Raided for Diesel Parts... Life Changed Forever
About this episode
A diesel shop owner recounts how an EPA raid upended his life—agents arrived with a federal warrant, seized diesel parts, and even tried to copy digital data. Years later, the case escalated into Clean Air Act conspiracy charges framed as a “blanket charge,” with uncertainty, monitoring, and no clear compliance guidance. The hosts connect the story to broader diesel legality shifts, explaining that “making it not criminal” doesn’t equal permission to “buy and install.”
emergency vehicles
"They're an emergency vehicle. [605.5s] They gotta clear the road so that everybody else can go."
An emergency vehicle is a vehicle that responds to urgent situations, like medical emergencies or fires. Because it has to get there fast, other traffic is expected to make room.
An emergency vehicle is a vehicle used for urgent public-safety response, like ambulances, fire trucks, or police cars. The key idea is that it may need priority access to roads, which is why others are expected to clear the way.
Bobcat dealer
"We became a Bobcat dealer. [630.4s] We saw it all different lines of work, different avenues."
Bobcat is a company that makes heavy-duty construction machines like small loaders. If you’re a “Bobcat dealer,” you sell those machines and usually help with service and parts too.
Bobcat is a brand best known for compact construction equipment like skid-steer loaders and mini excavators. Being a “Bobcat dealer” means the shop sells and supports that equipment line, which often overlaps with diesel engine and hydraulics service work.
Mahindra
"I do a lot of work with the Mahindra rock stores. [635.4s] They were a little diesel powered UTV."
Mahindra is a company that makes vehicles and equipment, including farm and off-road machines. Here, they’re talking about working on Mahindra diesel utility vehicles.
Mahindra is an automotive and equipment brand (especially known for tractors and off-road utility vehicles). Mentioning “Mahindra” here suggests the speaker worked with Mahindra diesel-powered UTVs, which are common in farm and job-site use.
diesel powered
"I do a lot of work with the Mahindra rock stores. [635.4s] They were a little diesel powered UTV. [640.5s] We found other methods and ways to work,"
A UTV is a rugged off-road vehicle you can use for work, like hauling or getting around a job site. “Diesel powered” means it runs on a diesel engine, which is often chosen for pulling power.
A UTV (utility task vehicle) is a side-by-side off-road vehicle built for work, not just recreation. “Diesel powered” means it uses a diesel engine, which typically emphasizes torque for hauling and steady load work.
o-rings
"We had cabinets full of parts, [751.9s] O-rings, test plates, [754.7s] whatever you may wanna call them, different things."
O-rings are little rubber seals that help stop fluid or gas from leaking. They sit between parts so the connections stay tight even under heat and pressure.
O-rings are small rubber sealing rings used to prevent leaks between parts. In diesel and turbo systems, they’re often used around fittings and housings where high pressure or heat can otherwise cause seepage.
test plates
"We had cabinets full of parts, [751.9s] O-rings, test plates, [754.7s] whatever you may wanna call them, different things."
Test plates are like purpose-built test parts. They’re used to check whether other parts fit right and work properly before you put them into a vehicle.
Test plates are custom test fixtures or plates used to evaluate components—often for sealing, fitment, or flow characteristics. In a parts shop context, they’re typically used to verify that parts work correctly before installation or further machining.
turbo
"We had different turbos, manifolds, [758.8s] all kinds of stuff on the show."
A turbocharger is a device that uses exhaust gases to spin and push more air into the engine. More air usually means more power, but it needs good sealing and cooling to work well.
Turbochargers (often shortened to “turbos”) use exhaust gas to spin a turbine, forcing more air into the engine. That extra air helps diesel engines make more power and improves efficiency, but it also makes the system sensitive to boost leaks and heat.
manifolds
"We had different turbos, manifolds, [758.8s] all kinds of stuff on the show."
Manifolds are the passageways that move exhaust or intake air around the engine. They help route gases to the right places so the turbo and cylinders get what they need.
Manifolds are engine ducting components that route gases to and from cylinders. In turbo diesel setups, exhaust manifolds feed the turbo, and intake manifolds distribute pressurized air to the engine.
hard drive
"They wanted to copy computers, hard drives. [783.2s] And they brought in the most primitive computers"
Hard drives are computer storage devices that keep files even when the computer is off. In this context, they’re being targeted because they might contain important digital information.
Hard drives are data storage devices that keep digital information on spinning disks. In automotive theft or IP-copying scenarios, people may target them to extract calibration files, software, or design data.
delete
"Some of these jobs, let me point this out, like it might not even be, say, a deleted vehicle come in the shop for work on it. Even if we hadn't been the one to delete it, and we get a truck comes in and needs a turbocharger, and you change the turbo on it, you are now responsible for that delete."
Here, “delete” means someone removed or turned off parts that control a truck’s exhaust pollution. The discussion is about how a shop can still be held responsible if they work on a truck that already had those emissions parts removed.
In this context, a “delete” refers to removing or disabling emissions-control equipment on a diesel (often to eliminate emissions systems like EGR/DPF/SCR). The hosts are discussing how responsibility can be assigned to the shop if they later work on a vehicle that has already been modified.
rolling coal
"And I'd tell them that, you know, that pickup's rolling coal, absolutely."
“Rolling coal” means a diesel truck blows out a lot of thick black smoke when you accelerate. It’s often caused by changes to how the engine injects fuel, so it smokes more than normal.
“Rolling coal” is slang for a diesel vehicle producing very heavy, sooty exhaust smoke under acceleration. It’s usually associated with modifying the engine’s fueling/air setup so the engine burns more fuel than it can cleanly combust, creating visible black smoke.
transfer weight sled
"I had to explain to them what a weight, what a transfer weight sled is."
A “transfer weight sled” is a heavy sled used in truck pulling events. It’s designed so the sled’s weight shifts in a way that changes how the truck grips the ground while it pulls.
A “transfer weight sled” is a drag/traction sled used in pulling competitions that shifts the load to change how weight transfers during the pull. By moving the sled’s mass or attachment point, it can increase traction demands and make the pull more dynamic than a fixed-weight sled.
drag racing
"Or drag racing, you know, they just didn't get it."
Drag racing is a straight-line race where cars or trucks try to get to the finish as fast as possible. The setup and launch matter a lot because traction affects how quickly they accelerate.
Drag racing is a motorsport where vehicles accelerate over a straight, measured distance (often a quarter-mile) to determine the fastest time. It’s commonly associated with staging, launch technique, and drivetrain/traction setup to maximize acceleration.
Tesla Semi
"And if you watched me in history, I do the uphill semi truck drag racing, which was kind of born and evo..."
The Tesla Semi is a large electric truck used to move cargo. Instead of using diesel fuel, it runs on electricity stored in its batteries. People talk about it because it’s meant to do long-haul work while using a different kind of power.
The Tesla Semi is an all-electric heavy-duty semi truck designed for long-distance freight hauling. It’s significant because it represents a shift from diesel-powered trucking toward battery-electric power, which is a big topic in discussions about efficiency and emissions. It may come up in a podcast because it’s also tied to performance and real-world capability, not just fuel savings.
Cupra Born
"... uphill semi truck drag racing, which was kind of born and evolved in Canada. They all come here to race..."
The Cupra Born is a small electric car (a hatchback). It uses a battery and an electric motor instead of a gasoline engine. It’s brought up because it’s designed to be fun to drive, including in events where cars race or climb hills.
The Cupra Born is an electric compact hatchback from the Cupra brand, built for everyday driving with an electric powertrain. It’s often discussed in performance-focused settings because it can deliver quick acceleration and is popular among drivers who want an EV that feels sporty. In a podcast context, it may be mentioned as part of the broader lineup of vehicles showing up for racing or uphill runs.
remanufactured engines
"They have a complete lineup of Cummins, Duramax and Powerstroke remanufactured engines that are set to a standard of ISO 9001 2015 standards..."
A remanufactured engine is a used engine that gets taken apart and rebuilt. Instead of leaving it as-is, the shop replaces worn parts so it can work like a properly functioning engine again.
A remanufactured engine is rebuilt using a used core (the original engine) that’s disassembled, inspected, and repaired or replaced with new or reconditioned parts. The goal is to restore it to a reliable, near-original specification rather than just repairing one failed component.
power stroke
"They have a complete lineup of Cummins, Duramax and Powerstroke remanufactured engines..."
Powerstroke is Ford’s diesel engine brand. “Powerstroke remanufactured engines” means rebuilt Ford diesel engines sold as replacements.
Powerstroke is Ford’s diesel engine brand name, widely known in the heavy-duty truck world. When a remanufacturer lists “Powerstroke remanufactured engines,” it’s referring to rebuilt versions of Ford’s diesel engine platform.
Duramax
"They have a complete lineup of Cummins, Duramax and Powerstroke remanufactured engines..."
Duramax is GM’s diesel engine line. If you see “Duramax remanufactured engines,” it means those GM diesel engines are rebuilt for replacement.
Duramax is GM’s diesel engine brand name, most commonly associated with its V8 diesel engines in heavy-duty trucks. A “Duramax remanufactured engine” means a rebuilt version of that GM diesel platform for replacement.
Cummins
"They have a complete lineup of Cummins, Duramax and Powerstroke remanufactured engines..."
Cummins makes diesel engines used in lots of trucks. If someone sells “Cummins remanufactured engines,” they’re rebuilding that engine type so you can replace a worn or failed one.
Cummins is a major diesel engine manufacturer, best known for producing heavy-duty inline-six diesels used in many North American trucks. When a remanufacturer offers “Cummins remanufactured engines,” it means they rebuild that specific engine family for replacement use.
ISO 9001 2015 standards
"They have a complete lineup of Cummins, Duramax and Powerstroke remanufactured engines that are set to a standard of ISO 9001 2015 standards..."
ISO 9001 is a quality standard that companies follow to make sure they have consistent processes. If an engine remanufacturer meets it, it usually means their rebuilding and testing steps are more controlled and less random.
ISO 9001 is a globally recognized quality-management standard. When a remanufacturer says it meets ISO 9001:2015, it means their processes for building, testing, and controlling quality are audited and managed to reduce defects and variability.
quality testing validation
"And there's certain levels of quality testing validation that are required for that."
This means the engine isn’t only put back together—it’s also tested to confirm it meets certain standards. The goal is to catch problems before the engine goes to the customer.
Quality testing validation refers to the required tests and checks used to confirm an engine meets defined performance and durability criteria. In an aftermarket context, it’s meant to prove the rebuild isn’t just assembled correctly, but also performs reliably under expected conditions.
industry leading warranty
"with an industry-leading warranty that's really comprehensive."
A warranty is the promise that if something goes wrong, the company will cover repairs or replacement. A “leading” warranty usually means it lasts longer or covers more than average.
An industry-leading warranty is a warranty package that’s positioned as unusually strong in coverage and/or duration compared with typical aftermarket offerings. For remanufactured engines, the warranty is a key part of risk reduction because it backs the rebuild if problems appear after installation.
OEM engine
"sometimes the options that are out there, it's just, it's a basic OEM engine."
OEM means “made by the original manufacturer.” A basic OEM engine is rebuilt to match the factory design, not modified for extra power or different performance goals.
An OEM engine is an Original Equipment Manufacturer engine—built to the same basic design and specifications as what the vehicle manufacturer originally installed. In the aftermarket, “basic OEM” implies a stock-like rebuild rather than a performance or upgraded configuration.
tow haul
"So there's a bunch of different series of engines that they have from core, street, tow haul, and also the speed of air series..."
Tow/haul is a mode or setup meant for towing heavy loads. It’s designed to keep the engine working comfortably under sustained strain instead of only short bursts.
“Tow/haul” refers to engine and calibration setups intended for heavy towing and load-carrying use. In diesel trucks, it typically means durability-focused tuning and/or components that handle sustained higher loads more effectively than a purely stock configuration.
speed of air series
"and also the speed of air series, which we've covered on the podcast before."
“Speed of air series” sounds like a specific engine lineup aimed at improving airflow. Better airflow can help the engine burn fuel more efficiently and make more power.
“Speed of air series” appears to be a branded engine lineup or configuration category focused on airflow-related performance. The phrase suggests the series is designed around improving how air moves through the engine for better combustion and output, rather than being a stock-style rebuild.
two microns
"up to 99% of water and filters debris down to two microns. This alone can triple the life expectancy of your fuel system"
A micron is a tiny unit of measurement. If a filter catches particles as small as two microns, it means it can remove very fine dirt from the fuel so it doesn’t harm the fuel system.
Microns are a unit of particle size. A fuel system filter that captures debris down to two microns is designed to remove extremely fine contaminants before they can damage precision fuel components.
fuel system
"This alone can triple the life expectancy of your fuel system while also restoring lost power and efficiency."
Your fuel system is everything that gets fuel from the tank to the engine. If it’s dirty or contaminated, the engine can lose power and the parts can wear out faster.
The fuel system is the set of components that stores, pumps, filters, and delivers fuel to the engine at the right pressure and timing. On diesels, keeping it clean is especially important because small contaminants can cause power loss and accelerate wear.
diesel pickup truck
"Whether you have a diesel pickup truck or commercial vehicle or anything in between, there's a fast fuel system for your rig"
A diesel pickup truck is a truck that uses a diesel engine. Diesel engines rely on clean fuel, so upgrades that filter and remove water can help it run better and last longer.
A diesel pickup truck is a light-duty truck powered by a diesel engine, typically used for towing, hauling, and off-road or work applications. Diesel fuel systems are sensitive to contamination, so filtration and water removal are common upgrade targets.
fastride.com
"made right here in the USA. Visit fastride.com to find the perfect fuel system upgrade for your truck."
fastride.com is the website they’re pointing you to for a fuel system upgrade. It’s marketed as a U.S.-made option for diesel trucks.
fastride.com is the website being promoted for an aftermarket “fast fuel system” upgrade. The brand is presented as a U.S.-made solution for diesel fuel system improvements.
Class 8 semi-truck
"and that was their income, their Class 8 semi-truck. Not only were they not able to go make money that week,"
Class 8 is the category for the largest commercial trucks used for hauling goods. A semi-truck is the big truck that pulls a trailer, usually for long-distance work.
“Class 8” is a U.S. heavy-truck weight class for the biggest commercial trucks, typically used for long-haul freight. A “semi-truck” is the tractor unit that pulls a trailer, and Class 8 is the category most people mean when they talk about major trucking operations.
check engine light
"or another check engine light would come on two days down the road and just the levels of frustrations."
The check engine light is a warning that the truck’s computer found a problem. It usually means you should get the codes read so you know what’s wrong.
The “check engine light” is the dashboard warning that the engine or emissions system has detected a fault. On diesel trucks, it often points to issues that can affect drivability, emissions compliance, or fuel economy, and it may require scanning diagnostic codes to identify the cause.
rolling call thing
"when I was younger and we first was getting into this, the whole rolling call thing and we did it to ourselves, guys."
“Rolling call” sounds like slang for cruising around in a group. Here, the speaker is saying the way people do it can attract unwanted attention.
“Rolling call” is slang in some diesel communities for street driving or cruising in a group, often with loud or modified vehicles. In this context, the host is linking it to how attention is drawn when modified trucks are used in the wrong place.
deletion
"I mean, this whole rolling call thing and we did it to ourselves, guys. I mean, this whole deletion thing really brought the attention"
“Deletion” usually means removing or disabling the parts that control exhaust emissions on a diesel. People do it for different reasons, but it can be illegal and can cause other issues if not done correctly.
In diesel circles, “deletion” usually refers to removing or disabling emissions-control equipment (often paired with software changes) so the truck runs without those systems. It’s controversial because it can increase emissions and can also lead to legal and compliance problems, depending on where the truck is used.
emissions goals
"make it better and still do it within a framework of whatever sort of emissions goal or emissions output they're trying to do"
An emissions goal is a rule about how clean a vehicle has to be. It sets targets for how much pollution the exhaust can produce, and that influences what changes people make to meet the rules.
An emissions goal is a regulatory target for how much pollution a vehicle or fleet is allowed to produce. In practice, it drives what technologies and calibration strategies automakers and policymakers require to reduce exhaust pollutants.
EPA emissions output
"whatever sort of emissions goal or emissions output they're trying to do"
Emissions output is how much pollution comes out of the exhaust when the truck is tested. If the numbers are low enough, it can pass emissions checks; if not, it fails.
Emissions output is the measurable amount of exhaust pollutants a vehicle produces under testing. It’s the practical number regulators and test labs care about when determining whether a truck “passes” or “fails” emissions-related checks.
opacity tests
"We've got trucks that we sent to California that had carb testing done. I mean, they're passing opacity tests,"
Opacity tests check how smoky the exhaust is. They measure how much light the smoke blocks—more smoke usually means more soot, and passing means the truck is producing less visible pollution.
Opacity tests measure how “dark” exhaust smoke is, usually by shining light through the exhaust plume and quantifying how much light is blocked. For diesels, higher opacity generally indicates more soot/particulate in the exhaust, so passing opacity tests is a sign the truck is controlling smoke.
carb testing
"We've got trucks that we sent to California that had carb testing done."
“CARB testing” means emissions testing under California’s air-quality rules. It’s a way to check whether a vehicle (or emissions setup) meets the standards California requires.
“CARB” refers to the California Air Resources Board, which sets and enforces air-quality rules in California. “CARB testing” typically means emissions testing to California standards, often used to verify whether a vehicle or emissions-related modification meets legal limits.
common rail injection
"We sent trucks to be tested. With common rail injection and with the technology"
It’s a modern way of feeding fuel into a diesel engine. The engine can precisely control when and how much fuel goes to each injector, which helps the exhaust be cleaner.
Common rail injection is a diesel fuel system where a high-pressure “rail” stores fuel and electronically meters it to the injectors. Because the pressure and timing can be controlled precisely, it helps diesels run cleaner and more efficiently than older mechanical systems.
tailpipes
"you can be so clean at the tailpipe that a lot of the stuff isn't needed"
The tailpipe is where the exhaust comes out. When someone says it’s “clean at the tailpipe,” they mean the exhaust coming out of the vehicle is cleaner.
The tailpipe is where exhaust exits the vehicle, so “clean at the tailpipe” refers to how much pollution is measured at the exhaust outlet. It’s a key point in emissions testing because regulations focus on what comes out of the vehicle, not just how it drives.
Clean Air Act
"but you've never had the opportunity to prove it because part of the thing was with the Clean Air Act or with the EPA, what they would sit and say is"
The Clean Air Act is a U.S. law meant to limit air pollution. It’s why some emissions changes to vehicles can be restricted or prohibited.
The Clean Air Act is a major U.S. federal law that regulates air pollution. In this context, it’s being used to explain why certain emissions-related modifications—especially those that remove or defeat factory equipment—are treated as illegal or unacceptable.
EGR filters
"I mean, there's so many parts, whether it's piston design or the EGR filters or DPF, high flow DPFs or tuning"
EGR is a system that sends some exhaust back into the engine to cut down on harmful emissions. The “EGR filters” are parts that catch soot in that exhaust stream so the system can keep working properly.
EGR (exhaust gas recirculation) systems route some exhaust back into the engine to reduce combustion temperatures and lower NOx emissions. “EGR filters” are components in that exhaust recirculation path that can collect soot and need maintenance or replacement.
DPF
"whether it's piston design or the EGR filters or DPF, high flow DPFs or tuning"
A DPF is a diesel exhaust filter that traps soot so it doesn’t go out into the air. Over time it has to clean itself (regenerate) or it can cause problems with the car.
DPF (diesel particulate filter) is a diesel emissions device that traps soot particles from the exhaust. It periodically burns off the collected soot through regeneration, and restrictions or failures can cause drivability and emissions issues.
tuning
"or the EGR filters or DPF, high flow DPFs or tuning and the capability they have with that"
“Tuning” typically means changing the computer settings in the engine. On diesels, that can change how the car burns fuel and how its emissions systems (like the DPF) behave.
In diesel contexts, “tuning” usually means reprogramming the engine control unit (ECU) to change fueling, boost, and emissions-related strategies. It can affect how the DPF regenerates and how the engine meets emissions targets.
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