to find?

No, quite the opposite! Due to its popularity and shared platform with other Civics and Integras, parts are readily available. OEM parts can still be sourced, and the aftermarket is flooded with performance and replacement options. This makes the 1999 Honda Civic Si a relatively easy car to maintain and modify.

Is the 1999 Honda Civic Si a good daily driver?

Absolutely. While it’s a performance-oriented car, its Honda roots mean it’s comfortable enough for daily commuting, reliable, and relatively fuel-efficient when not pushed hard. The manual transmission is engaging but easy to live with in traffic. Just be mindful of its age and plan for routine maintenance.

What’s the difference between the 1999 and 2000 Honda Civic Si?

For the North American market, there are virtually no mechanical differences between the 1999 and 2000 Civic Si models. The primary distinctions are minor cosmetic changes, such as different exterior color options and some slight interior trim variations. Both years are essentially identical in terms of performance and features.

How much horsepower does a stock 1999 Honda Civic Si have?

The 1999 Honda Civic Si (EM1) comes with the B16A2 engine, which produces 160 horsepower at 7,600 RPM and 111 lb-ft of torque at 7,000 RPM. This is a naturally aspirated engine, meaning it achieves its power without turbocharging or supercharging, relying on its high-revving nature and VTEC system.

Conclusion

The 1999 Honda Civic Si remains a beloved icon for good reason. It’s a testament to Honda’s engineering prowess, offering a blend of performance, reliability, and sheer driving fun that few cars can match. By following this 1999 Honda Civic Si guide, embracing best practices for care, and understanding its common quirks, you’re not just maintaining a car; you’re preserving a piece of automotive history.

Whether you’re meticulously restoring one, building a track-day warrior, or simply enjoying it as a weekend cruiser, the knowledge shared here will empower you to make informed decisions. Remember, regular maintenance, keen observation, and a proactive approach are your best tools for keeping your Si on the road and smiling. Embrace the VTEC, drive responsibly, and keep that legend alive!

Author
Recent Posts

Thomas Corle

Founder & Automobile expert at FatBoysOffroad

Automobile expert and off-road enthusiast, sharing in-depth knowledge of vehicles, gear, and adventures. Helping readers make smart decisions and enjoy the thrill of off-roading safely and confidently.