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: 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: 145,214
    03-29-2015, 01:45 PM Go to last post
  2. 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: 358,970
    03-22-2015, 03:35 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: 11,874
    • Views: 943,680
    02-27-2015, 12:02 PM Go to last post
  4. 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: 53,610
    02-12-2015, 03:16 AM Go to last post
  5. 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: 56,604
    01-15-2015, 09:17 AM Go to last post
  6. Sticky Thread Sticky: Fuel System 101 FAQ

    Started by adam@kronosperformance, 06-30-2011 11:16 AM
    • Replies: 7
    • Views: 14,229
    01-10-2015, 09:47 AM Go to last post
  7. 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: 93
    • Views: 46,796
    12-09-2014, 03:43 PM 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: 35,743
    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: 8,565
    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: 7,126
    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: 4,797
    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: 27,439
    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: 22,069
    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: 14,013
    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: 90,562
    09-29-2004, 09:25 PM Go to last post
  1. New (to me) WRX Blowing Smoke like a train

    Started by jkd12589, 04-02-2015 02:04 AM
    9 Pages
    1 2 3 4 5 ... 9
    • Replies: 128
    • Views: 2,212
    Yesterday, 02:29 PM Go to last post
  2. Low compression Cylinder 4

    Started by scoobaru03, Yesterday 01:47 PM
    • Replies: 0
    • Views: 85
    Yesterday, 01:47 PM Go to last post
  3. What First Mods?

    Started by GCrane, 04-12-2015 12:45 PM
    • Replies: 4
    • Views: 198
    Yesterday, 10:41 AM Go to last post
  4. Can anyone tell me what downpipe this is?

    Started by jbreezy, 04-17-2015 04:11 PM
    • Replies: 4
    • Views: 142
    Yesterday, 08:22 AM Go to last post
  5. Cold air intake for 2015 WRX

    Started by Guywrx, 04-17-2015 03:29 PM
    • Replies: 11
    • Views: 236
    04-17-2015, 05:01 PM Go to last post
    • Replies: 10
    • Views: 304
    04-17-2015, 02:36 PM Go to last post
  6. How to make it to stage 2?

    Started by whiteboy720, 04-16-2015 07:49 PM
    • Replies: 6
    • Views: 360
    04-17-2015, 05:52 AM Go to last post
  7. Moved: Make it to stage 2?

    Started by whiteboy720, 04-17-2015 05:51 AM
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  8. 2015 WRX Exhaust Questions

    Started by Raven Logics, 04-11-2015 11:07 AM
    2 Pages
    1 2
    • Replies: 20
    • Views: 542
    04-16-2015, 10:53 AM Go to last post
  9. ProcessWest TMIC vs Grimspeed TMIC. 2013 WRX

    Started by TownLine500, 04-14-2015 11:51 AM
    2 Pages
    1 2
    • Replies: 25
    • Views: 451
    zax
    04-15-2015, 08:43 PM Go to last post
  10. Grimmspeed Downpipe Review

    Started by jbreezy, 04-15-2015 10:46 AM
    2 Pages
    1 2
    • Replies: 21
    • Views: 370
    04-15-2015, 08:20 PM Go to last post
  11. Just ordered a Process West TMIC (installed 9/4/2010)

    Started by Sasquatch, 08-26-2010 01:57 PM
    2 Pages
    1 2
    • Replies: 28
    • Views: 6,089
    04-15-2015, 05:40 PM Go to last post
  12. Forgged pistons?

    Started by Daltonp45, 04-14-2015 02:46 PM
    • Replies: 11
    • Views: 271
    04-15-2015, 05:05 PM Go to last post
  13. 2009 wrx knock sencer

    Started by theprodigy801, 04-15-2015 06:20 AM
    • Replies: 0
    • Views: 116
    04-15-2015, 06:20 AM Go to last post
  14. Thumbs up 2015 STI brakes swap with a 2015 WRX?

    Started by MY15WRBRex, 03-20-2015 09:27 AM
    • Replies: 8
    • Views: 444
    04-14-2015, 02:52 PM Go to last post
  15. 120K mile status report - Stock w/ Cobb Stage 1

    Started by goBoating, 04-14-2015 10:30 AM
    • Replies: 0
    • Views: 149
    04-14-2015, 10:30 AM Go to last post
  16. 2015 WRX CVT fuel map

    Started by mhayes, 02-03-2015 12:30 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 1,383
    04-14-2015, 08:18 AM Go to last post
  17. Engine building queations

    Started by XJman, 04-13-2015 03:16 PM
    • Replies: 7
    • Views: 176
    04-13-2015, 06:37 PM Go to last post
  18. New engine suggest

    Started by CoCoTwrx, 04-12-2015 04:01 PM
    • Replies: 5
    • Views: 203
    04-13-2015, 12:20 PM Go to last post
  19. Noob Question: Need help with J-Pipes for FA20

    Started by DanaD3x, 02-27-2015 04:58 PM
    • Replies: 8
    • Views: 420
    zax
    04-13-2015, 09:52 AM Go to last post
  20. E85 fuel

    Started by CoCoTwrx, 04-11-2015 03:09 PM
    • Replies: 2
    • Views: 170
    04-12-2015, 02:36 PM Go to last post
  21. 2014 Hatch CBE in 2015 WRX

    Started by strudinox, 04-10-2015 10:15 PM
    • Replies: 6
    • Views: 193
    04-11-2015, 09:59 PM Go to last post
    • Replies: 8
    • Views: 475
    04-11-2015, 12:36 PM Go to last post
  22. questions about mods

    Started by theprodigy801, 04-05-2015 10:21 PM
    • Replies: 10
    • Views: 330
    04-09-2015, 11:28 AM Go to last post
  23. Stock Engine and Tranny Limits

    Started by SubiNewbi, 02-04-2009 11:44 AM
    • Replies: 8
    • Views: 3,781
    zax
    04-09-2015, 10:11 AM Go to last post
    • Replies: 9
    • Views: 367
    04-09-2015, 07:53 AM Go to last post
  24. stage 1 review

    Started by nsibanez, 10-18-2014 10:39 PM
    8 Pages
    1 2 3 4 5 ... 8
    • Replies: 118
    • Views: 4,964
    04-08-2015, 03:14 PM Go to last post
  25. building my 2015 wrx base model

    Started by ronniedb82, 04-05-2015 10:54 PM
    • Replies: 5
    • Views: 349
    04-06-2015, 11:25 AM Go to last post
  26. how do i make a recirculating line for boost.

    Started by boostinbraun, 04-01-2015 08:37 AM
    • Replies: 5
    • Views: 231
    04-04-2015, 06:44 PM Go to last post
  27. Cobb TD05H Turbo

    Started by JaySin, 03-30-2015 11:58 AM
    • Replies: 8
    • Views: 349
    04-04-2015, 02:33 PM Go to last post
  28. Muffler choice for custom axleback

    Started by TheGuyWithaSubie, 04-02-2015 01:56 PM
    • Replies: 1
    • Views: 189
    04-03-2015, 07:03 PM Go to last post
  29. 2015 wrx mods before tuning

    Started by huitt06, 09-07-2014 12:50 PM
    4 Pages
    1 2 3 4
    • Replies: 55
    • Views: 12,140
    04-03-2015, 03:40 PM Go to last post
  30. Fp 18g question

    Started by Derekshep, 03-31-2015 10:32 AM
    • Replies: 13
    • Views: 281
    04-01-2015, 12:00 PM Go to last post
  31. I Need HP and mods!!

    Started by subaruwrx21, 03-30-2015 11:01 PM
    5 Pages
    1 2 3 4 5
    • Replies: 69
    • Views: 1,416
    zax
    04-01-2015, 06:26 AM Go to last post
    • Replies: 4
    • Views: 219
    03-31-2015, 07:40 PM Go to last post

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