Drop Forged Diesel performance shop
Drop Forged Diesel  ·  Tomball, TX

DIESEL PERFORMANCE
SHOP
TOMBALL, TX

Custom ECM tuning, compound turbos, and full fuel system builds for Cummins, Power Stroke, and Duramax. Platform-specific work done right — or not done at all.

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What We Build

Six Capabilities.
Three Platforms.

Platform-specific performance builds for the Cummins, Power Stroke, and Duramax. Everything on this list runs deeper than a bolt-on and a canned tune.

ECM tuning
Core Service
ENGINE TUNING
& ECM PROGRAMMING
Custom EFI Live and HP Tuners pulls — not a mail-order file. Every tune is dyno-verified on your platform, for your mods, on your fuel.
Tuning Details →
Diesel fuel system components
Power Foundation
FUEL SYSTEM
UPGRADES
Injector upgrades, CP3 conversions, FASS and AirDog lift pumps. The fuel system is what everything else runs on.
Fuel Systems →
Compound turbocharger assembly
Compound Builds
TURBO &
FORCED INDUCTION
S300 compound setups, big singles, upgraded stock turbos. Built for sustained power under load — not a dyno-day number.
Turbo Builds →
Lifted diesel pickup truck
Diesel-Specific
DIESEL LIFT KITS
& LEVELING
Torque-rated components for trucks running real power and real weight. Not the same lift kit that goes on a half-ton gas truck.
Lift Kits →
Load-rated diesel dually wheels and tires
Load-Rated Fitment
WHEELS & TIRES
— DIESEL
Load ratings that match what you're pulling. DRW fitment, dual-specific offsets, aggressive MT when the build calls for them.
Wheels & Tires →
Diesel shop build process
Start Here
THE BUILD
PROCESS
Consultation, dyno baseline, build plan, completion pull. You know what you're getting before we touch the truck.
See the Process →
Platform Knowledge

We Don't Tune
Everything.
We Tune What
You're Running.

Every platform has its own power ceiling, its own failure chain, and its own set of variables that change what the correct build looks like. A Cummins isn't a Power Stroke. An LML isn't an L5P. The right answer on one truck is the wrong answer on the next one over. We know the difference because we've pulled the data on all three.

Accountability Standard

THE DYNO SHEET
DOESN'T LIE.

There are a lot of ways to put a number on paper. A canned tune on a stock truck pulls a number. A mail-order file on a platform with 140,000 miles and an upgraded turbo pulls a different number. The difference isn't in the software — it's in whether anyone actually looked at your truck.

Every build we complete leaves with a before-and-after dyno sheet. Not as a marketing asset. Because it's the only honest confirmation that the work held up under load. You know what you came in with. You know what you left with.

Before + After Dyno Pull on Every Build
Every completed build exits with a verified before-and-after sheet. Numbers are real, not estimated.
Platform-Specific Calibration
No cross-platform tune assumptions. Your truck gets calibration written for its platform, its mods, and its use case.
Transparent Build Timeline
Current lead time disclosed on the first call. We don't take on more than we can deliver on schedule.
See the Full Build Process →
Diesel truck on chassis dynamometer
Before
287rwhp
After
524rwhp
2022 Ram 2500 · 6.7 Cummins · EFI Live
12+
Years in Houston
300+
Diesel Builds
1,400+
Dyno Pulls
3
Platforms. Zero Guesswork.
Recent Work

Off Our Bench.

View Full Gallery →
2022 Ram 2500 Cummins build
Sled Pull Build
2022 Ram 2500
Cummins 6.7
S300 Compounds CP3 Conversion 524 rwhp
2019 F-250 Power Stroke build
Towing Performance
2019 F-250
Power Stroke 6.7
CP4 Conversion EFI Live Tune 488 rwhp
2017 Silverado 2500 Duramax build
Street Performance
2017 Silverado 2500
Duramax LML
Injector Upgrade EFI Live Tune 460 rwhp
Ready to Build

THE BUILD
STARTS IN
THE SHOP.

Most shops will quote you over the phone or send an estimate based on what you describe. That's not how this works. Bring your truck in. We'll look at what you're running, talk through your build goals, and give you real answers based on what's actually in front of us — not what you think is in front of us.

Phone and email work too, and we use both. But the builds that go right start with an in-person conversation and eyes on the actual platform.

🛻
Come In. Bring Your Truck. We want to see the actual platform — existing mods, current condition, what's already been touched. Real answers come from looking at the truck, not reading a form.
🤝
Relationships Over Remote Quotes Other shops quote you online. We'd rather sit down with you. That's how a build goes right from day one and stays right through completion.
📅
Transparent on Timeline, Day One You'll know our current lead time and whether your build fits our schedule before you leave the shop. No surprises later.

By submitting, you agree to be contacted by Drop Forged Diesel by phone or text. We do not sell or share your information.

"They pulled my truck three times to get the tune dialed. Never had a shop do that."

— Cummins 6.7 Owner · Houston, TX
Houston metro diesel performance service area
◆ Live CRM Preview — Drop Forged Diesel
Your Request
Is Already Moving.

This is what happens the moment your contact submits that form — before anyone touches a phone.

Hi [Name] — Drop Forged Diesel here. Got your build request for your [Truck]. We'll call you within 24 hours to talk through the build. — Drop Forged Diesel, Houston TX
01
Pipeline Created
Lead lands in the Build Consultation stage automatically.
02
SMS in 30 Sec
Personalized text fired with name and truck before a human does anything.
03
Owner Notified
Internal alert sent to the shop with full lead details and platform.
04
Follow-Up Queued
3-touch follow-up sequence armed if the first call doesn't connect.