Mustang V8 models will cop a power decrease from 2022 in the US - UPDATE

UPDATE, October 13: A spokesperson from Ford Australia has confirmed to MOTOR that while the Mustang GT and Mach 1 V8s will see a power decrease in the US, Australian-delivered models will remain unchanged.

"Changes were made to US Market Mustang GT models to meet more stringent LEV III (Low Emission Vehicle) regulatory emissions requirements that resulted in a horsepower and torque reduction for the 5.0-litre V-8 engine," said the Ford spokesperson.

The spokesperson also went on to say "Australian-delivered Mustangs will not be affected."

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The story to here

October 12: The Ford Mustang V8 range could be subject to a power decrease from 2022, after a report in the United States stated the output from the bent-eight could change to meet tightening US emissions standards.

According to Ford Authority, both V8 Mustang GT and Mach 1 could end up with detuned versions of the aspirated quad cam 5.0-litre Coyote V8 currently powering the pony car.

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If implemented in Australian models, both versions will reportedly see a drop of 10hp (7.5kW) and 10ft/lbs (14Nm) of torque from their current peak power figures, regardless of automatic or manual drivelines.

For the GT, that means a power decrease from 460hp to 450hp (343kW to 335kW), while the Mach 1 will drop from 480hp to 470hp (357kW to 350kW) for US models.

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The exact details of the ‘slight alterations’ are yet to be specified, however the supercharged 5.2-litre Mustang GT500 (which is not available in Australia) will allegedly stay unchanged due to it being a low-volume speciality vehicle.

It’s also unclear if those changes will affect Australian-delivered versions of the GT and Mach 1 Mustang, which currently develop 339kW (GT) and 345kW (Mach 1) from their Coyote V8s as delivered here in Australia.

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The S550 Mustang has enjoyed solid sales in Australia since it was first introduced in 2015, with over 20,000 examples sold since then with several factory-backed special editions in between, such as the Bullitt, R Spec and SM17.

MOTOR has contacted Ford Australia for a statement regarding power outputs for future V8 Mustangs and is awaiting a response.