• Denso RG Colorado injectors for Holden 2.8L Duramax engine, shown in a close-up image of the fuel injectors.
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Denso

RG Colorado Denso +30 Injectors - RG DURAMAX +30 Injector Set - 2.8L

RG Colorado Denso +30 Injectors - RG DURAMAX +30 Injector Set - 2.8L

$3,469.00 AUD
$3,469.00 AUD
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Warranty on every part Manufacturing defects covered, in addition to your Australian Consumer Law rights. Faulty? Stop driving and text us first. 30-day returns Unfitted, unused, in original packaging. Approval required. Return freight is on you. Conditions and exclusions apply, see our returns policy.
RG Colorado Denso +30 Injectors: RG Duramax +30 Injector Set, 2.8L

+30% Fuel Capacity | Genuine Denso Bodies | Set of 4 | ECU Tune Required

+30% Performance InjectorsGenuine Denso BodiesECU Tune RequiredSeat Washers IncludedAfterpay, Humm, Klarna, ZipFree Express Shipping AU

Tuned, towing heavy or running more boost than a 2.8L RG Colorado left the factory with? Stock injectors run out of fuel. This set is built on genuine Denso injector bodies with the nozzles modified to deliver approximately 30% more fuel capacity, so a tuner has the headroom to chase higher power and torque targets safely.

Four modified +30% injectors and new copper seat washers, ready for professional installation. ECU tuning is mandatory before driving under load. Just need a stock replacement? Standard RG Colorado Denso injectors are here.

What Is Included
  • 4 x +30% modified injectors (genuine Denso bodies)
  • 4 x New injector seat washers (copper)
  • Free express shipping Australia-wide
  • Pay later options: Afterpay, Humm, Klarna, Zip
Who These Are For

Vehicles running increased boost, ECU tuning or heavy towing loads. Compared to standard injectors they deliver approximately 30% more fuel capacity to support higher power and torque targets with supporting mods and appropriate tuning. Best suited to vehicles with upgraded turbos and supporting mods like intercoolers, airboxes and exhausts, tuned vehicles, towing applications and drivers after stronger torque delivery.

Base Injector Part Numbers
  • Denso: 295050-0960
  • GM / Holden: 12640381
Vehicle Fitment

Holden RG Colorado 2.8L Duramax, approx. 10/2013 to 2019.

Fitment note: vehicle build dates may overlap. VIN confirmation is strongly recommended before ordering.
Installation and Tuning Notes
  • ECU tuning is mandatory before driving under load.
  • Professional installation strongly recommended.
  • Injectors must be coded after installation.
  • Always fit new seat washers and clean the injector bores.
  • Post-install rail pressure and leak-back checks advised.
Modified and oversized injector disclosure: where a modified or +size injector is described as genuine, the term genuine refers only to the injector body, not the nozzle. The original nozzle has been replaced or modified to achieve the specified increased flow rate and is no longer the original OEM component. The injector body remains genuine, but the nozzle and overall flow characteristics differ from original OEM specifications.
Shipping and Payment
  • Free express shipping Australia-wide.
  • Afterpay, Humm, Klarna and Zip available at checkout.
  • Returns and warranty are covered by our refund policy.
Frequently Asked Questions

Do +30% injectors require tuning?
Yes. An ECU remap is required. Running +30% injectors without tuning can cause over-fuelling and engine damage.

Are these genuine Denso injectors?
They are based on genuine Denso injector bodies. The nozzle has been modified to increase fuel flow.

Will these fit my 2016 Colorado?
They suit most RG Colorado 2.8L Duramax models from late 2013 to 2019. VIN confirmation is recommended.

What are +30% injectors best suited for?
Vehicles with upgraded turbos and supporting mods like intercoolers, airboxes and exhausts, as well as tuned vehicles, increased boost setups, towing applications and drivers seeking stronger torque delivery.

+30% Fuel. Genuine Denso Bodies. Tune It Right.

Four modified injectors and seat washers for the RG Duramax, shipped express for free Australia-wide.

Common Rail Cowboys is not affiliated with Holden, General Motors or Denso. Vehicle and brand names are used for fitment identification only. These are modified performance injectors: ECU tuning is required before driving under load, and installation should be carried out by a competent person following factory procedures. Fitment confirmation is the buyer's responsibility. Modifications of this kind may affect vehicle warranty and compliance.

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