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Updated on May 5, 2025
Modifying your vehicle is one of the simple pleasures in life; there’s something so rewarding about unboxing and installing fresh parts on your ride, whether stylish exterior upgrades, protective interior accessories, or performance-boosting products under the hood!
While the Toyota 4Runner isn’t as popular of a chassis to build as its sibling, the Tacoma, the mid-size SUV boasts an impressive aftermarket, offering everything from lift kits, wheels, and tires to seat covers and floor mats! If you’re looking to modify your 4Runner but aren’t sure where to begin, stay tuned! In this guide, we’re compiling a list of our top 4Runner modifications in three common categories: interior, exterior, and performance.
Whether you’re planning on a mild or wild build, read on for our preferred products to boost your 4Runner's overall performance, aesthetics, and convenience.
To kick things off, let’s dive straight into your 4Runner’s cockpit. Seeing as your 4Runner’s interior is where you'll spend most of your time, it’s crucial to bolster comfort and protection. Check out some of our favorite interior accessories to do so!
Whether you cruise your 4Runner on the street or through challenging trails, the factory carpeting is routinely subjected to wear and tear. Dirty shoes, muddy boots, and spilled beverages can make quick work of your 4runners' once-flawless carpeting, leaving unsightly stains and wear. Instead of incurring unnecessary damage, protect your 4Runner's carpet with a set of premium floor mats!
WeatherTech DigitalFit Floor Liners are the ultimate in carpet protection, featuring a rugged High-Density Tri-Extruded construction. This material doesn’t only look great, but it also resists chemicals, extreme temperatures, punctures, and abrasions!
Each floor liner is precision-molded to your 4Runner’s floor plans using 3D digital scanning, ensuring flawless fitment and maximum coverage. Beneath the mats, a textured finish grips your 4Runner’s carpeting to prevent slipping and sliding. Molded edges prevent spillover onto your carpet while deep grooves and channels trap excess liquids.
WeatherTech DigitalFit Floor Liners are available in black, gray, tan, or cocoa, ensuring a flawless match with your 4Runner’s interior.
Features:
Guards factory carpeting against spills, dirt, snow, and unnecessary wear
Vehicle-specific fitment
Patented High-Density Tri-Extruded (HDTE) construction
3D digitally scanned for flawless fitment
Raised edges prevent spills
Deep grooves and channels trap liquids and spills
A grippy underside prevents excess slippage
Chemical, extreme temperature, and abrasion-resistant
Available in black, gray, tan, or cocoa
USA-made
Limited lifetime warranty
Unfortunately, your 4Runner’s carpeting isn't the only damage-prone area of the interior. The upholstery is also susceptible to abrasions, punctures, staining, and wear; luckily, there’s a solution! At RealTruck, we offer a wide selection of premium seat covers, providing exceptional protection, comfort, and aesthetics!
Guard your 4Runner’s seats against unnecessary damage with Prym1 Camo Seat Covers from Covercraft! These rugged and stylish seat covers are constructed from 600-denier polyester fabric, preventing punctures and rips for years of reliable service! The material is also moisture, UV, and mildew-resistant, ideal for any climate.
Not only are these seat covers protective, but also stylish! The multi-purpose or blackout camouflage patterns significantly improve your 4Runner’s aesthetics, providing the appearance of a custom interior!
These seat covers offer a precise, vehicle-specific design, ensuring a flawless fit and finish; they’re compatible with in-seat airbags, heated seats, and safety restraint latches, ensuring no functionality is lost. Whenever these covers require cleaning, just remove them, toss them into any home washing machine, and run them through a light cycle! They’re also dryer-friendly for quick cleaning.
Features:
Vehicle-specific fitment
Robust 600-denier polyester fabric construction
Overlapped, double-stitched seams
Multi-purpose camo and blackout camo prints are available
UV, mildew, and water resistant
Machine washable and dryer friendly
Includes headrest, armrest, console covers, and airbag cutouts, if applicable to vehicle
Compatible with heated seats and safety restraint latch points
Integrated map pockets
Sold per-row
3-year warranty
Moving on from protection, let’s talk storage! A messy interior adds unnecessary stress to your life; instead, keep your interior organized with our premium storage solutions!
The Northwest Mojave Seatback Organizer is the perfect addition to any 4Runner, providing easily-accessible storage at an arm’s reach away! This multi-pocket organizer mounts to your 4Runner’s seat backs, preserving the cargo area for luggage, recovery gear, and other equipment.
This product includes a base rack system and various cases and packs you can organize as you see fit, allowing full customizability. All cases and packs are manufactured from rugged 500-denier nylon fabric with a water-resistant PVC backing, protecting your valuables against impacts, abrasions, and extreme weather conditions.
As a bonus, this product protects your 4Runner seat backs against abrasions, stains, and punctures, ideal for those that regularly haul dogs or messy kids in the rear seats.
Features:
50-denier nylon construction
Includes a base rack, two different-sized cases, three different-sized packs, and a flashlight holder
Waterproof PVC inner backing
Reinforced double box stitching for handles and straps
Machine wash gently with mild detergent and air dry
1-year warranty
Moving on from protection, let’s talk storage! A messy interior adds unnecessary stress to your life; instead, keep your interior organized with our premium storage solutions!
Whether you’re looking to bolster your 4Runner’s off-road performance or provide it with the rugged aesthetics it deserves, a lift kit is a surefire way to get the job done! These components increase ride height and tire clearance, significantly improving off-road performance. And with upgraded strut assemblies and stiff polyurethane bushings, you may even notice improvements on the street!
The Superlift 3” Lift Kit is a premium suspension lift for your 4Runner, providing three additional inches of ride height and improved off-road performance. This kit features such upgrades as beefy tubular upper control arms, CNC-machined billet aluminum strut/spring spacers, upgraded dampers, and all necessary hardware.
Superlift 3” Lift Kits feature a simple, bolt-on installation on most 4Runner generations, ensuring a hassle-free installation without cutting, drilling, or other modifications.
Features:
Complete front and rear lift kit
Vehicle-specific fitment
Includes all required installation hardware
Most kits are available with Superlift or Bilstein shocks
USA-made
Limited lifetime warranty
Of course, you’ll need upgraded wheels and tires to fill out your 4Runner's fender wells after installing the lift! We offer a wide assortment of aftermarket wheels and tires, providing stylish aesthetics and improved traction off-road. No matter the caliber of your build, we’ve got you covered!
The Method Matte Black 703 is a premium offering from one of the leading off-road wheel manufacturers–Method Race Wheels. This wheel features a rugged aluminum construction for the perfect blend of strength and low overall weight. These wheels feature Method’s patented Bead Grip technology, consisting of a grooved lip that grips the tire’s bead. This design allows you to run significantly lower tire pressures without the risk of blowing a bead on the trail!
The Method 703 features a sleek, concave, 12-spoke design that complements any 4Runner; the stealthy matte black painted finish provides a rugged, off-road-centric aesthetic. These wheels also feature an exposed lug center for quick tire changes and a replaceable snap-in center cap.
Features:
Solid aluminum construction
Matte-black painted finish
Concave, 12-spoke face
Reinforced inner lip
Patented “Bead Grip” technology
Exposed lug center
Replaceable and customizable snap-in center cap
1-year finish/lifetime structural warranty
Regarding tires, Toyo’s new Open Country R/T Trail is a tough product to beat! These hybrid tires offer exceptional performance on and off-road due to their innovative hybrid design. With the aggressive outer shoulder of a mud terrain but the mild inner lugs of an all-terrain, these tires provide exceptional grip in all conditions. They’re also quiet and comfortable on the road, making them the perfect tire for a 4Runner that balances time in the dirt and street.
Features:
Hybrid all-terrain/mud-terrain tire
Optimized tread pattern
Staggered shoulder blocks
Extra-thick sidewall
Rim protector
Wide circumferential grooves
Variable pitch pattern
45,000 mile warranty
Next up is lighting; because, let’s be honest, who can’t use a bit of extra light in dim conditions? We offer several lighting solutions for the Toyota 4Runner, including replacement headlights and taillights, LED light bars, and pods and cubes.
Consider the RIGID Industries 360-Series A-Pillar Light Kit for a subtle and stylish lighting solution! This product includes a pair of rugged anodized aluminum mounts that bolt directly to your 4Runner’s A-Pillars, providing the perfect base to mount the included RIGID LED pods!
Each kit includes a pair of 4 or 6-inch round LED pods, providing up to 3,060 lumens of output and 50,000 hours of service life! Whether cruising a dimly lit street or navigating a dark trail, the RIGID Industries 360-Series A-Pillar Light Kit has you covered.
Features:
Available in 4" and 6" diameters
Up to 3,060 lumens of light
Aluminum construction
Amber backlighting
Includes black covers and amber transparent covers
50,000 Hr+ LED Lifespan
Limited lifetime warranty
Finally, let’s tackle underhood performance. While your 4Runner’s V6 power plant has plenty of torque for the stock tires, adding beefy all-terrains, burly steel bumpers, and heavy accessories can significantly reduce performance. Luckily, we carry several products to put the pep back in your modified 4Runner!
One of the best ways to boost your 4Runner’s performance is by increasing airflow into the intake, improving combustion efficiency and, thus, power! Air intake systems accomplish just that, employing large-diameter piping and high-efficiency filters to take in as much air as possible.
The S&B Cold Air Intake System offers exceptional airflow, boosting performance and fuel efficiency with nothing more than a simple bolt-on modification! S&B cold air intakes feature heavy-duty silicone couplers for smooth airflow, large-diameter intake tubes, and your choice of a washable 8-layer oiled cotton or a dry-replaceable air filter.
S&B cold air intake system also includes an innovative clear inspection cover to monitor the filter’s condition, ensuring adequate airflow at all times! All air filters are tested to stringent ISO 5022 standards for maximum performance.
Features:
Increase horsepower and improve fuel economy
Heavy-duty silicone intake couplers and tube seals
Simple DIY installations
Available with 8-layer, washable, oiled-cotton, or dry replaceable filters
Oversized, fully-enclosed air box
Clear inspection lid to monitor the filter's condition
Filters are tested to ISO 5011 Filtration Standard
USA-made
Million-mile warranty
While airflow into an engine is vital, fresh air can only fill an engine as fast as discarded exhaust gasses can exit! For this reason, it’s important to have a high-flowing exhaust system to maximize efficiency. As a bonus, a performance exhaust system also provides your 4Runner with a deep, throaty exhaust note.
The MBRP Installer Series Exhaust System is a premium, direct-replacement exhaust for your Toyota 4Runner, offering an easy, direct bolt-on installation that’s DIY-er friendly.
This system is manufactured entirely from aluminized steel, keeping corrosion at bay. All piping is mandrel-bent for maximum exhaust flow, providing dyno-proven performance gains. The high-flow muffler also improves your 4Runner’s exhaust note, making it sound as tough as it looks! To finish off the system, MBRP includes a corrosion-resistant T304 exhaust tip that clamps directly to the tailpipe.
Features:
Heavy-duty aluminized steel construction
Mandrel-bent tubing
Dyno-proven performance gains
Moderate exhaust tone
Corrosion-resistant T304 stainless steel exhaust tips
Simple bolt-on installation
Limited 3-year warranty
If you still aren’t satisfied with your 4Runner’s performance after a new exhaust and cold air intake, consider installing a tuner or programmer! These computerized devices alter specific parameters in your 4Runner’s on-board computer, like air-fuel ratio and timing, to significantly bolster performance.
The Pedal Commander Throttle Response Controller is a worthwhile investment for any 4Runner, especially those still under manufacturer warranty! This innovative tuning solution doesn’t alter your 4Runner’s computer like traditional tuners; instead, it alters the signal from your 4Runner’s accelerator pedal, increasing responsiveness for significantly quicker acceleration and minimal delay!
This product installs easily and offers various presets and modes, allowing you to adjust your 4Runner’s throttle sensitivity on the fly. Additionally, this product won’t void your warranty like most tuners on the market!
Features:
Eliminates the gas pedal's response delay
Plug-and-play installation
4 modes: ECO, City, Sport, Sport +
36 sensitivity presets
Bluetooth compatible
Controlled by a smartphone app or on device
Faster acceleration
Gas savings in ECO mode
2-year warranty
Will NOT void vehicle warranty
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