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

    by

    11-06-2014, 06:28 PM

  1. 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: 11,865
    • Views: 911,537
    01-18-2015, 02:42 PM Go to last post
  2. 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: 350,970
    06-27-2014, 02:38 PM Go to last post
  3. 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: 130,206
    07-20-2014, 07:02 AM Go to last post
  4. 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: 51,662
    01-15-2015, 10:17 AM Go to last post
  5. 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: 122
    • Views: 48,220
    zax
    08-11-2014, 09:30 AM Go to last post
  6. 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: 42,304
    12-09-2014, 04:43 PM Go to last post
  7. 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: 26,606
    01-02-2011, 03:58 PM Go to last post
  8. Sticky Thread Sticky: Water/Methanol Injection FAQ

    Started by EJ257, 04-06-2010 09:04 AM
    2 Pages
    1 2
    • Replies: 29
    • Views: 33,422
    01-22-2014, 07:56 PM Go to last post
  9. Sticky Thread Sticky: Subaru Catch All TSB Regarding Modding

    Started by 302@12psi, 08-12-2007 08:43 AM
    • Replies: 8
    • Views: 13,560
    08-12-2007, 05:41 PM Go to last post
  10. Sticky Thread Sticky: Fuel System 101 FAQ

    Started by adam@kronosperformance, 06-30-2011 12:16 PM
    • Replies: 7
    • Views: 13,061
    01-10-2015, 10:47 AM Go to last post
  11. Sticky Thread Sticky: Blowoff Valve (BOV) FAQ

    Started by Sinister, 07-11-2013 11:55 PM
    • Replies: 2
    • Views: 7,438
    zax
    07-19-2013, 09:13 AM Go to last post
  12. Sticky Thread Sticky: Engine Performance FAQ [[[READ ME]]]

    Started by ebr0t, 09-28-2004 07:59 PM
    • Replies: 1
    • Views: 89,079
    09-29-2004, 10:25 PM Go to last post
  13. Sticky Thread Moved: BIG Intake Manifold FAQ!

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

    Started by zax, 11-20-2012 02:57 PM
    • Replies: 0
    • Views: 4,207
    zax
    11-20-2012, 02:57 PM Go to last post
  15. Post Sticky Thread Sticky: I want 400WHP!!!1!juan!

    Started by TheJ, 09-27-2009 07:51 AM
    • Replies: 0
    • Views: 21,225
    09-27-2009, 07:51 AM Go to last post
  16. Sticky Thread Sticky: Intake FAQ

    Started by EJ257, 04-09-2013 10:07 PM
    • Replies: 0
    • Views: 6,222
    04-09-2013, 10:07 PM Go to last post
  1. 2008 WRX - how much power can it handle/produce?

    Started by xtremez2k, 06-07-2010 01:23 AM
    4 Pages
    1 2 3 4
    • Replies: 59
    • Views: 16,581
    01-02-2015, 02:17 AM Go to last post
  2. 2015 wrx mods before tuning

    Started by huitt06, 09-07-2014 01:50 PM
    4 Pages
    1 2 3 4
    • Replies: 48
    • Views: 6,664
    01-17-2015, 11:07 AM Go to last post
    • Replies: 45
    • Views: 2,513
    12-12-2014, 03:35 PM Go to last post
  3. Stock WRX turbo is not a 13G it is a 13T

    Started by hotrod, 01-17-2005 05:59 AM
    3 Pages
    1 2 3
    • Replies: 39
    • Views: 39,704
    12-25-2014, 04:48 PM Go to last post
  4. HELP! 2002 ej20

    Started by Klumzee, 12-09-2014 06:26 PM
    3 Pages
    1 2 3
    • Replies: 38
    • Views: 869
    01-09-2015, 04:03 PM Go to last post
  5. School me. td04-19t '05 Wrx

    Started by 4eat05, 11-03-2014 09:01 PM
    3 Pages
    1 2 3
    • Replies: 37
    • Views: 1,895
    01-21-2015, 10:59 AM Go to last post
  6. Car Running Strange in low RPMs

    Started by skudda33, 01-06-2015 08:24 AM
    3 Pages
    1 2 3
    • Replies: 32
    • Views: 848
    01-08-2015, 01:35 PM Go to last post
  7. 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: 30
    • Views: 884
    01-18-2015, 11:21 AM Go to last post
  8. Talking Invidia N1

    Started by Whitt11, 12-21-2014 07:41 PM
    2 Pages
    1 2
    • Replies: 28
    • Views: 515
    12-23-2014, 06:37 AM Go to last post
  9. Who has a straight pipe?

    Started by boston813, 03-05-2007 09:56 PM
    2 Pages
    1 2
    • Replies: 27
    • Views: 1,960
    01-12-2015, 10:20 AM Go to last post
  10. Question about upgrading under factory warranty

    Started by mdawson808, 12-12-2014 06:54 PM
    2 Pages
    1 2
    • Replies: 27
    • Views: 713
    12-13-2014, 07:19 PM Go to last post
  11. opinions for next power upgrades

    Started by disqimation, 01-22-2015 03:22 AM
    2 Pages
    1 2
    • Replies: 24
    • Views: 477
    Yesterday, 12:31 AM Go to last post
  12. Catback exhaust

    Started by Wrx>>, 11-24-2014 05:16 PM
    2 Pages
    1 2
    • Replies: 21
    • Views: 1,000
    12-23-2014, 07:09 PM Go to last post
  13. TD04-19t conversion

    Started by 05'wrxfranco, 01-21-2015 01:44 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 353
    zax
    01-23-2015, 11:03 PM Go to last post
  14. Cut only the muffler off

    Started by moparboy, 01-22-2015 09:36 AM
    2 Pages
    1 2
    • Replies: 19
    • Views: 348
    Yesterday, 03:42 PM Go to last post
  15. Intake without tune

    Started by nevesseven, 01-04-2015 12:36 PM
    2 Pages
    1 2
    • Replies: 19
    • Views: 599
    zax
    01-05-2015, 02:17 PM Go to last post
  16. What's wrong with my car

    Started by Abarrios528, 12-24-2014 09:29 PM
    2 Pages
    1 2
    • Replies: 19
    • Views: 513
    12-25-2014, 08:42 PM Go to last post
  17. Down Pipe ? divorced wastegate -vs- Reg

    Started by bthomas6674, 05-17-2005 11:10 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 1,795
    01-18-2015, 02:57 PM Go to last post
    • Replies: 16
    • Views: 558
    01-13-2015, 11:26 AM Go to last post
  18. 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: 310
    01-23-2015, 03:31 PM Go to last post
  19. thinking of buying 02 wrx..... but small problem

    Started by substi555, 12-19-2014 12:57 AM
    2 Pages
    1 2
    • Replies: 15
    • Views: 505
    12-25-2014, 06:22 AM Go to last post
  20. After turbo swap question

    Started by frenziedcage, 01-09-2015 10:18 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 487
    01-15-2015, 03:20 PM Go to last post
  21. Air Oil Seperators

    Started by TownLine500, 12-13-2014 09:12 PM
    • Replies: 14
    • Views: 494
    12-16-2014, 03:24 AM Go to last post
  22. is the car safe to drive?

    Started by substi555, 01-08-2015 10:30 AM
    • Replies: 14
    • Views: 371
    01-09-2015, 08:00 AM Go to last post
  23. Recommendations? Suggestions? Opinions?

    Started by Cade06WRX, 12-04-2014 08:12 PM
    • Replies: 14
    • Views: 560
    12-16-2014, 02:40 PM Go to last post
  24. 2015 WRX Subispeed Quad Exhaust

    Started by Zance, 10-27-2014 06:53 PM
    • Replies: 14
    • Views: 1,005
    12-24-2014, 06:23 AM Go to last post
  25. STi smoke from crankcase and exhaust.....

    Started by substi555, 12-09-2014 01:53 AM
    • Replies: 13
    • Views: 426
    12-11-2014, 07:49 PM Go to last post
  26. Custom Fab Recirculating Downpipe Question

    Started by thump88, 01-08-2015 07:10 PM
    • Replies: 13
    • Views: 363
    01-15-2015, 10:48 AM Go to last post
    • Replies: 12
    • Views: 258
    12-23-2014, 01:44 PM Go to last post
  27. Thumbs up WRX MODS

    Started by Whitt11, 12-12-2014 06:21 PM
    • Replies: 12
    • Views: 395
    12-13-2014, 01:20 PM Go to last post
  28. Turboxs RFL Bov install help

    Started by Iamwrxtacy, 12-22-2014 01:10 PM
    • Replies: 11
    • Views: 262
    12-22-2014, 08:18 PM Go to last post
  29. Idle problem

    Started by Daltonp45, 11-19-2014 08:45 PM
    • Replies: 11
    • Views: 390
    zax
    12-22-2014, 07:29 AM Go to last post
  30. Turbo Upgrade Fuel Question

    Started by frenziedcage, 12-26-2014 12:15 AM
    • Replies: 10
    • Views: 326
    12-28-2014, 10:33 PM Go to last post
  31. Letting Turbo Warm Up during Break in Stage

    Started by TorbysWRX, 12-30-2014 05:08 PM
    • Replies: 10
    • Views: 492
    01-01-2015, 02:31 PM Go to last post
  32. Mid-Pipe Question?

    Started by Spyder65, 01-21-2015 11:20 AM
    • Replies: 9
    • Views: 231
    Yesterday, 01:05 PM Go to last post

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