Engine Modifications
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Below you will find a list of discussions in the Engine Modifications forums at the ClubWRX Forum - Subaru Impreza WRX and STi Community and Forums. The Engine Modifications forum Flat-fours and turbochargers are what set the WRX apart from the rest. Talk about them and the latest aftermarket parts here.

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  1. Engine Performance Discussion Specific to Higher Altitudes

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    Forum Statistics:

    • Threads: 48
    • Posts: 681

    Last Post:

    TECH: High altitude and octane Go to last post

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    11-06-2014, 06:28 PM

  1. Sticky Thread Sticky: Engine Performance FAQ [[[READ ME]]]

    Started by ebr0t, 09-28-2004 07:59 PM
    • Replies: 1
    • Views: 89,729
    09-29-2004, 10:25 PM Go to last post
  2. Sticky Thread Sticky: Subaru Catch All TSB Regarding Modding

    Started by 302@12psi, 08-12-2007 08:43 AM
    • Replies: 8
    • Views: 13,751
    08-12-2007, 05:41 PM Go to last post
  3. Post Sticky Thread Sticky: I want 400WHP!!!1!juan!

    Started by TheJ, 09-27-2009 07:51 AM
    • Replies: 0
    • Views: 21,614
    09-27-2009, 07:51 AM Go to last post
  4. Sticky Thread Sticky: SPT has released the new CBE's for 08 WRX 5dr & 4dr.

    Started by Weasel 555, 04-02-2008 06:35 AM
    6 Pages
    1 2 3 4 5 ... 6
    • Replies: 85
    • Views: 27,000
    01-02-2011, 03:58 PM Go to last post
  5. Sticky Thread Moved: BIG Intake Manifold FAQ!

    Started by zax, 11-20-2012 02:51 PM
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  6. Sticky Thread Sticky: The BIG Intake Manifold/TGV/Phenolic Spacer FAQ!

    Started by zax, 11-20-2012 02:57 PM
    • Replies: 0
    • Views: 4,404
    zax
    11-20-2012, 02:57 PM Go to last post
  7. Sticky Thread Sticky: Intake FAQ

    Started by EJ257, 04-09-2013 10:07 PM
    • Replies: 0
    • Views: 6,592
    04-09-2013, 10:07 PM Go to last post
  8. Sticky Thread Sticky: Blowoff Valve (BOV) FAQ

    Started by Sinister, 07-11-2013 11:55 PM
    • Replies: 2
    • Views: 7,919
    zax
    07-19-2013, 09:13 AM Go to last post
  9. Sticky Thread Sticky: Water/Methanol Injection FAQ

    Started by EJ257, 04-06-2010 09:04 AM
    2 Pages
    1 2
    • Replies: 29
    • Views: 34,437
    01-22-2014, 07:56 PM Go to last post
  10. Sticky Thread Sticky: Exhaust Video/Sound Clips

    Started by TurnWRX, 03-29-2004 11:37 PM
    38 Pages
    1 2 3 4 5 ... 38
    • Replies: 555
    • Views: 353,283
    06-27-2014, 02:38 PM Go to last post
  11. Sticky Thread Sticky: First Modifications - what to do and not to do

    Started by mycologist, 01-25-2010 09:05 PM
    14 Pages
    1 2 3 4 5 ... 14
    • Replies: 197
    • Views: 135,699
    07-20-2014, 07:02 AM Go to last post
  12. Sticky Thread Sticky: WARNING FOR BUYING CATTED DOWNPIPES!!!

    Started by Sinister, 10-27-2010 12:54 PM
    7 Pages
    1 2 3 4 5 ... 7
    • Replies: 93
    • Views: 44,001
    12-09-2014, 04:43 PM Go to last post
  13. Sticky Thread Sticky: Fuel System 101 FAQ

    Started by adam@kronosperformance, 06-30-2011 12:16 PM
    • Replies: 7
    • Views: 13,591
    01-10-2015, 10:47 AM Go to last post
  14. Sticky Thread Sticky: Exhaust FAQ

    Started by EJ257, 03-30-2010 04:30 PM
    10 Pages
    1 2 3 4 5 ... 10
    • Replies: 135
    • Views: 53,402
    01-15-2015, 10:17 AM Go to last post
  15. Sticky Thread Sticky: $5 and 5 minutes to a better running car :)

    Started by Big Sky WRX, 05-06-2006 04:02 PM
    9 Pages
    1 2 3 4 5 ... 9
    • Replies: 124
    • Views: 50,707
    02-12-2015, 04:16 AM Go to last post
  16. Sticky Thread Sticky: "The BIG BOV thread" (Where all bov question threads get merged)

    Started by p7r4e7y, 05-21-2001 08:34 AM
    792 Pages
    1 2 3 4 5 ... 792
    • Replies: 11,874
    • Views: 928,551
    02-27-2015, 01:02 PM Go to last post
  1. Bugeye WRX w/ previous mods

    Started by AuzzyP, 01-20-2015 07:48 AM
    • Replies: 4
    • Views: 281
    01-20-2015, 11:10 AM Go to last post
  2. School me. td04-19t '05 Wrx

    Started by 4eat05, 11-03-2014 09:01 PM
    3 Pages
    1 2 3
    • Replies: 37
    • Views: 2,396
    01-21-2015, 10:59 AM Go to last post
  3. sti y pipe silcone question

    Started by wrx96, 01-21-2015 03:27 PM
    • Replies: 0
    • Views: 185
    01-21-2015, 03:27 PM Go to last post
  4. Exhaust fitment?

    Started by Champ10n, 01-10-2015 04:14 PM
    • Replies: 4
    • Views: 268
    01-22-2015, 11:44 AM Go to last post
  5. Is Cobb SF Intake & Airbox harmful to the engine?

    Started by StraightTrexin, 01-22-2015 08:02 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 586
    01-23-2015, 03:31 PM Go to last post
  6. opinions for next power upgrades

    Started by disqimation, 01-22-2015 03:22 AM
    2 Pages
    1 2
    • Replies: 24
    • Views: 744
    01-24-2015, 12:31 AM Go to last post
  7. Mid-Pipe Question?

    Started by Spyder65, 01-21-2015 11:20 AM
    • Replies: 9
    • Views: 367
    01-24-2015, 01:05 PM Go to last post
  8. Tmic vs fmic

    Started by greasemonkey95, 01-20-2015 09:17 AM
    • Replies: 6
    • Views: 397
    01-24-2015, 03:24 PM Go to last post
  9. Cut only the muffler off

    Started by moparboy, 01-22-2015 09:36 AM
    2 Pages
    1 2
    • Replies: 19
    • Views: 594
    01-24-2015, 03:42 PM Go to last post
  10. Air intake elbow

    Started by Wrx2002nashville, 01-25-2015 01:15 AM
    • Replies: 4
    • Views: 211
    01-25-2015, 04:48 PM Go to last post
  11. TD04-19t conversion

    Started by 05'wrxfranco, 01-21-2015 01:44 PM
    2 Pages
    1 2
    • Replies: 21
    • Views: 642
    01-25-2015, 05:42 PM Go to last post
  12. Building Uppipe

    Started by TooMuchSauce, 01-25-2015 09:12 PM
    • Replies: 1
    • Views: 197
    zax
    01-25-2015, 10:04 PM Go to last post
  13. ? About my mixed messages regarding my build.

    Started by Rhawley, 01-25-2015 01:53 AM
    • Replies: 14
    • Views: 340
    01-26-2015, 06:50 AM Go to last post
  14. power up, 400hp goal

    Started by Str8EdgeBrandon, 01-27-2015 04:19 PM
    • Replies: 14
    • Views: 462
    01-27-2015, 07:37 PM Go to last post
  15. RacerX Tmic for 2015 wrx

    Started by imrbobby, 01-27-2015 07:41 PM
    • Replies: 1
    • Views: 289
    01-27-2015, 08:25 PM Go to last post
  16. Front mounted ETS intercooler?

    Started by Rhawley, 01-14-2015 04:30 PM
    • Replies: 13
    • Views: 515
    01-28-2015, 05:18 PM Go to last post
  17. Question Uppipe removal guidance

    Started by WRX-maniac, 01-25-2015 02:51 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 478
    01-28-2015, 07:41 PM Go to last post
  18. blown turbo

    Started by will_cyr, 01-29-2015 08:57 PM
    • Replies: 4
    • Views: 283
    01-29-2015, 09:56 PM Go to last post
  19. Turbo rattling?

    Started by charlie.flaugh, 01-30-2015 08:53 AM
    • Replies: 7
    • Views: 275
    01-30-2015, 10:06 AM Go to last post
  20. Looking for just a little more power

    Started by Tony2014wrx, 01-27-2015 02:34 PM
    • Replies: 13
    • Views: 440
    01-30-2015, 10:19 AM Go to last post
  21. Engine mod ideas

    Started by eleazarhood, 01-27-2015 10:02 PM
    • Replies: 7
    • Views: 401
    01-30-2015, 07:13 PM Go to last post
  22. Car hesitating to go

    Started by Daltonp45, 01-29-2015 07:32 PM
    2 Pages
    1 2
    • Replies: 19
    • Views: 474
    01-31-2015, 01:01 AM Go to last post
  23. colorado wrx owners!

    Started by mk3soupsoup, 01-30-2015 09:22 PM
    • Replies: 1
    • Views: 234
    01-31-2015, 09:06 AM Go to last post
  24. What would you do?

    Started by WRX-maniac, 01-30-2015 03:46 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 545
    02-01-2015, 04:31 PM Go to last post
  25. Fuel Injectors

    Started by Binkk24, 01-30-2015 09:41 PM
    • Replies: 11
    • Views: 339
    02-02-2015, 05:15 PM Go to last post
  26. Aftermarket Cobb Intake

    Started by obiling, 02-02-2015 10:15 AM
    • Replies: 7
    • Views: 409
    02-03-2015, 10:27 AM Go to last post
  27. 2015 WRX OEM Exhaust Question

    Started by tommy7189, 02-03-2015 02:42 PM
    • Replies: 2
    • Views: 302
    02-03-2015, 03:53 PM Go to last post
  28. Catted or catless down pipe?

    Started by 19transam81, 01-28-2015 08:58 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 712
    02-03-2015, 04:41 PM Go to last post
  29. Stage 2 tune with possible stock downpipe (re-installed)

    Started by m00se, 02-03-2015 12:02 PM
    2 Pages
    1 2
    • Replies: 25
    • Views: 563
    02-04-2015, 01:34 PM Go to last post
  30. Grimmspeed EBCS vs AEM Tru Boost

    Started by Monk_Knight, 01-29-2015 03:00 PM
    3 Pages
    1 2 3
    • Replies: 32
    • Views: 890
    02-04-2015, 02:55 PM Go to last post
  31. 2008 hatch performance upgrades

    Started by MrOrange, 02-04-2015 04:56 PM
    • Replies: 2
    • Views: 212
    02-04-2015, 05:49 PM Go to last post
  32. Exclamation NEED NEW MOTOR

    Started by dlewis1000, 02-04-2015 03:42 PM
    • Replies: 7
    • Views: 316
    02-05-2015, 09:11 PM Go to last post
  33. TURBO HELP!!

    Started by 11wrxCO, 02-04-2015 11:48 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 483
    02-05-2015, 10:48 PM Go to last post
  34. Time to open up my 13 wrx. What would/did you do?

    Started by WRXJoplin, 01-01-2015 10:50 PM
    3 Pages
    1 2 3
    • Replies: 38
    • Views: 1,632
    02-06-2015, 02:56 PM Go to last post
  35. 05 wrx noise after installing up and down pipe , no tune yet

    Started by volodyalysak, 02-03-2015 01:26 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 474
    02-07-2015, 09:46 AM Go to last post

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