soo i just recently noticed that ive been getting better gas mileage. i got my whole exhuast done from the downpipe all the back and the jita and u know what guys it really does help out mpg

juz wanted 2 let ppl know...plus im bored lol

 

 

How much better?

 

Wait until you get the Cattman headers, and rid yourself of the restrictive stock manifolds and cats!

 

okk well i started with 15.7 stock, then as of 3 days ago im at 18.5 soo id say itz a big difference...nd i wanna get the headers but im not sure of what to do cuz i hear u have 2 do alotta work so that it wont throw a CEL

 

thanks for sharing!...

 

You started out at 15.7?? Either you have a lead foot or something else is wrong with your car. Even 18.5 is pretty low. It's pretty hard to get that bad of mileage in a maxima.

 

what he said....

 

I normally get 21.5 mixed driving and i'm 100% stock.

 

well i live in BX nd all i drive is in the city soo those numbers r prob rite, plus i like hearing my car, so i love 2 open the throttle a lil haha

 

Are you relying on the trip computer or are you calculating MPG by hand? (miles driven from full divided by gallons it takes to fill it back up) I know the trip computer in the 5.5gen is usually off a little, but I'm not sure about the 6gen.

 

my computer says its 22.3 when i calculate its 21.5 on average. somtimes 20

 

You must be talking about the manual maximas and I agree. But automatics are a whole different story..

 

Can't be THAT different. I mean really.

 

lol at thinking mods help MPG

stock and i get no lower than 20. cruising on hwy i get 30

 

What set up did you use? What website did you order your exhaust from, how much, what size, etc.

 

How do you guys get such good gas mileage???? Im lower than 15 MPG all day everyday for the past 2 years i owned my 04 SE.

 

lol at you thinking the Cattman headers don't help.

 

I'm 100% stocked too and I only get 15.8 mpg. I definitely need better mpg I drive 30 miles one way to work.

 

My computer shows 22.5mpg. I am on the interstate about half the time and in downtown Columbia, SC the other half.

 

Stock here... I get 18mpg. Mostly commute on slow highways (thanks to heavy traffic), and city driving.

 

MPG is mostly about how you drive your car. I love to feel the throttle aswell but if MPG is what you want, rent a prius and learn how to drive to get good MPG. Personally I am somewhere in the middle at about 24.3 on average. If you are flooring it at every red light you are getting the milege you deserve.

 

prove me wrong and i am happy. i know for certain intake and exhaust do nothing. with the computers everything is recalculated back to OEM specs. now if you chip then that's different.

If you reset your MPG calc. every fillup you will be more accurate. I do the math each fillup and rather close. I never get less than 20. I also know how to drive i still reline on highway at times, but stop and go is where u lose it if you are always accelerating and braking hard.

 

I drove 500+ miles on the highway the other day and got 30+ MPG for the whole trip.

It could only make sense that certain mods make some difference. Less suffocating for the system. MY problem is the when I do a mod, I tend to want to use it... so it ends up worse MPG.

 

I live in New York and get 18 mpg on average. Even better when I switch on the economy display and watch my foot. 100% stock thus far. Thinking of getting 20" enkei performance rims (LSF) soon.

 

I get 18 if I'm lucky. Mostly city driving.

 

I never rely on the computer for actual MPG. I do the math every week.

Before I installed the Cattman headers, I'd be lucky to see 20mpg on any given week.

Now, a tank is getting me much farther, and I have to really try hard to get less than 24mpg.

Mixed highway/city driving... 75%ish city.