STi stage 2 gas mileage?

Discussion in 'Modifications & DIY how-to' started by nik_05STi, Sep 2, 2009.

  1. nik_05STi

    nik_05STi Member

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    I have Cobb stage 2 re-map, K&N intake, Helix dp, & SPT full exhaust. Its not tuned yet. I plan on getting it tuned at Top Speed. Does anyone know the optimum gas mileage I can achieve after a tune???
     
    #1 nik_05STi, Sep 2, 2009
  2. Alex

    Alex Community Founder
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    Well let's see, I have catless godspeed dp paired with cobb catback. Stock fuel pump, stock injectors. Upgraded tmic, with drop in filter and a ported wg on the stock vf39. Tuned by SS (the man) at sogpd (good ol days).



    On any given day I will experience between 4 and 27 mpg :)
     
    #2 Alex, Sep 3, 2009
    Last edited by a moderator: Sep 3, 2009
  3. wrxin8or

    wrxin8or Mullitt
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    Its funny cause its true
     
    #3 wrxin8or, Sep 3, 2009
  4. wagunz_pwn

    wagunz_pwn Active Member

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    20 ish.
     
    #4 wagunz_pwn, Sep 3, 2009
  5. cannarella

    cannarella Member

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    I get around 24
     
    #5 cannarella, Sep 3, 2009
  6. JJang12

    JJang12 Active Member

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    i don't know how you guys can get above 20. I have stg 1 set up (tuned by SS), but I barely achieve 17-18 mpg. that's with about 75% highway driving tho
     
    #6 JJang12, Sep 3, 2009
  7. Jake

    Jake Active Member

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    AVCS in an STi SHOULD theoretically net better gas mileage in a stage 2 tune vs. a non-AVCS 2.0l wrx. i know in my 02 i was getting btwn 16-18 in the city and 22-24 on the hwy. once got 28 following a big truck back from florida, i was sooo excited!
     
    #7 Jake, Sep 3, 2009
  8. Ben@TTR

    Ben@TTR Member

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    when i first got the 362 on the car. i got 90 miles to a tank heading to Mikes lol (around 6mpg)
     
    #8 Ben@TTR, Sep 3, 2009
  9. SonicBoom

    SonicBoom Active Member

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    Also 20 ish...
     
    #9 SonicBoom, Sep 3, 2009
  10. Trey

    Trey Active Member

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    15-19...I'm feeling better now. I thought it was just me. :p
     
    #10 Trey, Sep 3, 2009
  11. gtaccord

    gtaccord Member

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    On stage 1 cobb map with cobb catback I got around 24.5 mpg with my cruise set on 80 on the highway. I will know after this weekend what the stage 2 map gets me.
     
    #11 gtaccord, Sep 3, 2009
  12. schneid

    schneid Member

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    my 330i gets 26 city. totally irrelevant but felt like boasting :)
     
    #12 schneid, Sep 4, 2009
  13. Alex

    Alex Community Founder
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    :slap:

    :hs:
     
    #13 Alex, Sep 4, 2009
  14. Eco Auto Clean

    Eco Auto Clean Active Member

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    stage 2 legacy..i get 20-24...
     
    #14 Eco Auto Clean, Sep 4, 2009
  15. Jake

    Jake Active Member

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    wait for doug to post up his 450whp numbers and we will all cry.....
     
    #15 Jake, Sep 4, 2009
  16. jesus888

    jesus888 Member

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    75% highway, and most the time I drink like a granny. 22-23, Stage 2 Protune by SS. Just a catted downpipe + the tune...
     
    #16 jesus888, Sep 4, 2009
  17. schneid

    schneid Member

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    dont worry, I would trade a few mpg for the kick of my ol wrx :unamused:
     
    #17 schneid, Sep 14, 2009
  18. gtaccord

    gtaccord Member

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    Just confirmed my mileage with stage 2 (cobb ots map).

    25.8 mpg over 342 miles going home (to VA)
    26.4 mpg over 357 miles coming home

    This is with an average speed of around 70 mph with the cruise set at 80 as much as possible.

    I always read that you should pick up mileage with stage 2 but I never expected it.
     
    #18 gtaccord, Sep 14, 2009
  19. Alex

    Alex Community Founder
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    ^ that's great! My car runs pig rich to acheive something like that consistently haha.
     
    #19 Alex, Sep 14, 2009
  20. gtaccord

    gtaccord Member

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    I'll keep an eye on it and see if it is consistent.

    I should also add that I kept my foot out of it and I never saw over 3500 rpm for the whole trip. No embarrassing the Cavalier trying to race me, no fun on the ramps :unamused:I am not sure if the extra mileage is worth it.
     
    #20 gtaccord, Sep 14, 2009
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