Raise

iTrader: (31)

bone stock 98 z28 a4 right now. got a lid on the way and am trying to pick a good catback. will these two mods help gas mileage at all?? im getting around 18-19 city/hwy right now, which is pretty good for an a4 i guess, but id like it to be a lil better. will the lid & catback help me out at all??

ARCTICWHITE98Z28

iTrader: (1)

I have a lid and a cutout and a 98 A4 and get around 22 MPG city/hwy. And I do have a very heavy foot.

davered00ss

iTrader: (4)

I don't think so.

equandt

iTrader: (2)

A good tune and some synthetic oils in the drive line will help the most.

A lid and catback won't be much help.

davered00ss

iTrader: (4)

My gas milage went up 1mpg with my Kooks headers.

davered00ss

iTrader: (4)

Then down 2mpg with my 4.10 gears.

BrandonDrecksage

iTrader: (1)

depending on how you drive. when my car was stock..i got around 24mpg between city and highway..probably 75% highway. after catback and lid...its around 27 mpg.

1 last 1

iTrader: (1)

As long as you keep your foot out of it, your gas mileage will improve somewhat.

Speed Density

iTrader: (38)

Get a cutout not a Catback. I got the KN FIPK at a Catback, still 15, then i got a cutout and it went to 16

Cuban Missile

what about all this talk of A/C being more fuel efficient at 55+ mph? Ive been experimenting with that lately but Im not sure yet

lgobraves

iTrader: (14)

I wasn't able to tell a difference when I put them on. I get about 15 in town and 30 on the highway.(M6)
We'll see if the headers going on this weekend will help