Outlaw Diesel Performance LLC logo featuring a red gear, wrench icon, and bold DP letters.
DIESEL SERVICE

Bring us your diesel

Full-service diesel shop in Pearl River, LA. tunes, maintenance, and performance builds for any diesel rig.

Disassembled V-engine block with exposed gears and cylinder heads mounted on a metal stand.
ENGINE BUILDS

We build it right — torqued, tested, and proven on the road.

Most shops guess. We build. From full engine rebuilds to custom builds spec’d around your truck, your driving, and the work it actually does—every part fitted right, every bolt torqued, nothing left to chance.

CUSTOM WORK

Tuned, deleted, and studded the right way the first time

Performance work isn't bolt-on parts. It's getting the tune, delete, and studs done so the truck runs hard and stays reliable on Pearl River roads.

Metallic grey intake pipes and black couplers arranged on a blue Matco Tools mat.

Custom diesel tuning

We tune for power, fuel economy, or towing, matched to your setup and how you actually drive.

Delete work done clean

Emissions deletes handled carefully so the truck runs clean and you're not chasing code lights later.

HEAVY-DUTY WORK

Engine rebuilds and transmission installs in Pearl River

When the bottom end goes or the trans drops out, we tear it down and build it back right.

Full engine rebuilds

We pull it, inspect everything, and machine what needs it. You get a fresh, dependable motor.

Transmission installs

Towing, hauling, or daily driving, we swap in a transmission that handles the abuse.

Upgraded internals

Going with stronger pistons, rods, and studs? We build the bottom end to survive the power.

Tear-down diagnosis

Hear a knock or feel a slip? We tear it down, find the real problem, and quote the fix.

Transmission fluid service

Regular flushes with the right fluid keep your trans shifting clean and running cool.

DIESEL FAQ

Diesel questions, answered straight

Straight answers about diesel work and scheduling in Pearl River.

REAL RESULTS

What do truck owners say about our work?

From tunes to full rebuilds, these are the results our customers in Pearl River and beyond have seen firsthand.

Brought my truck in for a delete and tune. Night and day difference on the highway. Pulls stronger and runs cleaner. No regrets.

Jake T. headshot

Jake T.

Local truck owner, Pearl River

Had a blown head gasket on my work truck. Outlaw got it torn down and rebuilt right. It's been running solid ever since.

Mike R. headshot

Mike R.

Commercial vehicle operator

Transmission was slipping bad. They swapped in a rebuilt unit and it shifts like it's new. Fair price and done when promised.

Danny S. headshot

Danny S.

Repeat customer, Louisiana

Asked a lot of questions about studding my 6.0. Got straight answers, not a sales pitch. The work speaks for itself. Runs great.

Chris M. headshot

Chris M.

Ford 6.0 owner

4 wheels, 1 call

Tell us what your truck's doing and we'll give you a straight answer. Book your diesel service in Pearl River today.