The best ECM Tuning for your heavy duty truck.
Boost your horsepower, increase your fuel efficiency, and increase your uptime so you can make more money.
Increase Your Horsepower
PDI increases horsepower at least 20%. Need more? Let us know.
Increase Your Fuel Efficiency
Optimize your engine to run the way it should. You'll like the way your engine performs ... we guarantee it!
Lower Your Operating Costs
Stop spending money on things you don't need, like Regens, DEF Fluid, & After-treatment Repairs.
How to do Business with Us
Call to discuss your Tuning Project
Click below to call and get started.
Schedule Your ECM Tuning
Either mail your ECM to us or schedule a time bring your truck to us.
Experience the Freedom
Experience the horsepower, efficiency gains, and lower costs. Great Choice!
Why Do Business with us?
Big Shop has dealers and friends spread out all over the USA.
Our owner and technicians have been keeping trucks running over a combined 200 years. We're committed to doing things right.
Same day service in most cases. 24 Hour turnaround time on ECMs that are mailed.