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Having a free flow muffler will help improve fuel economy.
In most mufflers on the market the air flow is by having the exhaust air take two 180 degree turns u turns. This restricts the airflow and causes immense back pressure.
Having a straight through airflow muffler will improve mileage which is just like removing a muffler.
By removing a muffler there is reduction in weight and improvement in back pressure.
You may be cited for driving without a muffler, as it is required for noise control and pollution control.
What else can I help you with?
Location of oxygen sensor on 2005 Chevy cavalier?
on the muffler
Where is the catalytic converter located on a 2005 Nissan Frontier?
Under the vehicle, in the exhaust flow, before the muffler.
What is the EPA city and highway mileage estimate for the 2005 Chevrolet Malibu?
The EPA mileage estimate for the 2005 Chevrolet Malibu is 21 mpg in the city, 32 mpg on the highway.
What is the EPA city and highway mileage estimate for the 2005 Nissan Pathfiner?
The EPA mileage estimate for the 2005 Nissan Pathfinder is 14 mpg in the city, 21 mpg on the highway.
What is the EPA city and highway mileage estimate for the 2005 Acura MDX?
The EPA mileage estimate for the 2005 Acura MDX is 15 mpg in the city, 21 mpg on the highway.
What is the EPA city and highway mileage estimate for the 2005 Nissan Titan?
The EPA mileage estimate for the 2005 Nissan Titan is 13 mpg in the city, 17 mpg on the highway.
What is the EPA city and highway mileage estimate for the 2005 Chevrolet Suburban?
The EPA mileage estimate for the 2005 Chevrolet Suburban is 14 mpg in the city, 18 mpg on the highway.
What is the EPA city and highway mileage estimate for the 2005 Acura TSX?
The EPA mileage estimate for the 2005 Acura TSX is 19 mpg in the city, 27 mpg on the highway.
What is the EPA city and highway mileage estimate for the 2005 Audi A8?
The EPA mileage estimate for the 2005 Audi A8 is 16 mpg in the city, 22 mpg on the highway.
What is the EPA city and highway mileage estimate for the 2005 Ford Mustang?
The EPA mileage estimate for the 2005 Ford Mustang is 17 mpg in the city, 26 mpg on the highway.
What is the EPA city and highway mileage estimate for the 2005 Audi A6?
The EPA mileage estimate for the 2005 Audi A6 is 17 mpg in the city, 24 mpg on the highway.
What is the EPA city and highway mileage estimate for the 2005 Cadillac CTS?
The EPA mileage estimate for the 2005 Cadillac CTS is 16 mpg in the city, 25 mpg on the highway.
