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Depending how you drive... If you drive like a banshee (ME!) then no your going to get 11 MPG but if your good on the throttle and don't floor it at a stop light then yes maybe a couple MPG's

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Q: Does a cat back muffler and performance intake together improve mileage?
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Related questions

Does a muffler give a car better gas mileage?

A free flow muffler can improve mileage but by not by much. It would take a long time to recoup the cost of a new muffler.


Which mufflers improve gas mileage?

Generally speaking, mufflers don't improve gas mileage. They reduce noise by disturbing or smoothing exhaust flow. That said, an excessively restrictive muffler can increase exhaust backpressure causing the engine to labour and decrease efficiency. In this case, replacing the muffler with a less restrictive unit can improve gas mileage, but the same can be achieved by eliminating the muffler entirely. In some (uncommon) cases it is possible for a muffler that flows too freely or is missing to cause the engine controller to operate in a less than optimal mode. In this case, an original type muffler can help by restoring the state of tune. The same effect can be achieved using a baffle or simply denting the exhaust pipe appropriately.


Does removing a muffler help fuel mileage in a cummons 2005?

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.


Will a hole in a muffler affect gas mileage?

It can, and usually it will make it worse.


How do you make the exhaust sound deeper?

buy a performance muffler


What will a pluged muffer do an engine?

Restrict air flow, and inhibit performance. If it is plugged bad enough the engine will not start. A restricted muffler will cause an engine to loose power and run poorly, with bad fuel mileage.


How do you empty your muffler on 08 Roketa Scooter to make it louder performance?

Well first the two words "performance" and "louder" do not go together. If you make it louder the way you are asking for directions i.e. by removing the baffles. You will lose around 40% - 50% of your performance or power. These bikes rely on compression of the exhaust gasses for about half of the h.p. Try removing the muffler completely and see how it performs, and as per the owner's manual modifying the muffler or running without one, will void your warranty.


Will a bad muffler effect the motors performance?

yes, a muffler is designed along with exahust pipe to create proper amount of back pressure


Is it bad to ride a dirt bike with no muffler?

It is not bad to run it without a muffler with a straight pipe. But remember the louder it is doesn't necessarily mean the better the performance.


What is a good performance muffler for my 75 olds delta 88?

Flow master 40


Muffler Replacement?

form_title=Muffler Replacement form_header=Help restore exhaust flow, horsepower and performance lost due to a damaged or malfunctioning muffler. What is the year, make and model of your vehicle?=_ Have you ever had your muffler replaced before?= () Yes () No () Not Sure What prior work have you had done on your car's muffler and exhaust system?=_ What are your hearing or seeing in the car that is abnormal?=_


How do you improve the performance on a 1996 Honda civic lx?

try larger exhaust pipe w/ perf. muffler, after-mkt. intake sys. high perf. computer chips, TURBO'S! nitrus, the list can go on as far as wallet will let you!!!