LSX Power Tuning

LSX Power Tuning Over 20 years of experience in GM and Holley EFI calibration, covering everything from stock applications to 3,000+ horsepower builds. Dyno Tuning .

Extensive work with turbocharged, supercharged, and nitrous-assisted combinations. Specialized in drag-and-drive setups Street Tuning . Custom Fabrication . Installation


We specialize in reprogramming late model ecm/pcm's.​ We offer all kinds of tuning from Street tunes, Email, Tunes, Remote Tunes, Mail Order Tunes, Dyno Tunes, and Track Tunes. In the last fifteen years we have tuned everything

from stock cars to 1,500+hp LS street cars, race cars, twin blown big block race boats to RV's. We have a in house chassis dyno with eddy brake that we do our dyno tuning on at our shop.

We’re known for dialing in high-performance cars and trucks—but that’s not all we do. We also spend a lot of time tuning...
05/02/2026

We’re known for dialing in high-performance cars and trucks—but that’s not all we do. We also spend a lot of time tuning rock crawlers and off-road Jeeps to perform where it matters most: on the trail.

Injector cleaning available for port and DI setups.Cars, trucks, powersports, marine.Message us if you’ve got a set that...
04/23/2026

Injector cleaning available for port and DI setups.
Cars, trucks, powersports, marine.
Message us if you’ve got a set that needs service.

Here’s another unique swap you don’t see every day that we had the opportunity to tune.
04/21/2026

Here’s another unique swap you don’t see every day that we had the opportunity to tune.

Not just LS/LT swaps—we also modernize older platforms with Holley EFI.This small block was upgraded with a Terminator X...
04/16/2026

Not just LS/LT swaps—we also modernize older platforms with Holley EFI.

This small block was upgraded with a Terminator X Stealth system with full timing control. From the driver’s seat, it behaves like a late-model setup—clean cold starts, seamless hot restarts, smooth cruising, and consistent performance at WOT.

If you didn’t open the hood, you’d never know it’s not an LS swap.

In just a couple of days it will be three years since we lost a great friend, role model, and customer far too soon. Fre...
04/15/2026

In just a couple of days it will be three years since we lost a great friend, role model, and customer far too soon. Fred Henson came to us as a tuning customer and quickly became someone I was proud to call a friend. Over the years we worked on several projects together, tuning all of his race cars along the way. At his request, we tuned all of his Cobrajets — a true honor, even for an LS shop like ours. Working with Fred was a privilege, and what he taught me about life and business stayed with me long after each conversation. He was a genuinely great person who touched countless lives, and he is still deeply missed.

The most challenging build we’ve taken on to date.We removed the entire drivetrain from the truck, fully rebuilt and upg...
04/14/2026

The most challenging build we’ve taken on to date.

We removed the entire drivetrain from the truck, fully rebuilt and upgraded it, then integrated it into the Suburban. The original 6.0/4L80 setup struggled pulling a 40ft, 10k lb camper—especially on hills—and fuel mileage was poor.

Now it’s powered by a built LMM Duramax, and the difference is night and day. It tows effortlessly and performs exactly how it should.

We also retained full functionality of all Suburban and Duramax systems—everything operates seamlessly, just like it would have from the factory if GM had built it this way.

We're heading out to Shift Sector for the 1/2 mile event in Hondo TX and will be back Monday.After breaking the transmis...
04/09/2026

We're heading out to Shift Sector for the 1/2 mile event in Hondo TX and will be back Monday.

After breaking the transmission at the October Mile, we took the time to get the car right and come back prepared. The 2006 C6 Z06 is built on a 400 cu Dart block with Brodix BR7 heads, running the F1X ProCharger at 40lbs of boost, M**h Headz direct port methanol injection, Holley EFI, and C16 race fuel. Full manual, three pedals.

The goal this weekend is a 200mph pass with a stick shift. We've done the work — now it's time to go find out.

Follow along this weekend for updates. 🤞

**hHeadz

🔧 2014 Silverado | Camaro IPC Swap — Fully FunctionalWe recently completed a Camaro instrument cluster swap on a 2014 Si...
04/08/2026

🔧 2014 Silverado | Camaro IPC Swap — Fully Functional
We recently completed a Camaro instrument cluster swap on a 2014 Silverado equipped with a cammed 6.2L engine and 10-speed transmission swap. This wasn’t a cosmetic swap — every function works, the upgraded cluster brings a 7,500 RPM tachometer and 200 MPH speedometer to match the capability of the drivetrain, along with several features and options that were never available on this truck from the factory.
Getting an IPC swap like this to communicate properly takes precision programming and the right expertise. A special thank you to Custom ECM for their support in making this integration seamless.
This is just a preview — we have a more in-depth post coming that covers the full scope of this build. Stay tuned.

📲 Follow us for more builds and updates.
💬 Have questions about this swap? Drop them in the comments.

LS-swapped Bel Air we’ve had in the shop for extensive work. Finished it off with an ITB conversion and full tuning—this...
04/07/2026

LS-swapped Bel Air we’ve had in the shop for extensive work. Finished it off with an ITB conversion and full tuning—this one turned out right.

Here’s the cammed 5.3L / 4L60E swap we knocked out a while back — now fully alive and running trouble free on the Holley...
04/06/2026

Here’s the cammed 5.3L / 4L60E swap we knocked out a while back — now fully alive and running trouble free on the Holley Terminator X Max system!
This Gen III 5.3 got a healthy cam upgrade, paired with a 4L60E, and the Terminator X Max handles everything: engine management and full electronic transmission control (shift points, line pressure, torque management — the works).
From cold starts to wide-open throttle, it drives incredibly smooth for a cammed setup. The Holley touchscreen makes monitoring super easy.

04/03/2026

Hey everyone!
It’s been way too long since we’ve been active on Facebook — the shop has been absolutely slammed and we apologize for the long silence!
We’re back and excited to start posting regularly again. We’ve been doing a lot of LS/LT and Holley tuning, Holley installs, 10L swaps, custom IPC programming, and CAN integration projects lately. You’ll be seeing plenty of photos from past projects and current builds coming your way soon.
Quick scheduling update:

In-shop projects / builds → booked out a couple of months
Dyno tuning → about 2 weeks out
Email / Mail-order tuning → fast 2-3 day turnaround

If you’re thinking about a build or need tuning, feel free to reach out. We’re answering calls and messages as fast as we can.
Thanks for sticking with us — we’re excited to share more of what we’ve been working on!

Address

205 Wild Flower Road
Brenham, TX
77833

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

Telephone

+19792090325

Website

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