Mods and gas mileage?

**ABreeden** · 12-27-2011 04:53 PM

I have a 07 S-Line and I am looking into putting on a catback exhaust, test pipe, and software but before I do I was wondering how these things are going to affect my gas mileage? I tried searching but didn't seem to come across much...

Thanks

**ABreeden** · 12-31-2011 12:19 PM

Anybody?

**wootwoot** · 12-31-2011 05:40 PM

I have a 07 s-line with APR software and an HFC. I found that the mods give me better highway mpg but city mpg has dropped significantly. 90% of my driving is city and I get 20 mpg consistently.

**ABreeden** · 01-02-2012 12:44 PM

Originally Posted by wootwoot

I have a 07 s-line with APR software and an HFC. I found that the mods give me better highway mpg but city mpg has dropped significantly. 90% of my driving is city and I get 20 mpg consistently.

Thank you very much for the info...anyone else have any input?

**JohnBoyToo** · 01-07-2012 04:44 PM

mpg is more of a one to one with your driving style...
every turbo car/truck I've tuned got better mpg, not enough to pay for the tuning but enough to be noticeable
as long as you drive it somewhat sanely !
but who tunes to drive easy ?!? :)

and wootwoot is a perfect example - you will like the low end torque SO much you will use it every chance you get :)
(just like I do !)

maybe your mpg won't go up if you drive it like that, but your smiles/mile will :)

**4ringaddict** · 02-22-2012 11:47 AM

I have an 08 S-line A4 with a K04 turbo, Magnaflow Cat, Milltek exhaust and AFE air filter, lost maybe an mpg on highway, but like others have said, SO WORTH IT!