Manta 3in Exhaust - Holden Colorado RG 2.8L Duramax Turbo Diesel DPF 2016-2020

The DPF-era RG Colorado runs the 2.8L Duramax behind a filter, and the factory system behind that filter is where most of the restriction sits. Start with the DPF back option and nothing about the emissions equipment changes - the ute stays road legal, the warranty position is unchanged, and it is the cheapest real gain available to one of these. If the build has gone further, the turbo back systems are there as well.

Choosing your system

• DPF Back — from the diesel particulate filter back. The factory DPF and all the emissions gear stay untouched, so the vehicle remains road legal and your warranty position is unchanged.
• Turbo Back with Cats — everything behind the turbo outlet, with a catalytic converter retained. The factory pipework right off the turbo is the biggest single restriction on a turbo diesel, so this is the change you feel.
• Turbo Back without Cats — everything behind the turbo with no catalytic converter. Off-road and competition use only.

The options without a catalytic converter are sold for off-road and competition use. Removing emissions equipment from a road-registered vehicle is not legal in any Australian state. If the vehicle is registered and driven on the road, choose an option that retains the cat or the DPF.

Aluminised or stainless

• Aluminised Steel — Manta's standard. Aluminium-silicon coated steel, pressed and mandrel-bent the same as the stainless, and it will give you years of service in normal conditions. Best value of the two.
• Stainless Steel — 409 stainless. Worth the jump if you live near the coast, spend time in mud and dust, or do river crossings. It will comfortably outlast the vehicle.

How loud do you want it

• Quiet — the most muffling Manta offers. Deeper and cleaner than factory, but still civil on a long highway run.
• Medium — a resonator in place of one of the mufflers. More note when you get into it, without the drone that ruins a road trip.
• Loud — straight through. The most aggressive of the three, and you will hear it at cruise.

Fitment

Holden Colorado RG, 2.8L Duramax, 2016 to 2020. Bolts to the factory mounting points and uses the standard hangers — no cutting or welding.

3in pipe throughout, and every bend is mandrel-formed. A mandrel bend holds its full diameter around the corner instead of crushing down the way press-bent tube does, which is the whole point of fitting a bigger system in the first place.

Manufactured in Australia by Manta Performance Exhausts. Ships direct from Manta's warehouse on a flat $149 freight rate anywhere in Australia. If you are not certain which system suits your build, give us a call before you order.