basic questions bout mods

[flatmarsh]

can you all tell me what effect a cold air intake or exhaust system will have on gas mileage?

[94_AcCoRd_EX]

Air flow mods make your engine more efficient, giving you better gas mileage technically. If you floor it to hear the sound, etc. you'll be a little worse off. Gains/losses are marginal, so I really wouldn't worry about it when choosing whether to mod or not.

[ebpda9]

the exhaust and a cai won't give you too much of gains and won't affect your gas yardage too much, since you have the manifold as a bottle neck there.

[Maxvla]

you might get more fuel economy... except the fact you'll have the pedal to the metal playin with your newfound horsepower. which defeats the fuel savings. <shrug>