Hey guys! Let's dive into the world of modified 1999 Toyota 4Runners. This rugged SUV has a huge fanbase, especially among those who love off-roading and customization. A modified 4Runner isn't just a vehicle; it's a statement. Whether you're looking to enhance its off-road capabilities, improve its aesthetic appeal, or boost its overall performance, the possibilities are endless. In this article, we’ll explore some popular modifications, what to consider before you start wrenching, and how to make your 1999 4Runner truly your own.

Popular Modifications for the 1999 Toyota 4Runner

When it comes to modifying a 1999 Toyota 4Runner, the sky's the limit! But to give you some solid ideas, let's explore some of the most popular and effective modifications out there. These upgrades can drastically improve your 4Runner's performance, appearance, and overall enjoyment.

Suspension Upgrades

Suspension upgrades are a game-changer for any serious off-roader. The stock suspension on a 1999 4Runner is decent for daily driving, but it leaves much to be desired when tackling tough trails. Upgrading your suspension can provide increased ground clearance, better articulation, and a smoother ride both on and off the road.

• Lift Kits: Lift kits are probably the most common suspension mod. They raise the entire vehicle, providing more room for larger tires and improving your approach, departure, and breakover angles. You can choose from various lift heights, typically ranging from 2 to 3 inches for a good balance between on-road comfort and off-road capability. Popular brands include Old Man Emu (OME), Toytec, and Bilstein. Each brand offers different levels of lift and ride quality, so do your research to find the one that best suits your needs.
• Coilovers: For those seeking even better performance, coilovers are the way to go. Coilovers offer adjustable ride height and damping, allowing you to fine-tune your suspension to your specific needs. This is especially useful if you frequently carry heavy loads or encounter varied terrain. High-end brands like King, Fox, and Icon offer top-notch coilover systems that can transform your 4Runner's handling.
• New Springs and Shocks: If you're on a budget, simply replacing your old, worn-out springs and shocks with new, high-quality components can make a significant difference. Upgraded springs can handle heavier loads and provide a slightly higher ride height, while better shocks can improve damping and reduce body roll. Bilstein 5100 series shocks are a popular choice for their affordability and performance.

Tire and Wheel Upgrades

Upgrading your tires and wheels is another essential modification, especially if you plan on hitting the trails. The right tires can dramatically improve your 4Runner's traction, handling, and appearance. Likewise, new wheels can add a touch of style and provide additional strength and durability.

• Off-Road Tires: All-terrain (AT) and mud-terrain (MT) tires are the most popular choices for off-road enthusiasts. AT tires offer a good balance between on-road comfort and off-road traction, making them ideal for daily driving and weekend adventures. MT tires, on the other hand, are designed for extreme off-road conditions, with aggressive tread patterns that provide maximum grip in mud, sand, and rocks. Popular brands include BFGoodrich, Goodyear, and Nitto.
• Wheel Size and Offset: When choosing new wheels, consider the size and offset. Larger diameter wheels can improve the appearance of your 4Runner, but they can also affect handling and fuel economy. Offset refers to the distance between the wheel's mounting surface and its centerline. A negative offset will push the wheels outward, giving your 4Runner a wider stance and improved stability. However, be careful not to choose an offset that is too extreme, as it can cause rubbing issues and put excessive stress on your wheel bearings.
• Beadlock Wheels: For serious off-roaders, beadlock wheels are a must-have. Beadlocks clamp the tire to the wheel, preventing it from debeading when running low tire pressures. This is especially important when navigating rocky terrain, where low tire pressures are needed for maximum traction.

Armor and Protection

Protecting your 4Runner from damage is crucial, especially if you plan on tackling challenging trails. Armor and protection modifications can shield your vehicle from rocks, trees, and other hazards, preventing costly repairs and keeping you safe on the trail.

• Skid Plates: Skid plates protect the vital components under your 4Runner, such as the engine, transmission, and transfer case. They are typically made from steel or aluminum and are designed to absorb impacts and slide over obstacles. A full set of skid plates is a worthwhile investment for any serious off-roader.
• Rock Sliders: Rock sliders are metal bars that mount to the sides of your 4Runner, protecting the rocker panels from damage. They also provide a convenient step for getting in and out of the vehicle. Rock sliders are essential for navigating rocky terrain, where the rocker panels are vulnerable to damage.
• Bumpers: Upgrading your front and rear bumpers can improve your 4Runner's approach and departure angles, as well as provide additional protection. Aftermarket bumpers are typically made from steel and are much stronger than the stock plastic bumpers. They can also accommodate accessories such as winches and lights.

Performance Upgrades

While the 1999 4Runner is no slouch, there's always room for improvement in the performance department. Performance upgrades can boost your engine's horsepower and torque, improve throttle response, and enhance overall drivability.

• Cold Air Intake: A cold air intake replaces the stock airbox with a less restrictive intake system, allowing more air to flow into the engine. This can result in a slight increase in horsepower and torque, as well as improved throttle response. Popular brands include K&N, AEM, and Volant.
• Exhaust System: Upgrading your exhaust system can also improve engine performance by reducing backpressure. A cat-back exhaust system replaces the exhaust pipes from the catalytic converter back, while a full exhaust system replaces everything from the exhaust manifold back. Popular brands include Flowmaster, Magnaflow, and Borla.
• ECU Tuning: Tuning your engine's electronic control unit (ECU) can optimize its performance for your specific modifications. A custom tune can adjust parameters such as fuel delivery, ignition timing, and boost pressure (if you have a supercharger), resulting in a noticeable increase in horsepower and torque.

Aesthetic Modifications

Of course, modifying your 4Runner isn't just about performance; it's also about making it look good! Aesthetic modifications can give your 4Runner a unique and personalized appearance.

• Lighting: Upgrading your headlights, taillights, and fog lights can improve visibility and give your 4Runner a more modern look. LED headlights are a popular choice for their brightness and energy efficiency. You can also add auxiliary lights, such as light bars and spotlights, for increased visibility on the trail.
• Grille: Replacing the stock grille with an aftermarket grille can dramatically change the look of your 4Runner. There are many different styles to choose from, ranging from simple mesh grilles to aggressive-looking grilles with integrated LED lights.
• Paint and Wraps: A fresh coat of paint or a custom vinyl wrap can completely transform the appearance of your 4Runner. You can choose from a wide range of colors and finishes, and you can even add custom graphics or designs.

What to Consider Before Modifying Your 4Runner

Before you start tearing apart your 1999 Toyota 4Runner, there are a few important things to consider. Planning ahead can save you time, money, and frustration in the long run.

Budget

Setting a budget is crucial before starting any modification project. It's easy to get carried away and spend more than you intended, so it's important to have a clear idea of how much you're willing to spend. Research the cost of each modification you're interested in, and factor in the cost of labor if you're not doing the work yourself. Also, don't forget to set aside some money for unexpected expenses.

Intended Use

Consider how you plan to use your 4Runner. Will it be primarily a daily driver, or will it be used mostly for off-roading? The types of modifications you choose will depend on your intended use. For example, if you plan on doing a lot of rock crawling, you'll want to focus on suspension upgrades, armor, and tires. If you're primarily using your 4Runner for daily driving, you might want to focus on aesthetic modifications and performance upgrades that improve on-road comfort and fuel economy.

Research

Do your research before buying any parts. Read reviews, compare prices, and ask for recommendations from other 4Runner owners. There are many different brands and products to choose from, and it's important to find the ones that are right for your needs and budget. Online forums and social media groups are great resources for finding information and getting advice from experienced modifiers.

Installation

Consider whether you're going to install the modifications yourself or hire a professional. Some modifications are relatively easy to install, while others require specialized tools and knowledge. If you're not comfortable working on your vehicle, it's best to hire a professional to do the work. This will ensure that the modifications are installed correctly and safely.

Legal Considerations

Be aware of any legal restrictions in your area. Some modifications, such as lift kits and window tinting, may be subject to legal restrictions. Make sure you're aware of the laws in your area before making any modifications to your 4Runner. You don't want to get a ticket or fail a vehicle inspection because of an illegal modification.

Making Your 1999 4Runner Your Own

Modifying a 1999 Toyota 4Runner is a fantastic way to personalize your vehicle and make it truly your own. Whether you're looking to improve its off-road capabilities, enhance its performance, or simply make it look cooler, the possibilities are endless. By considering your budget, intended use, and legal restrictions, you can create a 4Runner that is perfectly suited to your needs and preferences.

So, what are you waiting for? Start planning your modifications today and transform your 1999 Toyota 4Runner into the ultimate off-road machine or stylish daily driver! Have fun, be safe, and enjoy the journey!