DPS | High Flow 6.7 Exhaust Manifold | Best 6.7 Cummins Exhaust Manifold Upgrade | T4
$1,380.00
or 4 interest-free payments of $345.00 with Afterpay on orders up to $2,000Zip and humm are available over the phone: (07) 5619 7869
T-4 FLANGE WILL NOT FIT FACTORY TURBO! This manifold flows much better than the factory Cummins Manifold. Our manifold lowers EGTs on the rear cylinders by 200 degrees.
Fast AU-Wide Shipping
Returns within 30 days
12 month warranty
Will it fit your vehicle?
| Make | Model | Series | Years | Engine |
|---|---|---|---|---|
| — | — | — | — | ISB 6.7L |
A dash means the listing does not narrow it down that far (for example no build dates are listed). Check with us if your vehicle was built near a model change.
Fitment listings are a guide. Not sure? Send us your rego or VIN and our team will check the part for your vehicle, before or after you order.
Description
DPS | High Flow 6.7 Exhaust Manifold | Best 6.7 Cummins Exhaust Manifold Upgrade | T4
The Diesel Power Source best 6.7 Cummins Exhaust Manifold for the Dodge Cummins is the best 6.7 Cummins exhaust manifold upgrade, because it helps turbos spool up sooner with less exhaust back pressure.
T-4 FLANGE WILL NOT FIT FACTORY TURBO!
This manifold flows much better than the factory Cummins Manifold. Our manifold lowers EGTs on the rear cylinders by 200 degrees.
DPS 6.7 Exhaust Manifold Features Include:
Flow Charisteristics
-
- Computational Fluid Dynamic design (we know how it flows)
- Improved Exhaust Flow
- Flows 33% more than the stock manifold
- Lowers exhaust drive pressure / back-pressure
Fitment
- T4 Flange size (will not fit factory turbo)
- Fits T4 S400 Turbos
- Puts Turbos in factory location
- Includes 6 new gaskets, and two bolts.
- Drilled/Tapped ports, two sizes, for pyrometer and pressure fitting.
- Made with high nickel content for excellent heat performance.
- Black High Temperature Coating
- Comes pressed together, pressure tested and ready to install
- Has EGR / Emissions ports
- 2-Piece Design won’t crack like single piece manifolds
Fluid Dynamic Testing Matters:
DPS 6.7 exhaust manifold offers improved exhaust velocity competitors, because it’s not just port size, it’s balance, size and design of ports which affect this.
We have the best 6.7 Cummins exhaust manifolds because our CFD testing allows us to actually trace the air molecules through the system so we know how.
2-Piece Design Matters:
DPS 2-Piece Manifold can handle extreme heat without cracking, because of both the materials and 2-piece design.
We’ve designed this manifold based on Computational Fluid Dynamic (CFD) Testing, which will results in quicker turbo spool-up, and increases exhaust gas efficiency.
Stock manifolds are known to shrink significantly, causing manifold-cracking, gasket problems, and exhaust flow problems created by exhaust port misalignment.
Our 2 Piece Manifold, on the other hand, allows manifold to expand and contract with heat, eliminating warping and cracking to the manifold, eliminating the dreaded manifold shrinkage.
For T4 S400 turbo owners wanting to keep your turbo in the factory location DPS 6.7 Cummins exhaust manifold upgrade is the best flowing of all aftermarket manifolds this is one of the best best 6.7 cummins upgrades.
Diesel Power Source 6.7 exhaust manifold has the EGR ports, for both emissions compatibility or for external wastegate setups.
The best 6.7 Cummins aftermarket exhaust manifold, spools turbo faster and flows more air than a Steed speed 6.7 cummins manifold.
If you’re looking for 6.7 cummins aftermarket exhaust manifold for an S300 or S400 turbo, this is a perfect choice for the best 6.7 cummins upgrades.
Don’t make the mistake of a single piece stainless exhaust manifold. Stainless steel manifolds move (expand and contract), 2 times more than our manifold. So while the stainless manifold may not break, your head, bolts and gasket will.
Flows exhaust like a 6.7 Cummins header.
Shipped Australia-Wide
- Dispatched from within Australia with tracking.
- Same-day dispatch on in-stock orders placed before 11am AEST, Monday–Friday.
- Shipping is calculated at checkout based on size, weight and your delivery address.
- Delivery usually takes 2–10 business days after dispatch, depending on your location.
- Need your tracking number? Once your order has shipped, email sales@willysworkshop.com.au with your order number and we’ll send you the carrier and tracking details.
Freight question? Call us on (07) 5619 7869.
DPS | High Flow 6.7 Exhaust Manifold | Best 6.7 Cummins Exhaust Manifold Upgrade | T4 The Diesel Power Source best 6.7 Cummins Exhaust Manifold for the Dodge Cummins is the best 6.7 Cummins exhaust manifold upgrade, because it helps turbos spool up sooner with less exhaust back pressure.
Additional information
| Weight | 15 kg |
|---|---|
| Dimensions | 120 × 30 × 25 cm |
Warranty: 12 months from Willys Workshop
Sold and warranted by Willys Workshop. Parts carry our 12-month warranty against defects, from the date of purchase or installation (whichever is later), subject to any manufacturer terms and fair wear and tear (Terms & Conditions, clause 7.1(b)). This is in addition to your rights under the Australian Consumer Law, which cannot be excluded.
- 30-day change-of-mind returns on eligible items: unused, uninstalled and in the original packaging, with a Return Authorisation from us first. A 15% restocking fee applies and return postage is at your cost.
- Wrong fit: if a part covered by our Fitment Guarantee doesn’t fit, we pay the return freight both ways and there’s no restocking fee.
- Special-order or imported-to-order items, electrical parts, ECUs and tuners once registered, connected or flashed, parts that have been fitted or modified, and clearance items can’t be returned for change of mind. Your rights for faulty goods still apply.
- Refunds are made to your original payment method within 14 business days of us receiving and inspecting the return.
Full details: Returns & Refund Policy and Terms & Conditions.
Warranty claims are coordinated through Willys Workshop. Email sales@willysworkshop.com.au or call Warana (07) 5619 7869 / Oxley (07) 3377 3421 with your order number and a description of the issue.








