Manta 3in Turbo Back Exhaust - Holden Colorado RG 2.8L Duramax Turbo Diesel No DPF 2012-2016

This is the pre-DPF RG, built from June 2012 to August 2016, which makes a 3in turbo back a straightforward job. The 2.8L Duramax has plenty to give once it can breathe, and opening up the pipework right off the turbo is where that starts. Keep the cat and stay road legal, or go without for off-road use.

Choosing your system

• 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.
• Loud — straight through. The most aggressive of the three, and you will hear it at cruise.
• 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.

Fitment

Holden Colorado RG, 2.8L Duramax, 2012 to 2016. 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.