Diagnostics & Repair
No-starts, DEF and emissions headaches, sensors, transmissions. Found fast and fixed right, often the same day.
Diesel & Automotive · Granbury, TX
Diesel
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Diesel
done right.
Repairs, custom tuning and performance builds, proven on our own in-house dyno. Honest prices, straight answers, and a crew that treats your truck like it's theirs.
What we do
Fixed right.
Fixed right.
Built to pull.
From a check-engine light to a full performance build, we handle it in house, and we'll tell you straight what your truck needs and what it doesn't.
Custom Tuning
AMDP custom tunes on EZ LYNK, HP Tuners and EFILive for Powerstroke, Cummins and Duramax, dialed in on our dyno.
Turbos & Performance
Smeding turbos, S&S fuel kits, exhaust and more, installed by people who actually run this stuff.
In-House Dyno
Real horsepower and torque numbers, no guessing. Book a private session or bring it out to Dyno Day.
Engine Rebuilds
From an old 7.3 to a late-model 6.7, complex diagnostics and full rebuilds done with care.
Maintenance & AC
Fluids, filters, AC repair and the everyday work that keeps your truck (or your car) on the road.
Ford PowerstrokeRam CumminsGM DuramaxAMDPEZ LYNKHP TunersEFILiveSmedingS&S Diesel
5.0Google rating
35Google reviews
1In-house dyno
3Powerstroke · Cummins · Duramax
Our work
Out of the shop.
Out of the shop.
Onto the rollers.
Dyno Days
Dyno
Dyno
Days
Horsepower, smoke and bragging rights on the rollers in Granbury. Bring your truck or just come watch.
00Days
00Hours
00Min
00Sec
- Get your number online. Takes 20 seconds, right from your phone.
- Watch your spot live. Your ticket counts down the trucks ahead of you.
- Roll on when you're up. We scan your ticket and you're on the dyno.
Since 2023Granbury, Texas
About the shop
A shop you
A shop you
can trust.
Twisted Pistons was started in 2023 by Zac and his wife, just outside Granbury on the Glen Rose Highway. They'd both had bad experiences at shops, so they built this one around a simple idea:
You should never have to wonder if you're being taken advantage of.
- Straight answers, no upsell
- Same-day fixes when we can
- Diesel and gas, trucks and cars
- Real numbers on our own dyno
Parts & tuning store
Shop by truck.
Tunes, turbos, exhaust and the parts we trust, ready to order online or have us install.
Get in touch
Let's get your truck
Let's get your truck
right.
Call, text or stop by
817-559-1919Tap to call the shop
Text usSend a photo of the problem
6707 Glen Rose HwyGranbury, TX 76048 · Get directions
Emailoffice@twistedpistonsdiesel.com
Shop hours
Hours| Monday | 8 AM – 6 PM |
| Tuesday | 8 AM – 6 PM |
| Wednesday | 8 AM – 6 PM |
| Thursday | 8 AM – 6 PM |
| Friday | 8 AM – 6 PM |
| Saturday | Closed |
| Sunday | Closed |
Holiday hours vary.
Get a quote
Tell us about your truck and what's going on. We'll get back to you, usually the same business day.