Air Intake Resonator V1.0

sprinter.motors

SPRINTERTECH
We’re currently developing two Air Intake Resonator Delete options and wanted to share our direction:

Option 1 – Resonator Delete Only

Retains the factory aluminum charge pipe and intercooler hose while removing the OEM resonator.
Option 2 – Full Intake Delete
Replaces the intake path from the turbocharger to the intercooler, eliminating the factory aluminum pipe and intercooler hose. The system connects via a reinforced silicone elbow.
Both options are in the prototype stage and will undergo extensive testing for fitment, durability, and heat resistance before any public release.
Initial prototypes will be produced using high-temperature, carbon-fiber-reinforced polymers selected for under-hood environments.

Why consider upgrading the Air Intake Resonator?​

1) Reduced failure points

The factory intake system uses multiple components:
  • Intake resonator
  • Aluminum charge pipe
  • Intercooler hose
  • Multiple seals, joints, and clamps
Each connection is a potential failure point, especially Air Intake resonator and the Intercooler hose. Over time, heat cycling, oil contamination, and boost pressure degrade these parts. A simplified or consolidated design reduces the number of components that can fail unexpectedly.

2) Improved long-term reliability

Intake resonators and intercooler hoses are known wear items on higher-mileage vans. Failures often occur without warning and can leave the vehicle in limp mode or undrivable.
An upgraded solution is intended to:
  • Minimize age-related failures
  • Improve resistance to heat soak and oil exposure
  • Provide more consistent performance over time

3) Simplified intake layout

A single, purpose-built intake assembly:
  • Reduces complexity
  • Improves serviceability
  • Makes future repairs and inspections easier
This is especially valuable for owners who maintain their own vehicles or travel long distances.

4) Cost consolidation

Replacing multiple OEM components individually can be expensive. An upgraded intake solution can consolidate several parts into a single assembly, reducing overall replacement costs over the life of the vehicle.

5) Sound control

The OEM resonator is primarily an NVH component. When upgrading, the goal is not simply to remove it, but to:
  • Retain or re-engineer silencing where appropriate
  • Avoid unwanted whistling or resonance

6) Designed from service experience

The motivation behind the upgrade comes from repeated real-world service exposure — seeing the same components fail over time across different vehicles and usage patterns — and designing alternatives that better align with long-term ownership needs. Last year only our shop replaced over 200 Resonators and over 150 intercooler pipes.

Bottom line​

Upgrading the air intake resonator is less about performance gains and more about:
reducing failure points, improving durability, simplifying service, and offering owners an alternative that fits their use case.

Stay tuned !



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Dax Travels

2011 Freightliner 3500 DRW
This is an issue for my 2011 OM642. I've replaced seals and readjusted several times and it is always a temporary fix. Perhaps a new attenuator would hold better but I ended up with a weird 3 hose clamp solution to keep the attenuator attached to the charge pipe going to the turbo and haven't had a problem in years. So have not replaced my attenuator.

Going to keep an eye on this. I may be interested once you finish development.
 

Jimdoe100

New member
We’re currently developing two Air Intake Resonator Delete options and wanted to share our direction:

Option 1 – Resonator Delete Only

Retains the factory aluminum charge pipe and intercooler hose while removing the OEM resonator.
Option 2 – Full Intake Delete
Replaces the intake path from the turbocharger to the intercooler, eliminating the factory aluminum pipe and intercooler hose. The system connects via a reinforced silicone elbow.
Both options are in the prototype stage and will undergo extensive testing for fitment, durability, and heat resistance before any public release.
Initial prototypes will be produced using high-temperature, carbon-fiber-reinforced polymers selected for under-hood environments.

Why consider upgrading the Air Intake Resonator?​

1) Reduced failure points

The factory intake system uses multiple components:
  • Intake resonator
  • Aluminum charge pipe
  • Intercooler hose
  • Multiple seals, joints, and clamps
Each connection is a potential failure point, especially Air Intake resonator and the Intercooler hose. Over time, heat cycling, oil contamination, and boost pressure degrade these parts. A simplified or consolidated design reduces the number of components that can fail unexpectedly.

2) Improved long-term reliability

Intake resonators and intercooler hoses are known wear items on higher-mileage vans. Failures often occur without warning and can leave the vehicle in limp mode or undrivable.
An upgraded solution is intended to:
  • Minimize age-related failures
  • Improve resistance to heat soak and oil exposure
  • Provide more consistent performance over time

3) Simplified intake layout

A single, purpose-built intake assembly:
  • Reduces complexity
  • Improves serviceability
  • Makes future repairs and inspections easier
This is especially valuable for owners who maintain their own vehicles or travel long distances.

4) Cost consolidation

Replacing multiple OEM components individually can be expensive. An upgraded intake solution can consolidate several parts into a single assembly, reducing overall replacement costs over the life of the vehicle.

5) Sound control

The OEM resonator is primarily an NVH component. When upgrading, the goal is not simply to remove it, but to:
  • Retain or re-engineer silencing where appropriate
  • Avoid unwanted whistling or resonance

6) Designed from service experience

The motivation behind the upgrade comes from repeated real-world service exposure — seeing the same components fail over time across different vehicles and usage patterns — and designing alternatives that better align with long-term ownership needs. Last year only our shop replaced over 200 Resonators and over 150 intercooler pipes.

Bottom line​

Upgrading the air intake resonator is less about performance gains and more about:
reducing failure points, improving durability, simplifying service, and offering owners an alternative that fits their use case.

Stay tuned !



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View attachment 397349
Hello do you have that file for that 3d print? Or was that hand made?
 

sprinter.motors

SPRINTERTECH
This is an issue for my 2011 OM642. I've replaced seals and readjusted several times and it is always a temporary fix. Perhaps a new attenuator would hold better but I ended up with a weird 3 hose clamp solution to keep the attenuator attached to the charge pipe going to the turbo and haven't had a problem in years. So have not replaced my attenuator.

Going to keep an eye on this. I may be interested once you finish development.



We are actively testing it. Did the first 20 miles on it today.

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ncjohn

Active member
OP has not been back to this thread but followed through in VS30 Talk: https://sprinter-source.com/forums/index.php?threads/145681/

Obviously for the OM642 so should work fine on NCV3s too. I was very interested until I saw the price point. He's having them 3D printed, so I am not questioning the price, just not worth it to me. They look factory nice and well made though.

The initial price is too much for me but if he can get costs down like he is anticipating I'm interested.
 

sprinter.motors

SPRINTERTECH
The initial price is too much for me but if he can get costs down like he is anticipating I'm interested.

As previously mentioned - part is 3D printed in small batches. It is the lowest price we were able to set.
If similar part would be welded/CNCed/3D printed in US - price tag wound be doubled.
 

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