Summary: This guide explores the best Borderlands 4 mods, including class, performance, and fireware enhancements, to help you optimize gameplay, builds, and overall experience.

Borderlands 4 is packed with action, loot, and fast-paced gunplay, but mods take the experience to an entirely new level.

From powerful class mods that shape your playstyle, to performance mods that smooth out gameplay, and fireware mods that push your builds to the max, there’s no shortage of ways to customize.

In this guide, we’ll break down the best Borderlands 4 mods in each category and show you how they transform your game.

Finally, we’ll explain how to get all these mods quickly and safely with XMOD, so you can focus on unleashing your ultimate Vault Hunter.

Table of contents

1. What are Borderland 4 Mods?
2. Borderlan4: Best Class Mods Explained
3. Best Borderland 4 Performance Mods Explained
4. Best Fireware Mods for Borderland 4
5. How Can You Get All These Mods for Borderlands 4
6. Conclusion

What are Borderland 4 Mods?

Borderlands 4 mods are custom enhancements that expand and refine your gameplay, giving you more control over how you build your Vault Hunter and experience the game. These mods generally fall into three key categories:

• Class Mods – Focused on character builds, class mods boost skills, stats, and abilities to create powerful synergies tailored to your playstyle.
• Performance Mods – Designed to improve game stability and visuals, performance mods can smooth out framerates, reduce lag, and enhance graphics for a better experience.
• Fireware Mods – High-impact gameplay mods that push damage, weapon efficiency, and combat effectiveness to new heights, letting you dominate tougher encounters.

Together, these three types of mods allow players to fine-tune both gameplay and performance, making Borderlands 4 more customizable and rewarding than ever.

Borderlan4: Best Class Mods Explained

Class Mods are unique, character-specific upgrades that grant stat boosts and special abilities when equipped. What sets them apart, however, is their ability to grant extra skill points.

This brings two major advantages. First, Class Mods let you go beyond the usual point limits for skills on the tree. More importantly, they allow you to unlock certain abilities without investing along the full path. As a result, you gain far greater build flexibility, freeing you to distribute points creatively while benefiting from skills outside your chosen route.

Amon Class Mods

Name	Description	Location
Blacksmith	Kill Skill. Restores some duration to Forgedrones. +gun dmg per active drone.	Umbral Foundry
Elementalist	All Affinity Skills gain a stack when one does. +Movement speed for each stack.	Fadefields – Arch of Inceptus
Forge Master	All Forgeskills can now be used once while on Cooldown.	Carcadia – Arch of Radix
Furnace	Fellfrost, Hoarcleave, Fulminating Fist, & Stormcutter is now Incendiary.	Fortress Indomita
Shatterwight	Forgewaves deals Melee. Melee while Scourge for +Cryo Efficiency & Radius.	Terminus Range – Arch of Origo
Viking	Crucible gains +2 charges, +duration, +dmg reduction while active.	Moon-Called Throne

Harlowe Class Mods

Name	Description	Location
Atomic Driver	Chroma Accelerator drains HP to 1 for amped version & gains 20% lifesteal.	Terminus Range – Arch of Origo
Bio-Robot	Entanglement creates alternating Cryo hazards & Radiation Hazards.	Fortress Indomita
Generator	TBD	Umbral Foundry
Reactor	Entangle use adds Reactor Stack. At x10, +20% dmg, fire rate, rld speed, status…	TBD
Scientist	Shock auto Entangles an Irradiates enemy & arcs Shock to nearby enemies.	Carcadia – Arch of Radix
Skeptic	Slam Stasised for R & O Darts. Shot status-effected restores 5% of Action Skill.	Moon-Called Throne

Rafa Class Mods

Name	Description	Location
Buster	TBD	Terminus Range – Arch of Origo
Dancer	+100% Overdrive Bonus. Overdrive ends on Action Skill end.	Fortress Indomita
Esgrimidor	Melee gains +10% crit chance. Crits with Melee restore +5% Action Skill Duration.	Moon-Called Throne
Filántropo	Spawns a free grenade when action skill is retriggered.	Fadefields – Arch of Inceptus
Grenazerker	Throwing a grenade or Tediore gun throws another.	Carcadia – Arch of Radix
Instigator	Firing Peace Cannon gains stack of Instigator, +2% Gun dmg per stack.	Umbral Foundry

Vex Class Mods

Name	Description	Location
Avatar	+Dmg for each active Attunement. Gain attuned elemental resistance.	Fadefields – Arch of Inceptus
Illusionist	Specters & Reapers have chance to be Badasses, guaranteed every 90s.	Moon-Called Throne
Spirits	Command skills grant +Kinetic Minion gun dmg. Command skills deal gun dmg.	Terminus Range – Arch of Origo
Teen Witch	When Max HP, Lifesteal partially applies to shields. While full, grants overshield.	Carcadia – Arch of Radix
Technomancer	Eldritch Blast deals additional Ordnance dmg. Kills or grenades reset cooldown.	Fortress Indomita
Undead Eye	Sniper Rifle kills triggers Blood Shot. 33% chance on crit to trigger as well.	Umbral Foundry

Best Borderland 4 Performance Mods Explained

If you want smoother Borderlands 4 gameplay without lag or FPS drops, these performance mods are among the best options to try:

• Ultimate Engine Tweaks – Enhances stability by removing stutters, lowering input latency, improving clarity, and boosting FPS without sacrificing visuals.
• Borderlands Optimizer – Minimizes lag and stutter through better asset management, including improved shader handling, streaming, CPU/GPU optimization, and reduced background processes.
• Optimax – Performance – Cuts loading times, latency, and stutter while raising FPS by cleaning up Unreal Engine effects.
• Smoothlands 4 – A lightweight .pak mod designed to improve FPS across all hardware setups, even on the Steam Deck.

These are currently the most popular performance mods for Borderlands 4, offering a clear improvement in smoothness and responsiveness. Just be sure to check each mod’s description before installing to ensure a smooth setup.

Best Fireware Mods for Borderland 4 

Firmware differs from standard mods, perks, and licenses in several ways. Here’s a brief overview:

• Gear can come with mods or perks—for instance, granting lifesteal on use, spawning MIRV grenades, or activating an overshield when you take damage. Additionally, there are license or manufacturer perks, such as Maliwan grenades that either stick to enemies or home in on a target.
• Firmware, however, is much rarer than other types of rolls and can only appear on non-primary weapon gear. This includes items like repair kits and healing injectors, ordnance and throwables, shields and armor, class mods, and other enhancements.
• Items that come with Firmware display a small symbol next to their icon or inventory box.
• Each Firmware mod provides a unique effect, and equipping two or three pieces with the same type of Firmware activates additional set bonuses.

What are the types of Firmware set bonuses?

Below is a collection of Firmware set bonuses we discovered during our playthrough. Use this list to help you choose the most effective Borderlands 4 Firmware mods for your build.

High Caliber

• 1-piece: +25% projectile speed

• 2-piece: +10% gun damage

• 3-piece: Bullets pierce enemies

Lifeblood

• 1-piece: +10% repkit healing

• 2-piece: +5% lifesteal

• 3-piece: Regain 10% max health on kill

Reel Big Fist

• 1-piece: +15% melee damage

• 2-piece: +25% melee damage

• 3-piece: Melee kills trigger a nova dealing +200% melee damage

Rubberband Man

• 1-piece: -5% damage taken

• 2-piece: +5% lifesteal

• 3-piece: Doubles all Firmware bonuses

Daed-dy-O’

• 1-piece: +25% gun mode switch speed

• 2-piece: +15% magazine size

• 3-piece: +20% damage and +5% fire rate for 5s after switching modes

Heating Up

• 1-piece: +20% reload speed

• 2-piece: +50% overheated shots before breaking (CoV parts)

• 3-piece: +25% gun damage while overheating with CoV parts

Baker

• 1-piece: +10% shield capacity

• 2-piece: -15% repkit cooldown

• 3-piece: +25% max health

Oscar Mike

• 1-piece: +10% reload speed

• 2-piece: +20% gun damage based on magazine emptiness

• 3-piece: +30% fire rate for 4s after reloading

Gadget Ahoy

• 1-piece: -15% ordnance cooldown

• 2-piece: +20% ordnance damage

• 3-piece: +20% damage for 15s after an ordnance kill

Bullets to Spare

• 1-piece: +5% fire rate

• 2-piece: +20% magazine size

• 3-piece: +50% fire rate scaling with magazine size

Deadeye

• 1-piece: +30% accuracy

• 2-piece: +25% critical damage

• 3-piece: +15% crit damage per stack (max 5) for 10s after a crit hit

Risky Boots

• 1-piece: -30% damage taken under 35% HP

• 2-piece: +35% movement speed under 35% HP

• 3-piece: +100% damage and +5% lifesteal under 35% HP

Atlas Infinum

• 1-piece: +5% fire rate with Atlas target lock

• 2-piece: +10% damage with Atlas parts

• 3-piece: Infinite target locks until you swap guns

Action Fist

• 1-piece: +15% melee damage

• 2-piece: +10% action skill damage

• 3-piece: +25% action skill damage for 8s after a melee kill

How Can You Get All These Mods for Borderlands 4

XMOD provides an easy and efficient way to access all mods for Borderlands 4, including gear perks, manufacturer perks, and rare Firmware mods. Instead of grinding endlessly in-game, you can use XMOD to quickly unlock, equip, or test any mod you want.

Here’s how to get started:

1. Install XMOD Download and install the latest version of XMOD compatible with Borderlands 4. Ensure your game is closed during installation to avoid conflicts.
2. Launch Borderlands 4 Through XMOD Open the XMOD launcher, select Borderlands 4, and start the game through the XMOD interface. This ensures the mod tools integrate correctly.
3. Access the Mod Menu Once in-game, open the XMOD overlay or menu. Here, you’ll find categories for gear mods, license/manufacturer perks, and Firmware mods.
4. Browse and Equip Mods Browse through all available mods. You can preview each mod’s effects, check compatibility, and instantly equip them to your character or gear.
5. Activate Set Bonuses For Firmware mods, XMOD allows you to easily combine multiple pieces with the same type to activate set bonuses without the usual in-game farming.
6. Save and Sync After equipping your desired mods, make sure to save your loadout. XMOD often provides an option to sync mods with your current game progress so you can continue playing normally.

By using XMOD, you can experiment with different combinations, maximize your character’s potential, and enjoy Borderlands 4 with all its mods fully unlocked.

Conclusion

Borderlands 4 offers a rich variety of mods that can dramatically change how you play. From class mods that enhance your character’s strengths, to performance mods that improve combat efficiency, and rare Firmware mods that provide unique effects and set bonuses, there’s a mod for every playstyle.

With tools like XMOD, acquiring and experimenting with these mods becomes easier than ever, allowing you to customize your loadouts, unlock powerful combinations, and maximize your gameplay experience. Whether you’re focused on raw damage, survivability, or utility, understanding and using these mods effectively is key to mastering Borderlands 4.