Question about aftermarket exhausts and fuel efficiency?

Question

If i install an aftermarket exhaust replacing the stock exhaust, could this in any way negatively effect fuel mileage or raise the required octane for my vehicle?

Answer 1

It wouldn't change the required octane, but it could effect your fuel mileage, because most likely you'll end up with more power. More power = more fuel being burned.

Answer 2

If you're staying with single exhaust, the affect would be minimal. However, if you convert to a true dual exhaust, your fuel economy would go down slightly but your horsepower would go up and your car would sound and look cooler then it is now. And you could still use the same octane of gas.

Answer 3

decelerate develop up slowly. decelerate slowly. If a handbook transmission, short shift and get into the utmost kit as quickly as possible without lugging the engine. shop tires properly inflated. verify them a minimum of the different fill-up Headers and exhaust supply you some minor horse power advantageous properties, yet no longer plenty extra gasoline financial device. you spot even much less advantageous properties on a somewhat inventory motor like yours. chilly air intakes are eye candy and could no longer supply you any important advantageous properties. A waste of money. All you like are some stable platinum spark plugs. comparable with the plug wires. Get stable wires, yet you do no longer want the terrific. On a somewhat inventory motor like yours, you attain a factor the place you will spend too plenty money on ignition factors and notice not extra advantageous properties. With a inventory motor. except the ignition coils is going undesirable, shop with a inventory coil, it somewhat is plenty warm adequate. shop with stable, yet no longer the terrific plug wires, and platinum plugs and much less. many of the flaws you point out won't supply you adequate advantageous properties to even pay for themselves.