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

Pearl River's Trusted Diesel & Gas Repair, Plus Engine Rebuild Specialists

Outlaw Diesel Performance is your trusted diesel mechanic in Pearl River, LA. We specialize in diesel tunes, studs, engine rebuilds, transmission work, and much more. We accept light duty, medium duty, and heavy duty diesels. Outlaw Diesel Performance also specializes in gas vehicles. While we are known for our Diesel expertise, we provide quality automotive repair and maintenance for gas powered cars, trucks, and SUVs, too. From routine maintenance and diagnostics to more complex repairs, our goal is to keep your vehicle running and dependable. No matter what you drive, you can count on our team for honest service, quality workmanship, and a job done right. At Outaw Diesel and Performance, we worl on more than just diesels - we keep all your rides on the road!

Large truck engine with polished silver exhaust pipes in a workshop with a red toolbox.
All makes & models

Diesel & Gas Service

We dial in your truck's power and reliability with tunes and studs that hold up on the road and the job site.

Black engine block with silver cylinder heads on a red engine stand in a garage.
Heavy work

Engine Rebuilds Done Right

Full engine rebuilds that get your truck back to trusted, reliable power. No shortcuts, no half-measures.

FoMoCo turbocharger with black inlet and outlet caps installed in a vehicle's engine bay.
Turbochargers

Turbochargers

When your diesel engine needs a new turbocharger, we can help get you back on the road.

Vehicle engine bay featuring vibrant lime green aftermarket intake pipes and a performance air filter.
Cold Air Intakes

Cold Air Intakes

Looking to improve the airflow and performance of your diesel truck? We can help!

Exposed car engine showing timing gears and belt, illuminated by a bright work light from below.
Transmission

Transmission, Installs, Flushes, and More

From full transmission installs to fluid changes, we keep your drivetrain shifting smooth and built for the long haul.

SHOP NUMBERS

Every diesel we touch gets the same treatment.

One mechanic, one bay, no shortcuts. We've logged thousands of hours on diesel trucks, and every job gets built to hold up.

1000+

Trucks serviced

From daily drivers to heavy builds, we've seen it all.

8+

Years in diesel

Hands-on experience that shows in every repair.

100%

Built to last

Every job we finish is done right the first time.

CUSTOMER REVIEWS

Diesel owners in Pearl River trust Outlaw

Truck owners keep coming back for tuning, deletes, and rebuilds. Here's what they say about the work.

Brought my duramax in for a tune. Truck runs stronger than it ever did. Outlaw knows these trucks inside out.

Male truck owner in his early 30s, White, casual work attire, standing near a pickup truck

Jake Broussard

Truck Owner, Pearl River

Had a full engine rebuild done after I blew a head gasket. They walked me through everything and the truck's been solid ever since.

Male commercial fisherman in his mid 40s, White, rugged outdoor appearance

Mike Fontenot

Commercial Fisherman

Transmission started slipping on my work truck. They got me back on the road fast. Fair price and honest work.

Male contractor in his late 20s, White, professional work attire, at a construction site

Tyler Landry

Contractor, Slidell

Took my powerstroke in for studs after a coolant leak. Outlaw did the job right and didn't try to upsell me on anything.

Male diesel enthusiast in his late 30s, White, casual appearance, with a modified pickup truck

Derek Miller

Diesel Enthusiast

Straight answers about diesel work

Don't see your question? Call us and we'll get you an answer.

Large V-engine with exposed front timing gears mounted on a stand in a workshop setting.

Professional Engine Rebuilds – Beyond Factory Standards

Call Outlaw Diesel Performance in Pearl River, LA if you're looking for a replacement diesel engine.