If i put an exhaust on my lancer without any other work to my car will it make it slower and take up more gas or what happens?

 

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i don't see why it would make it slower. you're opening up the exhaust, freeing the engines breathing. as long as you don't go too big with pipe you're fine. i wouldn't go larger than 2.25"

 

and yes the more you modify your engine, the ****tier your mpg becomes.

 

actually your gas mileage will not change dramatically unless you start messing around with the internals (Pistons, camshafts) or with the fuel rails or anything dealing with the fuel. Actually if you get a intake for your car whether its a short ram or cold air you will get better gas mileage because you are making a more efficient combustion in the engine. As far as an exhaust goes your car will just be louder and depending if you get just a muffler or a whole exhaust system you will gain some performance (only from the system). Also 2.25 is big enough a 2.5 would be the best bet with a 2.0l engine or bigger. you will be maximizing exhaust flow while maintaining good backpressure. To answer your questiong, no it will not affect the gas mileage.

 

i lost back pressure when i put my exhaust on first which yields loss of low end torque. Better route is to get an intake first and then an exhaust, or both at the same time. Nothing too dramatic, but i could def. notice a loss in low end power.

 

Well if you want more horsepower and MPG get a tornado air system forgot the website though.

 

backpressure is a misnomer.. go readup on the "why you need backpressure" sticked thread so you understand what I mean a bit more. Important for everyone to understand in the end.

Tornado air systems (assuming you are referring the the "electric supercharger") is nothing more than a dangerous horrible toy that will more likely than not do nothing and end up risking damage to your engine. So don't even think of putting such a horrible thing on your car!!!

Because your car is more freeflowing for exhaust etc you can in theory end up with slightly worse gas mileage due to a greater overall exchange of fuel etc... but in the long run.. you shouldn't see much of a diff. maybe 2 or 3 mpg overall.

Sorry if I sound curt.. I'm tired, and it's a long day and I'm hurrying so not being real PC... bear with me please.

Later.

Steve

 

Ahh the website is tornadoair.com

 

I wouldn't mess with that tornado thing with our MAS. Mitsiman from RPW has said repeatedly that our cars need a smooth flow of air for the ECU to accurately read the air flow and apply fuel as needed. The swirling action of the Tornado would seem to go against this theory and extra "confuse" the ECU.

WADAD

 

What he is saying it will mess with the karmen vortex counters.

 

Thank God it isn't one of the Tornado electric "superchargers." I have no idea if that would or wouldn't work on our car...

But I can explain the theory.. Essentially they are inducing a momentum based turbulence into the air to generate a swirling effect. By doing so they do act restriction (which is typically not what you want to do) but will enable you to get a more thorough mix of fuel and air going into the car, which is good/what you want. So by creating really "messy" air you get a better mix and the fuel will burn a bit better and get you better gas mileage... but that'd be that.