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none it reduces back pressure and most likely slows it down. but it will be loud and the stupid noise will make you think it is faster.

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Q: How much horse power does a flowmaster exhaust add on a 4cylinder car?
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How much horse power is added to by using a flowmaster muffler?

well you have to realize flowmaster mufflers are not straight through like magnaflows they have chambers. the super 44 is only a 2 chambered muffler so you willl get horse power but not as much as if you put a magnaflow. but flowmaster does sell a muffler called the outlaw series its just a straight through exhaust with no ceramic glass packing in it. so it will be louder and flow better than magnaflow. so your answer is if you want it loud but want max horse power go with the flowmaster outlaw series but if you just want a nice deep tone not to loud but still good flow than i would saw magnaflow


How much horse power flowmaster add to your car?

You can conservatively add between 8 and 15 horsepower on average.


Does after market exhaust help improve horse power?

yes it does.


How can you use your vehicle engine exhaust?

You can use it to power a turbo for the engine to gain horse power.


Is gapping your exhaust bad for your 2002 wrx?

No it increases your horse power and fuel


Did a flowmaster improve gas mileage?

High performance exhausts can have a small, yet statistically insignificant, impact on fuel efficiency. They tend to be installed for a differenct exhaust sound or improved power, not improved fuel mileage.


What is the average horse power for a 1986 Crown Victoria?

140hp with single exhaust; 150hp with dual exhaust (included with the trailer towing package).


Does magnaflow muffler increase horse power?

yes it actually increases horsepower and torque its not going to be a huge difference in power but it will increase it a little you will also get great sound out of it..in my opinion flowmaster has the better sound but magnaflow is better in the performance category


Will a v8 exhaust work on a v6?

no because of the different engine sizes and the ports wouldn't match up to the cylinders, you would loose horse power and have a restricting exhaust


What can i do to make my 2000 camaro ss faster?

new headers and exhaust can improve it by at least a hundred horse power


How much horse power will headers and a true dual exhaust add to a stock 307 olds?

10 to 20 percent


How much extra horse power does dual exhaust ad to a truck?

10HP to 20HP according to engine displacement and condition.