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, 05:28 PM

  1. 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: 55,707
    02-12-2015, 03:16 AM Go to last post
  2. 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: 958,300
    04-21-2015, 11:59 AM Go to last post
  3. Sticky Thread Moved: BIG Intake Manifold FAQ!

    Started by zax, 11-20-2012 01:51 PM
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  4. Sticky Thread Sticky: Blowoff Valve (BOV) FAQ

    Started by Sinister, 07-11-2013 10:55 PM
    • Replies: 2
    • Views: 9,184
    zax
    07-19-2013, 08:13 AM Go to last post
  5. Sticky Thread Sticky: Engine Performance FAQ [[[READ ME]]]

    Started by ebr0t, 09-28-2004 06:59 PM
    • Replies: 1
    • Views: 91,177
    09-29-2004, 09:25 PM 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: 59,042
    01-15-2015, 09:17 AM Go to last post
  7. 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: 363,195
    03-22-2015, 03:35 PM Go to last post
  8. 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: 208
    • Views: 152,306
    03-29-2015, 01:45 PM Go to last post
  9. Sticky Thread Sticky: Fuel System 101 FAQ

    Started by adam@kronosperformance, 06-30-2011 11:16 AM
    • Replies: 7
    • Views: 14,714
    01-10-2015, 09:47 AM Go to last post
  10. Post Sticky Thread Sticky: I want 400WHP!!!1!juan!

    Started by TheJ, 09-27-2009 06:51 AM
    • Replies: 0
    • Views: 22,462
    09-27-2009, 06:51 AM Go to last post
  11. Sticky Thread Sticky: Intake FAQ

    Started by EJ257, 04-09-2013 09:07 PM
    • Replies: 0
    • Views: 7,534
    04-09-2013, 09:07 PM Go to last post
  12. 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: 27,816
    01-02-2011, 02:58 PM Go to last post
  13. Sticky Thread Sticky: Subaru Catch All TSB Regarding Modding

    Started by 302@12psi, 08-12-2007 07:43 AM
    • Replies: 8
    • Views: 14,189
    08-12-2007, 04:41 PM Go to last post
  14. Sticky Thread Sticky: The BIG Intake Manifold/TGV/Phenolic Spacer FAQ!

    Started by zax, 11-20-2012 01:57 PM
    • Replies: 0
    • Views: 5,120
    zax
    11-20-2012, 01:57 PM Go to last post
  15. 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: 49,265
    05-11-2015, 12:33 PM Go to last post
  16. Sticky Thread Sticky: Water/Methanol Injection FAQ

    Started by EJ257, 04-06-2010 08:04 AM
    2 Pages
    1 2
    • Replies: 29
    • Views: 36,891
    01-22-2014, 06:56 PM Go to last post
  1. 02' wagon engine rebuild question, San Francisco

    Started by tha83, 05-18-2015 09:54 PM
    • Replies: 2
    • Views: 125
    05-19-2015, 07:50 AM Go to last post
  2. 120K mile status report - Stock w/ Cobb Stage 1

    Started by goBoating, 04-14-2015 10:30 AM
    • Replies: 3
    • Views: 382
    04-23-2015, 05:43 AM Go to last post
  3. 15 exhaust question

    Started by mizzzike, 05-10-2015 10:27 AM
    • Replies: 10
    • Views: 403
    05-10-2015, 08:31 PM Go to last post
  4. 2002 brakes

    Started by Bugeyes54, 05-01-2015 08:36 AM
    • Replies: 1
    • Views: 206
    05-01-2015, 02:16 PM Go to last post
  5. 2009 wrx knock sencer

    Started by theprodigy801, 04-15-2015 06:20 AM
    • Replies: 0
    • Views: 203
    04-15-2015, 06:20 AM Go to last post
  6. 2010 injen cold air intake

    Started by Alphawolf541, 05-09-2015 04:50 PM
    • Replies: 3
    • Views: 167
    05-09-2015, 06:22 PM Go to last post
  7. 2014 Hatch CBE in 2015 WRX

    Started by strudinox, 04-10-2015 10:15 PM
    • Replies: 6
    • Views: 283
    04-11-2015, 09:59 PM Go to last post
  8. 2015 intercooler vs 2014

    Started by svtfever, 05-10-2015 12:56 PM
    • Replies: 9
    • Views: 329
    05-12-2015, 01:33 PM Go to last post
  9. Thumbs up 2015 STI brakes swap with a 2015 WRX?

    Started by MY15WRBRex, 03-20-2015 09:27 AM
    • Replies: 8
    • Views: 607
    04-14-2015, 02:52 PM Go to last post
  10. 2015 WRX - Milk Jug Delete?

    Started by wrxatx, 09-12-2014 09:08 PM
    2 Pages
    1 2
    • Replies: 26
    • Views: 8,447
    05-14-2015, 08:27 PM Go to last post
    • Replies: 4
    • Views: 533
    04-28-2015, 11:43 PM Go to last post
  11. 2015 WRX CVT fuel map

    Started by mhayes, 02-03-2015 12:30 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 1,765
    04-14-2015, 08:18 AM Go to last post
  12. 2015 WRX Exhaust Questions

    Started by Raven Logics, 04-11-2015 11:07 AM
    2 Pages
    1 2
    • Replies: 20
    • Views: 1,040
    04-16-2015, 10:53 AM Go to last post
  13. 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: 671
    05-16-2015, 10:36 PM Go to last post
  14. about to buy .....but

    Started by jimmyjp, 04-29-2015 08:41 PM
    • Replies: 1
    • Views: 301
    04-29-2015, 08:44 PM Go to last post
  15. About to install an Invidia V2 downpipe

    Started by Sal.LV93, 04-21-2015 06:41 AM
    • Replies: 5
    • Views: 301
    04-23-2015, 04:28 AM Go to last post
  16. Accessport stage 1 - better gas mileage?

    Started by swrdply400mrelay, 05-02-2015 08:30 AM
    • Replies: 5
    • Views: 397
    05-05-2015, 12:15 PM Go to last post
  17. AEM CAI vs COBB SF Intake with air box

    Started by xaviershady, 05-15-2015 01:33 PM
    • Replies: 1
    • Views: 146
    zax
    05-15-2015, 01:39 PM Go to last post
  18. Blown 06 WRX Engine Need information

    Started by zore, 04-23-2015 03:57 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 476
    zax
    04-24-2015, 02:13 PM Go to last post
  19. Boost PSI problem Stage 1

    Started by withoutt, 05-12-2015 06:33 AM
    • Replies: 10
    • Views: 279
    05-12-2015, 11:26 AM Go to last post
  20. BOV bolt thread stripped, RTV gasket? any help

    Started by substi555, 05-16-2015 05:23 PM
    • Replies: 3
    • Views: 165
    05-16-2015, 07:53 PM Go to last post
  21. BOV stopped working after hitting max boost

    Started by DERKADERKA, 04-26-2015 10:00 PM
    • Replies: 4
    • Views: 257
    04-27-2015, 09:16 AM Go to last post
    • Replies: 17
    • Views: 473
    05-04-2015, 05:34 PM Go to last post
  22. CAI Kit Questions

    Started by New09wrx, 04-23-2015 05:24 AM
    • Replies: 0
    • Views: 226
    04-23-2015, 05:24 AM Go to last post
  23. CAI vs. SRI + hydroshields

    Started by Wrx>>, 05-04-2015 05:35 PM
    • Replies: 10
    • Views: 300
    05-04-2015, 07:13 PM Go to last post
  24. Can anyone tell me what downpipe this is?

    Started by jbreezy, 04-17-2015 04:11 PM
    • Replies: 4
    • Views: 260
    04-18-2015, 08:22 AM Go to last post
  25. Cat or no cat

    Started by Raul_wrx, 05-20-2015 07:58 AM
    • Replies: 4
    • Views: 220
    05-21-2015, 05:33 AM Go to last post
    • Replies: 0
    • Views: 182
    05-13-2015, 05:19 PM Go to last post
  26. Cobb downpipe "ebay" exhaust?

    Started by 4eat05, 05-14-2015 08:43 AM
    • Replies: 9
    • Views: 308
    05-20-2015, 02:04 PM Go to last post
  27. Cobb ebcs

    Started by Sal.LV93, 04-23-2015 03:05 PM
    • Replies: 2
    • Views: 260
    04-23-2015, 08:00 PM Go to last post
  28. Cold air intake for 2015 WRX

    Started by Guywrx, 04-17-2015 03:29 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 985
    04-19-2015, 07:19 PM Go to last post
  29. E85 fuel

    Started by CoCoTwrx, 04-11-2015 03:09 PM
    • Replies: 2
    • Views: 250
    04-12-2015, 02:36 PM Go to last post
  30. Emissions in UT on 2006 WRX

    Started by thatniglayne, 05-15-2015 03:10 PM
    • Replies: 11
    • Views: 241
    05-19-2015, 02:46 PM Go to last post
  31. Engine building queations

    Started by XJman, 04-13-2015 03:16 PM
    • Replies: 7
    • Views: 287
    04-13-2015, 06:37 PM Go to last post
  32. Exhaust install tips

    Started by ProZach626, 04-26-2015 02:12 PM
    • Replies: 11
    • Views: 413
    04-29-2015, 11:12 AM Go to last post

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