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, 05:28 PM

  1. Sticky Thread Sticky: First Modifications - what to do and not to do

    Started by mycologist, 01-25-2010 08:05 PM
    14 Pages
    1 2 3 4 5 ... 14
    • Replies: 209
    • Views: 152,613
    Yesterday, 07:58 AM Go to last post
  2. Sticky Thread Sticky: WARNING FOR BUYING CATTED DOWNPIPES!!!

    Started by Sinister, 10-27-2010 11:54 AM
    7 Pages
    1 2 3 4 5 ... 7
    • Replies: 94
    • Views: 49,372
    05-11-2015, 12:33 PM Go to last post
  3. Sticky Thread Sticky: "The BIG BOV thread" (Where all bov question threads get merged)

    Started by p7r4e7y, 05-21-2001 07:34 AM
    792 Pages
    1 2 3 4 5 ... 792
    • Replies: 11,876
    • Views: 958,959
    04-21-2015, 11:59 AM Go to last post
  4. Sticky Thread Sticky: Exhaust Video/Sound Clips

    Started by TurnWRX, 03-29-2004 10:37 PM
    38 Pages
    1 2 3 4 5 ... 38
    • Replies: 557
    • Views: 363,354
    03-22-2015, 03:35 PM 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 03:02 PM
    9 Pages
    1 2 3 4 5 ... 9
    • Replies: 124
    • Views: 55,766
    02-12-2015, 03:16 AM Go to last post
  6. Sticky Thread Sticky: Exhaust FAQ

    Started by EJ257, 03-30-2010 03:30 PM
    10 Pages
    1 2 3 4 5 ... 10
    • Replies: 135
    • Views: 59,110
    01-15-2015, 09:17 AM Go to last post
  7. Sticky Thread Sticky: Fuel System 101 FAQ

    Started by adam@kronosperformance, 06-30-2011 11:16 AM
    • Replies: 7
    • Views: 14,726
    01-10-2015, 09:47 AM Go to last post
  8. Sticky Thread Sticky: Water/Methanol Injection FAQ

    Started by EJ257, 04-06-2010 08:04 AM
    2 Pages
    1 2
    • Replies: 29
    • Views: 36,941
    01-22-2014, 06:56 PM Go to last post
  9. Sticky Thread Sticky: Blowoff Valve (BOV) FAQ

    Started by Sinister, 07-11-2013 10:55 PM
    • Replies: 2
    • Views: 9,199
    zax
    07-19-2013, 08:13 AM Go to last post
  10. Sticky Thread Sticky: Intake FAQ

    Started by EJ257, 04-09-2013 09:07 PM
    • Replies: 0
    • Views: 7,548
    04-09-2013, 09:07 PM Go to last post
  11. Sticky Thread Sticky: The BIG Intake Manifold/TGV/Phenolic Spacer FAQ!

    Started by zax, 11-20-2012 01:57 PM
    • Replies: 0
    • Views: 5,126
    zax
    11-20-2012, 01:57 PM Go to last post
  12. Sticky Thread Moved: BIG Intake Manifold FAQ!

    Started by zax, 11-20-2012 01:51 PM
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    •  
  13. Sticky Thread Sticky: SPT has released the new CBE's for 08 WRX 5dr & 4dr.

    Started by Weasel 555, 04-02-2008 05:35 AM
    6 Pages
    1 2 3 4 5 ... 6
    • Replies: 85
    • Views: 27,829
    01-02-2011, 02:58 PM Go to last post
  14. Post Sticky Thread Sticky: I want 400WHP!!!1!juan!

    Started by TheJ, 09-27-2009 06:51 AM
    • Replies: 0
    • Views: 22,479
    09-27-2009, 06:51 AM Go to last post
  15. Sticky Thread Sticky: Subaru Catch All TSB Regarding Modding

    Started by 302@12psi, 08-12-2007 07:43 AM
    • Replies: 8
    • Views: 14,191
    08-12-2007, 04:41 PM Go to last post
  16. Sticky Thread Sticky: Engine Performance FAQ [[[READ ME]]]

    Started by ebr0t, 09-28-2004 06:59 PM
    • Replies: 1
    • Views: 91,196
    09-29-2004, 09:25 PM Go to last post
  1. New 15 Wrx

    Started by AFCovault08, Yesterday 05:05 PM
    • Replies: 9
    • Views: 183
    Today, 07:08 AM Go to last post
  2. What rods to get?

    Started by frenziedcage, Yesterday 05:45 PM
    • Replies: 1
    • Views: 92
    Yesterday, 09:33 PM Go to last post
  3. Question about chipping

    Started by BrosBeforeHossa, 05-22-2015 07:02 PM
    • Replies: 13
    • Views: 213
    Yesterday, 03:38 AM Go to last post
  4. Cat or no cat

    Started by Raul_wrx, 05-20-2015 07:58 AM
    • Replies: 4
    • Views: 236
    05-21-2015, 05:33 AM Go to last post
  5. Cobb downpipe "ebay" exhaust?

    Started by 4eat05, 05-14-2015 08:43 AM
    • Replies: 9
    • Views: 319
    05-20-2015, 02:04 PM Go to last post
  6. Emissions in UT on 2006 WRX

    Started by thatniglayne, 05-15-2015 03:10 PM
    • Replies: 11
    • Views: 246
    05-19-2015, 02:46 PM Go to last post
  7. First engine mod

    Started by SuBiJoE, 05-16-2015 11:28 AM
    • Replies: 9
    • Views: 355
    05-19-2015, 12:14 PM Go to last post
  8. 02' wagon engine rebuild question, San Francisco

    Started by tha83, 05-18-2015 09:54 PM
    • Replies: 2
    • Views: 131
    05-19-2015, 07:50 AM Go to last post
  9. iam stuck! (exhuast choice)

    Started by TonyWRX15, 05-19-2015 04:14 AM
    • Replies: 4
    • Views: 163
    05-19-2015, 04:28 AM Go to last post
  10. Is a downpipe worth it?

    Started by withoutt, 05-18-2015 06:21 AM
    • Replies: 7
    • Views: 291
    05-18-2015, 12:50 PM Go to last post
  11. Poll Poll: 2015 WRX WR Blue First Mods HELP ASAP!!!!

    Started by magasiev13, 05-14-2015 10:23 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 734
    05-16-2015, 10:36 PM Go to last post
  12. BOV bolt thread stripped, RTV gasket? any help

    Started by substi555, 05-16-2015 05:23 PM
    • Replies: 3
    • Views: 170
    05-16-2015, 07:53 PM Go to last post
  13. Up to 17psi Max Boost on WRX!

    Started by mustanges, 02-04-2004 05:15 AM
    2 Pages
    1 2
    • Replies: 23
    • Views: 7,502
    05-15-2015, 10:01 PM Go to last post
  14. AEM CAI vs COBB SF Intake with air box

    Started by xaviershady, 05-15-2015 01:33 PM
    • Replies: 1
    • Views: 149
    zax
    05-15-2015, 01:39 PM Go to last post
  15. Invidia q300

    Started by Raul_wrx, 05-14-2015 01:03 PM
    • Replies: 14
    • Views: 319
    05-15-2015, 06:58 AM Go to last post
  16. 2015 WRX - Milk Jug Delete?

    Started by wrxatx, 09-12-2014 09:08 PM
    2 Pages
    1 2
    • Replies: 26
    • Views: 8,488
    05-14-2015, 08:27 PM Go to last post
  17. Intake without tune

    Started by nevesseven, 01-04-2015 11:36 AM
    2 Pages
    1 2
    • Replies: 28
    • Views: 1,514
    05-14-2015, 05:49 PM Go to last post
    • Replies: 0
    • Views: 189
    05-13-2015, 05:19 PM Go to last post
  18. Oil Change Question . HELP.

    Started by wrxzeek, 05-10-2015 07:18 PM
    2 Pages
    1 2
    • Replies: 29
    • Views: 695
    05-12-2015, 06:53 PM Go to last post
  19. 2015 intercooler vs 2014

    Started by svtfever, 05-10-2015 12:56 PM
    • Replies: 9
    • Views: 332
    05-12-2015, 01:33 PM Go to last post
  20. Boost PSI problem Stage 1

    Started by withoutt, 05-12-2015 06:33 AM
    • Replies: 10
    • Views: 280
    05-12-2015, 11:26 AM Go to last post
  21. Stage 2????

    Started by Raul_wrx, 05-11-2015 07:39 PM
    • Replies: 3
    • Views: 393
    05-11-2015, 07:52 PM Go to last post
    • Replies: 41
    • Views: 24,753
    05-11-2015, 08:29 AM Go to last post
  22. Grimspeed boost controller

    Started by Markus75, 05-08-2015 11:30 AM
    • Replies: 1
    • Views: 257
    05-11-2015, 07:34 AM Go to last post
  23. 15 exhaust question

    Started by mizzzike, 05-10-2015 10:27 AM
    • Replies: 10
    • Views: 406
    05-10-2015, 08:31 PM Go to last post
  24. Help?!

    Started by rob_wrx, 05-10-2015 02:41 AM
    • Replies: 6
    • Views: 220
    05-10-2015, 03:25 AM Go to last post
  25. 2010 injen cold air intake

    Started by Alphawolf541, 05-09-2015 04:50 PM
    • Replies: 3
    • Views: 168
    05-09-2015, 06:22 PM Go to last post
  26. Nameless Axelback

    Started by wgokc, 04-29-2015 04:01 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 504
    05-09-2015, 04:24 PM Go to last post
  27. SRS cat back exhaust?

    Started by AJ_2002, 05-09-2015 02:56 PM
    • Replies: 0
    • Views: 145
    05-09-2015, 02:56 PM Go to last post
  28. Turbo inlet clamp size?

    Started by substi555, 05-09-2015 10:26 AM
    • Replies: 1
    • Views: 166
    05-09-2015, 02:56 PM Go to last post
  29. sti intercooler on wrx?

    Started by wrxrush, 05-09-2015 02:05 AM
    • Replies: 7
    • Views: 291
    05-09-2015, 11:23 AM Go to last post
  30. New 2014 WRX owner

    Started by withoutt, 04-29-2015 12:14 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 652
    05-08-2015, 12:20 PM Go to last post
  31. turbo flage bolts help

    Started by williamsdouglas, 07-13-2014 12:41 PM
    • Replies: 4
    • Views: 446
    05-07-2015, 09:29 AM Go to last post
  32. Turbo Charger Question.

    Started by TooMuchSauce, 04-24-2015 09:43 PM
    • Replies: 3
    • Views: 338
    05-06-2015, 06:37 PM Go to last post
  33. SR*S Catback Exhaust from EBAY PICS and VIDS

    Started by EvohuntinWRX, 04-30-2007 09:40 AM
    35 Pages
    1 2 3 4 5 ... 35
    • Replies: 520
    • Views: 141,311
    05-06-2015, 07:45 AM Go to last post

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