im putting in a stillen y soon.. worried bout milage..i heard somewhere that if you still drive the same after a y milage should actually go up a bit..anyone with a Y find this to be true? under normal driving condotions, not wot all the tiem..thanks

 

hmm im curious about this too

 

ttt

 

i used to get around 270-280 on a full tank of 93.

after the y-pipe install, i am now getting over 300. i am quite surprised and happy about this.

 

so better milage..awesome..just what i wanted to hear..

 

i've heard a lot of people say they get worse mileage...because when you have that much more power above 3500rpm you tend to drive it a little harder

 

oh my mistake i didn't read your message to well, as far as mileage from just normal driving conditions.

 

yeah..i know for the first few weeks i wont be getting better milage.gonna have some fun mashing all the time. but after the whole thrill of jsut getting a ypipe calms down.i want to know if i can still expect my normal 330 a tank..

 

I get better mileage as long as I don't push it. If I shift at 3000 rpm, I get great mileage.

 

i got better mpg. 380 all city and around 430 all highway. the 380 is from last 2 weeks when my tranny was messed up and i drove like an elderly person.

 

come on...if gasses are able to escape easier, letting the engine "breath" easier...driven the same as before..you will have better gas milage. Whereas you will like most others drive the car a little harder, more often...more throttle = lower gas milage. Intake and exhaust mods help increase efficiency...it's the human foot on the throttle that hurts efficiency

 

yea, i didnt really notice since i NEVER fill my car full, always have less than a half tank, but i do know before the Y-pipe i averaged 24mpg under pretty hard driving, w/ combined city/highway, mostly city..



Eric