Maximize Power and Torque with Precision

Dyno-verified results that deliver performance gains Montana trucks can depend on.

Up In Smoke Diesel specializes in Cummins, Duramax, and Power Stroke platforms with dyno-verified results that maximize horsepower, torque, and reliability. Great Falls diesel trucks face extreme temperature swings, high-altitude stress, and heavy-duty agricultural demands that require precision tuning and diagnostic capability beyond generic shops. Our custom tune protocols and factory-level scanning ensure your truck performs under the conditions Montana throws at it.

Whether you're managing cold-start challenges in single-digit winters or pulling heavy loads at altitude, you need a tuning approach that accounts for the environmental factors working against your engine. We optimize fuel maps for cold-start performance and adjust power delivery to meet the load demands specific to Montana working environments. Your truck's performance isn't just about peak numbers—it's about delivering power reliably when you need it most.



Up In Smoke Diesel delivers the technical depth that keeps trucks running year-round. Our approach combines multi-platform expertise with diagnostic precision to surface issues before they become failures. Performance reliability means your diesel responds predictably under stress, starts clean in extreme cold, and maintains output across elevation and temperature ranges that challenge most tuning setups.

How Custom Tuning Delivers Results

Cold-start optimization adjusts fuel delivery and timing to match Montana's winter conditions, ensuring your engine fires reliably and reaches operating temperature without excessive wear.

 Custom diesel tuning modifies factory calibrations to account for high-altitude air density, load profiles, and temperature extremes that standard tunes overlook. Every tuning session begins with factory-level diagnostics that scan every system, verify sensor accuracy, and establish baseline performance before any adjustments are made.

You'll know what's changing, why it

matters, and what gains to expect before work begins. We walk through dyno results, explain tuning adjustments, and confirm that every modification aligns with how you use your truck. Performance reliability isn't a marketing phrase—it's what happens when tuning accounts for the real-world conditions your diesel faces every day.



Our services address the demands Montana diesel owners face daily:

Schedule your truck's diagnostic scan to identify tuning opportunities and performance issues before they escalate.

We’d be happy to let you know if we can help with your needs.

Up In Smoke Diesel operates with platform-specific certifications and diagnostic capability that separate us from generic diesel shops across the Great Falls region. We don't guess at sensor readings or apply one-size-fits-all tunes—we measure, verify, and adjust based on your truck's current state and intended use. Montana's agricultural and industrial diesel operators need tuning that holds up under sustained load, high-altitude operation, and temperature extremes that exceed what most tuners encounter.

Our commitment to precision means every tune is tested, every diagnostic finding is documented, and every adjustment is traceable. You're trusting your truck's reliability to a shop that understands the stakes—downtime costs money, poor tuning damages engines, and guesswork has no place in diesel performance work. We deliver the results you need with the technical accountability you deserve.



Call for a free performance consultation and find out what your diesel is capable of under Montana conditions.

Built for Montana's Hardest-Working Diesel Platforms

Factory-level diagnostics meet custom tuning protocols for Cummins, Duramax, and Power Stroke engines.