The Triple Bypass is easily one of Borderlands 4’s best legendary repkits, but it takes a pretty frustrating farm. That could be said for every single legendary, but this one seems to have a especially low drop rate. I spent hours grinding this fight, so I can attest that its drop rate isn’t a pleasant one. That said, this repkit is probably worth farming once you hit level 50 to make some of the harder battles more manageable.
You must at least get to Terminus Range before acquiring Triple Bypass in Borderlands 4 since it’s hidden away in The Claim, an Abandoned Auger Mine. To get access, you’ll also need to at least complete Shadow of the Mountain, which unlocks all the Auger Mines. Here’s how to farm this amazing repkit in BL4.
How to farm the Triple Bypass legendary repkit in Borderlands 4
The Triple Bypass legendary repkit drops from The Backhive boss in Borderlands 4, which is only found in The Claim. After completing Shadow of the Mountain to unlock all the Auger Mines, you can come to this area.
Here are the steps to farm the boss:

- Fast travel to Zandra’s Hideout in The Fadefields
- Open the map and set a ping for The Claim.
- Walk to the dead end near Zandra, and push through the wall to enter the mini-dungeon.
- Navigate to the end and defeat The Backhive boss.
- Use the grapple point beyond the boss to come back to the top.
- Use Moxxi’s Encore if necessary
When you get to where The Claim is inside Zandra’s Hideout, it’s just a wall. That said, walking through it begins The Claim. It’s a mini-dungeon with poisonous water and quite a few battles in it. It’s not difficult, and you can wade through it in no more than 5-10 minutes. At the end, though, is The Backhive.
If you’re serious about farming this boss, bring at least one powerful weapon that deals Ignite Damage. It will shred through his health in no time. Of course, you can also use Vex’s Infinite Damage build, provided it hasn’t been nerfed yet.

The boss has a few attacks. He can stomp the ground, which sends a shockwave, and charge at you. These aren’t too hard to deal with. Periodically, as its name implies, its back will spawn a bunch of Kratch that will fight you.
This is why bringing Vex is pretty great because her Specters will shoot the Kratches. If you’re taking a lot of damage, keep one or two of them up, so you can Second Wind off of a quick kill. Just keep as far away as possible, and light him up with Ignite Damage, and he’ll go down in no time.
There’s a chest you can loot beyond the boss, and a return point that will bring you back to Moxxi’s Encore, so you can fight the entity again if necessary. There’s also an ammo refill and a health vending machine to sell unneeded gear to. Hopefully, he’ll drop the Triple Bypass legendary repkit for you in Borderlands 4.
Triple Bypass legendary unique effect and stats

The Triple Bypass legendary repkit is incredibly strong, with a decently long timer. However, besides having a long timer (21s), it also has more than one use. At level 50, it’s going to heal 6,767 Healing, with 3,383 over 10s. That’s already amazing, but it also has the Heart Pump feature.
Heart Pump
Heart Pump is Triple Bypass’s unique effect in Borderlands 4, and instead of only having one charge, as the name implies, it has three. In addition, it has a 30% chance to replenish a Charge on an enemy kill, which potentially allows constant availability. I cannot think of a more coveted repkit, no matter the character I’m playing.
Check out our other Borderlands 4 guides and features
- All Weapon Manufacturers in Borderlands 4
- Who is the villain of Borderlands 4?
- What are Enhancements in Borderlands 4?
- Does Borderlands 4 have co-op and crossplay?