Upgrading to IS300 wide front fenders is one of the best ways to transform your Lexus into a more aggressive and performance-ready machine. Whether you are building a show car, a track setup, or simply want to stand out from the crowd with a wider stance, installing wide front fenders opens the door for wider wheels, improved aerodynamics, and a bolder body profile. This guide walks you through everything you need to know — from preparation to final fitment — so you can confidently complete the installation.

Why Install IS300 Wide Front Fenders?

Enthusiasts choose wide fenders for both style and function. Here are the main benefits:

• Accommodates wider wheels and tires without rubbing
• Improves stance and track width, giving your IS300 a muscular look
• Provides better airflow and aerodynamics depending on the design
• Enhances fitment for coilovers, angle kits, or drift setups
• Perfect for body kit integration or widebody conversions

There are multiple styles available on the market including OEM-style wide, vented track fenders, and aggressive bolt-on overfenders. Always choose a design that complements your overall build direction.

Tools and Materials You’ll Need

Before starting the install, gather these essential tools:

• Socket wrench set
• Trim removal tools
• Screwdrivers (Phillips & flathead)
• Ratchet and extensions
• Painter’s tape
• Jack and jack stands
• Panel clips & bolts (if replacements needed)
• Sanding block (for fiberglass/FRP trimming if required)
• Rubber gasket or edge trim (optional for cleaner finish)

If your IS300 wide front fenders are fiberglass or FRP, minor sanding or trimming during fitment is normal. ABS or metal versions typically require less adjustment but can be heavier.

Step-by-Step Installation Process

1. Preparation

Park the car on a flat surface, set the parking brake, and disconnect the negative battery terminal. It’s also a good idea to wash the fender area beforehand so no debris is trapped beneath the new panels.

2. Remove the Front Wheels

Jack up the front end and secure your car on jack stands. Remove both front wheels to provide easier access to bolts and wheel well liners.

3. Remove the OEM Fenders

You’ll need to detach:

• Headlight mounting bolts
• Inner fender liners
• Fender-to-bumper bolts
• Hood-side bolts
• Door-side mounting screws hiding behind the door jamb

Carefully remove the OEM fender and set it aside.

4. Test Fit the Wide Fenders

Before securing them permanently:

• Align the new fender with factory mounting points
• Check the door gap, hood gap, and bumper alignment
• Mark any trimming points (typical for fiberglass wide fenders)

This step ensures proper alignment before final tightening.

5. Mount the New Wide Fenders

Once satisfied with the test fit:

• Start tightening bolts slowly from the top down
• Keep the gaps even between body panels
• Use washers or foam padding in areas prone to vibration or flex

6. Reconnect Fender Liners or Modify as Needed

Some IS300 wide front fenders are designed to work with OEM liners, while others require trimming or aftermarket liners. Make sure everything is secured to prevent road debris or noise.

7. Reinstall Headlights & Front Bumper

Line up the bumper mounts and headlight brackets. If you’re using a widebody bumper, everything will flush nicely. For OEM bumpers, slight modifications may be required.

Painting and Finishing Tips

If your wide fenders ship unpainted, install them first for test fitting, then remove and send them for painting. This avoids misalignment after paintwork. For track-style builds, some owners paint them individually before installation or apply wrap instead.

Post-Installation Checks

Once everything is in place:

• Turn the wheels fully left and right to check clearance
• Check for rubbing or contact at full lock
• Re-torque bolts after a couple of drives
• Make sure panel gaps remain consistent

Final Thoughts

Installing IS300 wide front fenders adds a dramatic visual upgrade while also enhancing wheel clearance and aggressive stance potential. With the right tools, patience, and careful alignment, this mod can be done in a home garage. Whether paired with a full widebody kit or installed as a standalone upgrade, wide front fenders are a must-have for enthusiasts chasing both aesthetics and performance. If you’re building a drift-ready Lexus or aiming for a show-quality stance, this upgrade delivers instant style with functional benefits.

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