Diesel pickup and excavator in a tuning workshop at night

Heavy equipment, 18-wheelers & diesel pickups

Diesel tuning built for work trucks, semis & iron that earns its keep

Torque Line Tuning is based in Harbeson, Delaware and travels to Maryland, Virginia and New Jersey but can travel further for multiple machines. We specialize in heavy equipment and highway truck calibration, plus custom diesel tuning for pickup trucks. Not local to us? We unlock and tune mail-in ECMs for nearly every HD diesel on the road or job site.

Services from $1,500 USD · Call or email to book

Heavy iron & highway trucks first

We built the shop around excavators, skid steers, dozers, and Class-8 diesel — with pickup tuning as a specialty, not an afterthought.

Delaware shop, Mid-Atlantic reach

Located in Harbeson, DE and we travel to Maryland, Virginia and New Jersey. We can travel more for multiple machines.

Mail-in ECM unlock & tune

Pull the ECM and ship it in. We unlock, flash, and bench-test controllers for almost every HD diesel before they head back to you.

Mail-in ECM service

Ship the computer, we tune it and send it back

Pull the ECM off your HD diesel machine or truck and mail it to the shop. We unlock and bench-flash the controller, then ship it back within 48 hours ready to install. Email us first with your make, model, and serial number so we can verify it can be bench flashed and give you the exact shipping instructions.

  • 48-hour turnaround once we receive the ECM
  • Bench-tested before it ships back — plug in and go
Mail-in details
Diesel ECM connectors and wiring harness on a tuning bench

Categories

Choose your make

Pickup Trucks

Pickup Trucks

FordFord6.7 Powerstroke pickups up to 2025, flashed over EZLynk.1 service · from $1,700 USD
GM / DuramaxGM / DuramaxLML through L5P. 2017–2023 handled with the HP Tuners ECU unlock.2 services · from $1,600 USD
Ram / DodgeRam / DodgeCummins pickups through 2021 and the 3.0 EcoDiesel on Trasdata.2 services · from $1,600 USD
Highway Trucks

Highway Trucks

CumminsCumminsLive tuning for 18-wheelers plus construction and forestry power units.11 services · from $1,500 USD
Volvo / MackVolvo / MackTrasdata bench work on Volvo and Mack highway trucks.8 services · from $1,800 USD
DetroitDetroitMCM and ACM read with Trasdata, 2013–2023.7 services · from $1,800 USD
PaccarPaccarNew Genius on 2016 and older, ACM flash on 2017–2023.8 services · from $1,800 USD
Equipment & Industrial

Equipment & Industrial

Caterpillar / PerkinsCaterpillar / PerkinsLive tuning through Cat ET with flashed files.7 services · from $1,800 USD
KubotaKubotaChip solution for Kubota compact and industrial engines.7 services · from $1,800 USD
John DeereJohn DeereTracked skid steers, compact loaders, and forestry machines.6 services · from $1,800 USD
BobcatBobcatT-series compact track loaders and skid steers.6 services · from $1,800 USD
Farming & Agriculture

Farming & Agriculture

John Deere AgJohn Deere AgRow-crop and utility tractors plus combines.6 services · from $1,800 USD
Case IHCase IHMagnum, Puma, and Maxxum tractors and combines.6 services · from $1,800 USD
JCBJCBFastrac tractors, telehandlers, and Dieselmax power units.6 services · from $1,800 USD
FendtFendtVario tractors and high-hour field machines.6 services · from $1,800 USD
Kubota AgKubota AgM-series and utility farm tractors.6 services · from $1,800 USD