Just installed a custom mid pipe with a 30in. resonator and the Tanabe Concept G. I was wondering how it will impact me MPG.

 

i wanna know the same....does adding the exhaust will lose MPG
oh i will be getting HKS Hi- Power Exahaust it that helps!!



thanks

 

what milage were you gettign before........jsut normal driving........does not matter if you punch it at the stop lights.........my tC I get about 24 MPG.........some highway........mostly city........and drive a bit hard at times.........

added a SRI intake and milage stayed the same........added TRD exhaust and milage stayed the same.........header on the way this week.......I figure milage to stay the same........

Any car I ever put a full exhaust in from intake to muffler never ran worse or got less MPG.

 

the harder u drive, you will lose a bit of mpg

 

wont change anything

 

haha im gonna say yes it will cause you are gonna want to drive faster. just dont be a led foot and you will be fine!

 

you will def lose gas mileage from wanting to drive faster with the exhaust tone

i know this from having your setup :]

 

btw, scientifically, i think it does decrease the MPG. (my guess)

 

seeing as it is only free-ing up backpressure and perhaps adding some hp depending on the setup... the only thing that would cause a decrease in mpg would be an exhuast tone driven lead foot

 

If the new exhaust was significantly heavier than your previous one, it might hurt your mpg. Otherwise, if you drive in the same manner that you were driving before, it shouldn't change. Oh, and post pics of the new exhaust.

 

research guys..

 

i heard that if you take out a cat you will loose some MPG.

 

exhaust increases airflow which would increase fuel intake

 

^^yes but not significantly with this car (unless you build the engine up and/or get boosted) ... dynos have shown only a 5-6whp gain replacing stock exhaust with a straight-through system ... I carefully document my mileage and installing I/H/E has not affected my mpg's a bit ... as long as you don't develop a lead foot or strap a cargo bin to your roof your mileage should stay the same.

 

exhaust isnt gonna do anything to you mpg. the only reason it would is because you wanna drive harder.

 

I actually just did I test I drove my car on the interstate through a tank of gas with an aftermarket header, s-pipe, axleback, and short ram intake and got 31 mpg on the interstate. I then took all of that stuff off and drove the same piece of interstate for a whole tank of gas and got 29 mpg so I say the aftermarket setup really helps

 

Your mpg's will vary from tank to tank even when your setup stays the same. The next fill-up after an unusually low 25.63mpg week I logged 31.06mpg (last November), only change I noted was the 2nd week was warmer.

You really need to run 4-5 tankfuls with the same setup & average them out to see if there's a trend.

 

I consistently average 31 mpg on the highway with the mods so I was happy,but all of that came off and now I'm getting ready to put on a turbo so screw the gas mileage.

 

nope but it's less restricting then stock so it may even improve MPG

 

how the heck do u guys get 25-30 mpg!

i only get like 20