Let me start by saying this: the 2019-2024 Ram 2500 and 3500 with the 6.7L Cummins are incredible trucks. They've got the power, the torque, and the reliability that made Cummins famous. But like every modern diesel, they come with a complex emissions system that leaves a lot of owners scratching their heads.
I've had my 2020 Ram 3500 for about three years now, and it's been a great truck. But the DPF system? Not so much. The constant regens, the heat, the worry about what happens when that filter eventually fills with ash—it's a lot to think about.
After a lot of research and talking to other Cummins owners, I decided to look into DPF delete options. That's when I found TruckTok and their 4"/5" delete pipe with muffler for the 2019-2024 trucks. Here's what I learned about why this mod makes sense and how to decide which size is right for you.
The Problem with the Factory DPF
The Diesel Particulate Filter does its job, but it comes with real costs. It's a ceramic wall-flow filter that traps soot, which means it creates restriction. Your turbo has to push exhaust through that filter, increasing backpressure and making the engine work harder.
Every few hundred miles, depending on your driving, the truck goes into regeneration. It injects extra fuel late in the combustion stroke to raise exhaust temperatures and burn off the trapped soot. That fuel does nothing to move you down the road. It's purely for cleaning the filter.
Over time, ash builds up in the DPF permanently. Soot burns off during regen, but ash doesn't. It's the non-combustible residue from engine oil additives, and it accumulates until the filter is eventually full. Around 150,000-200,000 miles, that ash load gets high enough that the DPF needs cleaning or replacement. That's a $2,000-$3,000 expense waiting to happen.
Why TruckTok?
I'd seen TruckTok's name pop up in a few diesel forums. The feedback was solid, and their prices were reasonable compared to some of the bigger names.
Their 4"/5" DPF delete pipe caught my attention for a few reasons.
First, they offer both sizes. Not every company gives you that choice. You can pick the 4" for a balanced setup or step up to 5" if you want maximum flow.
Second, it comes with a muffler. A lot of delete pipes are straight-through race pipes that are loud and drone on the highway. I wanted the performance gains without the noise. This one is designed for competition applications but includes a muffler for a more refined exhaust note.
Third, it's made from stainless steel. That means it'll last. No rust, no corrosion, no problems down the road.
Fourth, the no-bungs design. Some pipes have extra sensor ports that can disrupt flow. This one is smooth and uninterrupted all the way through.
4" vs 5" – What's the Difference?
This is the question everyone asks. Which size should you get?
The 4" pipe is the sweet spot for most trucks. It's big enough to eliminate the backpressure restriction without being so large that it hurts exhaust velocity. The 6.7L flows well with a 4" system. It's perfect for daily drivers, occasional towers, and trucks that aren't heavily modified.
The 5" pipe is for maximum flow. It's ideal if you're planning serious performance upgrades—bigger injectors, a built transmission, maybe even compounds down the road. It'll support more power and keep EGTs even lower under extreme loads. The trade-off is that it's louder and takes up more space under the truck.
For my truck, which is mostly a daily driver with occasional towing, I went with the 4". It's been perfect. If I was building a 700hp tow rig, I'd probably go 5".
What You Gain After Installation
After installing the pipe and getting a proper tune, the differences were immediate.
Better throttle response: The turbo spools faster without having to push exhaust through a restriction. The truck feels livelier off the line and responds quicker when you step on it.
Lower EGTs: With exhaust flowing freely, temperatures under load dropped significantly. Towing my trailer up grades, I saw EGTs about 150-200°F lower than before. That's less stress on the engine and turbo.
Fuel economy improvement: No more regen cycles burning fuel. My average MPG went up by about 3-4 miles per gallon. It adds up fast when you're driving regularly.
No more regen anxiety: I don't think about regenerations anymore. No watching the dash, no worrying about interrupting a cycle when I shut the truck off.
Eliminated a future expense: That $2,000-$3,000 DPF replacement that was coming at 150,000 miles? Not an issue anymore.
OE Style Hangers Make Installation Easy
One thing I really appreciated about the TruckTok pipe was the OE-style hangers. They match the factory mounting points perfectly, so the pipe hangs exactly where it should. No rattling, no fighting to get things aligned, no weird vibrations.
The downpipe-back design means you're replacing everything from the turbo outlet to the tailpipe. Comprehensive coverage for maximum benefit.
Common Questions
Is it loud with the muffler?
Not at all. It's deeper than stock and you can hear the turbo more, but it's not annoying on the highway. The muffler tames the exhaust note without restricting flow. If you want quiet, this is the way to go.
Do I really need a tuner?
Absolutely. The pipe alone won't work. The truck's computer monitors the DPF system using sensors for differential pressure, exhaust temperature, and soot load. When it detects the DPF is missing, it will set codes, light up your dash, and derate power.
You need a delete tune to disable that monitoring and optimize the engine for the new exhaust flow. Without a tune, the hardware is useless.
Will it pass inspection?
This is for off-road use only. In states with emissions testing, a deleted truck won't pass. Know your local laws before buying.
Does it fit my truck?
Fits 2019-2024 Ram 2500 and 3500 with the 6.7L Cummins. Two important exceptions: it's not suitable for trucks with air-ride suspension, and it won't work on cab and chassis variants. Check your setup before ordering.
What's in the box?
The pipe, clamps, and hardware. Everything you need for installation.
How hard is it to install?
It's straightforward if you're comfortable with exhaust work. The factory DPF is heavy, so having a second person or a jack helps. Expect to spend a few hours on it. The OE-style hangers make alignment easy.
Can I add more power later?
Yes. If you go with the 4" now and decide to build a hot-rod later, you might wish you'd gone 5". But the 4" supports a lot of power. For most people, it's plenty.
Why no bungs?
The no-bungs design means there are no extra sensor ports to disrupt flow. It's a clean, smooth path from turbo to tailpipe. Less turbulence, better flow, more power.
The Verdict
The 2019-2024 6.7L Cummins is a fantastic engine, but the factory DPF system holds it back. It adds backpressure, wastes fuel on regens, and comes with an expensive replacement timeline.
The TruckTok 4"/5" DPF Delete Pipe with muffler solves all of that. It lets the engine breathe, lowers EGTs, improves fuel economy, and eliminates a future expense. And with the muffler, you get the performance without the drone.
Whether you choose the 4" or 5" depends on your goals. For most people, the 4" is perfect. If you're building a high-horsepower monster, step up to the 5".
Paired with a proper tune, this is one of the best upgrades you can make to a 6.7L Cummins. The power gains are real, the fuel savings add up, and the truck just drives better.
If you're on the fence about deleting your 6.7L, this pipe is worth a serious look.
If you've deleted the DPF on your 6.7L Cummins, what size did you go with? Drop your thoughts below.
I've had my 2020 Ram 3500 for about three years now, and it's been a great truck. But the DPF system? Not so much. The constant regens, the heat, the worry about what happens when that filter eventually fills with ash—it's a lot to think about.
After a lot of research and talking to other Cummins owners, I decided to look into DPF delete options. That's when I found TruckTok and their 4"/5" delete pipe with muffler for the 2019-2024 trucks. Here's what I learned about why this mod makes sense and how to decide which size is right for you.
The Problem with the Factory DPF
The Diesel Particulate Filter does its job, but it comes with real costs. It's a ceramic wall-flow filter that traps soot, which means it creates restriction. Your turbo has to push exhaust through that filter, increasing backpressure and making the engine work harder.
Every few hundred miles, depending on your driving, the truck goes into regeneration. It injects extra fuel late in the combustion stroke to raise exhaust temperatures and burn off the trapped soot. That fuel does nothing to move you down the road. It's purely for cleaning the filter.
Over time, ash builds up in the DPF permanently. Soot burns off during regen, but ash doesn't. It's the non-combustible residue from engine oil additives, and it accumulates until the filter is eventually full. Around 150,000-200,000 miles, that ash load gets high enough that the DPF needs cleaning or replacement. That's a $2,000-$3,000 expense waiting to happen.
Why TruckTok?
I'd seen TruckTok's name pop up in a few diesel forums. The feedback was solid, and their prices were reasonable compared to some of the bigger names.
Their 4"/5" DPF delete pipe caught my attention for a few reasons.
First, they offer both sizes. Not every company gives you that choice. You can pick the 4" for a balanced setup or step up to 5" if you want maximum flow.
Second, it comes with a muffler. A lot of delete pipes are straight-through race pipes that are loud and drone on the highway. I wanted the performance gains without the noise. This one is designed for competition applications but includes a muffler for a more refined exhaust note.
Third, it's made from stainless steel. That means it'll last. No rust, no corrosion, no problems down the road.
Fourth, the no-bungs design. Some pipes have extra sensor ports that can disrupt flow. This one is smooth and uninterrupted all the way through.
4" vs 5" – What's the Difference?
This is the question everyone asks. Which size should you get?
The 4" pipe is the sweet spot for most trucks. It's big enough to eliminate the backpressure restriction without being so large that it hurts exhaust velocity. The 6.7L flows well with a 4" system. It's perfect for daily drivers, occasional towers, and trucks that aren't heavily modified.
The 5" pipe is for maximum flow. It's ideal if you're planning serious performance upgrades—bigger injectors, a built transmission, maybe even compounds down the road. It'll support more power and keep EGTs even lower under extreme loads. The trade-off is that it's louder and takes up more space under the truck.
For my truck, which is mostly a daily driver with occasional towing, I went with the 4". It's been perfect. If I was building a 700hp tow rig, I'd probably go 5".
What You Gain After Installation
After installing the pipe and getting a proper tune, the differences were immediate.
Better throttle response: The turbo spools faster without having to push exhaust through a restriction. The truck feels livelier off the line and responds quicker when you step on it.
Lower EGTs: With exhaust flowing freely, temperatures under load dropped significantly. Towing my trailer up grades, I saw EGTs about 150-200°F lower than before. That's less stress on the engine and turbo.
Fuel economy improvement: No more regen cycles burning fuel. My average MPG went up by about 3-4 miles per gallon. It adds up fast when you're driving regularly.
No more regen anxiety: I don't think about regenerations anymore. No watching the dash, no worrying about interrupting a cycle when I shut the truck off.
Eliminated a future expense: That $2,000-$3,000 DPF replacement that was coming at 150,000 miles? Not an issue anymore.
OE Style Hangers Make Installation Easy
One thing I really appreciated about the TruckTok pipe was the OE-style hangers. They match the factory mounting points perfectly, so the pipe hangs exactly where it should. No rattling, no fighting to get things aligned, no weird vibrations.
The downpipe-back design means you're replacing everything from the turbo outlet to the tailpipe. Comprehensive coverage for maximum benefit.
Common Questions
Is it loud with the muffler?
Not at all. It's deeper than stock and you can hear the turbo more, but it's not annoying on the highway. The muffler tames the exhaust note without restricting flow. If you want quiet, this is the way to go.
Do I really need a tuner?
Absolutely. The pipe alone won't work. The truck's computer monitors the DPF system using sensors for differential pressure, exhaust temperature, and soot load. When it detects the DPF is missing, it will set codes, light up your dash, and derate power.
You need a delete tune to disable that monitoring and optimize the engine for the new exhaust flow. Without a tune, the hardware is useless.
Will it pass inspection?
This is for off-road use only. In states with emissions testing, a deleted truck won't pass. Know your local laws before buying.
Does it fit my truck?
Fits 2019-2024 Ram 2500 and 3500 with the 6.7L Cummins. Two important exceptions: it's not suitable for trucks with air-ride suspension, and it won't work on cab and chassis variants. Check your setup before ordering.
What's in the box?
The pipe, clamps, and hardware. Everything you need for installation.
How hard is it to install?
It's straightforward if you're comfortable with exhaust work. The factory DPF is heavy, so having a second person or a jack helps. Expect to spend a few hours on it. The OE-style hangers make alignment easy.
Can I add more power later?
Yes. If you go with the 4" now and decide to build a hot-rod later, you might wish you'd gone 5". But the 4" supports a lot of power. For most people, it's plenty.
Why no bungs?
The no-bungs design means there are no extra sensor ports to disrupt flow. It's a clean, smooth path from turbo to tailpipe. Less turbulence, better flow, more power.
The Verdict
The 2019-2024 6.7L Cummins is a fantastic engine, but the factory DPF system holds it back. It adds backpressure, wastes fuel on regens, and comes with an expensive replacement timeline.
The TruckTok 4"/5" DPF Delete Pipe with muffler solves all of that. It lets the engine breathe, lowers EGTs, improves fuel economy, and eliminates a future expense. And with the muffler, you get the performance without the drone.
Whether you choose the 4" or 5" depends on your goals. For most people, the 4" is perfect. If you're building a high-horsepower monster, step up to the 5".
Paired with a proper tune, this is one of the best upgrades you can make to a 6.7L Cummins. The power gains are real, the fuel savings add up, and the truck just drives better.
If you're on the fence about deleting your 6.7L, this pipe is worth a serious look.
If you've deleted the DPF on your 6.7L Cummins, what size did you go with? Drop your thoughts below.
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