Engine Modifications
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Threads 1 to 24 of 24

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: 49
    • Posts: 691

    Last Post:

    High Altitude Tuning Go to last post

    03-01-2017, 11:52 AM

  1. Sticky Thread Sticky: "The BIG BOV thread" (Where all bov question threads get merged)

    Started by p7r4e7y, 05-21-2001 07:34 AM
    798 Pages
    1 2 3 4 5 ... 798
    • Replies: 11,960
    • Views: 1,156,743
    01-25-2017, 02:02 PM Go to last post
  2. Sticky Thread Sticky: Exhaust Video/Sound Clips

    Started by TurnWRX, 03-29-2004 10:37 PM
    39 Pages
    1 2 3 4 5 ... 39
    • Replies: 572
    • Views: 406,446
    04-16-2017, 10:16 AM Go to last post
  3. Sticky Thread Sticky: First Modifications - what to do and not to do

    Started by mycologist, 01-25-2010 08:05 PM
    16 Pages
    1 2 3 4 5 ... 16
    • Replies: 235
    • Views: 278,617
    11-24-2015, 08:58 PM Go to last post
  4. Sticky Thread Sticky: Engine Performance FAQ [[[READ ME]]]

    Started by ebr0t, 09-28-2004 06:59 PM
    • Replies: 1
    • Views: 101,459
    09-29-2004, 09:25 PM Go to last post
  5. Sticky Thread Sticky: Exhaust FAQ

    Started by EJ257, 03-30-2010 03:30 PM
    11 Pages
    1 2 3 4 5 ... 11
    • Replies: 161
    • Views: 85,838
    01-09-2017, 12:03 PM Go to last post
  6. 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: 96
    • Views: 80,093
    01-18-2017, 08:23 PM Go to last post
  7. 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: 76,741
    02-12-2015, 03:16 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: 50,829
    01-22-2014, 06:56 PM Go to last post
  9. 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: 31,212
    01-02-2011, 02:58 PM 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: 27,214
    09-27-2009, 06:51 AM Go to last post
  11. Sticky Thread Sticky: Fuel System 101 FAQ

    Started by adam@kronosperformance, 06-30-2011 11:16 AM
    • Replies: 7
    • Views: 21,587
    01-10-2015, 09:47 AM Go to last post
  12. Sticky Thread Sticky: Blowoff Valve (BOV) FAQ

    Started by Sinister, 07-11-2013 10:55 PM
    • Replies: 2
    • Views: 16,264
    zax
    07-19-2013, 08:13 AM 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: 15,850
    08-12-2007, 04:41 PM Go to last post
  14. Sticky Thread Sticky: Intake FAQ

    Started by EJ257, 04-09-2013 09:07 PM
    • Replies: 0
    • Views: 11,680
    04-09-2013, 09:07 PM Go to last post
  15. Sticky Thread Sticky: The BIG Intake Manifold/TGV/Phenolic Spacer FAQ!

    Started by zax, 11-20-2012 01:57 PM
    • Replies: 0
    • Views: 7,705
    zax
    11-20-2012, 01:57 PM Go to last post
  16. Sticky Thread Moved: BIG Intake Manifold FAQ!

    Started by zax, 11-20-2012 01:51 PM
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  1. Purge solenoid delete

    Started by sxcrxy, 12-19-2012 09:19 PM
    • Replies: 4
    • Views: 3,972
    06-15-2017, 07:18 PM Go to last post
  2. Oil catch can?

    Started by Hankscorpio, 04-19-2016 06:25 PM
    2 Pages
    1 2
    • Replies: 27
    • Views: 2,187
    05-31-2017, 01:43 PM Go to last post
  3. 2009 SPT Exhaust and Resonator Question

    Started by Josh0979, 12-26-2009 01:59 PM
    • Replies: 1
    • Views: 1,070
    05-21-2017, 12:20 AM Go to last post
  4. Smile 2015 wrx list of parts about to put on. Needing tips.

    Started by 2015navywrx, 05-07-2017 10:14 PM
    2 Pages
    1 2
    • Replies: 26
    • Views: 697
    05-26-2017, 02:20 PM Go to last post
  5. First Mod, Catback Exhaust: Magnaflow Street 15471?

    Started by OZMartini, 05-10-2017 08:04 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 563
    05-12-2017, 06:45 AM Go to last post
  6. External Wastegate

    Started by tuapola93, 04-21-2017 05:22 PM
    2 Pages
    1 2
    • Replies: 24
    • Views: 532
    05-23-2017, 03:34 PM Go to last post
  7. Car Wont Start after Fuel Mods, Help!

    Started by Dtown_STI, 05-27-2017 03:17 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 338
    05-30-2017, 11:01 AM Go to last post
    • Replies: 8
    • Views: 326
    06-10-2017, 07:15 AM Go to last post
    • Replies: 1
    • Views: 310
    05-15-2017, 01:51 PM Go to last post
  8. Advice on Cobb Stange 1 Upgrade

    Started by qah_rex, 06-15-2017 03:28 PM
    • Replies: 8
    • Views: 281
    06-22-2017, 07:36 AM Go to last post
  9. Turbo upgrade

    Started by Timmy jack, 06-02-2017 01:51 PM
    • Replies: 9
    • Views: 261
    06-05-2017, 03:08 PM Go to last post
  10. 02-07 sti tmic on 09 wrx?

    Started by Dongatoni, 06-02-2017 04:27 AM
    • Replies: 14
    • Views: 243
    06-04-2017, 09:04 AM Go to last post
    • Replies: 3
    • Views: 234
    05-17-2017, 10:44 AM Go to last post
  11. Opinions on blown turbo situation

    Started by kris142b, 05-21-2017 09:59 AM
    • Replies: 5
    • Views: 233
    05-22-2017, 09:47 AM Go to last post
  12. Injectors

    Started by Timmy jack, 06-08-2017 08:06 AM
    • Replies: 13
    • Views: 227
    06-10-2017, 07:42 AM Go to last post
  13. Electric Exhaust Cutout help

    Started by 09SilverWRX, 05-18-2017 08:59 PM
    • Replies: 3
    • Views: 204
    zax
    05-19-2017, 06:30 AM Go to last post
  14. fix wastegatearm in open position

    Started by ktmandi, 05-30-2017 03:05 PM
    • Replies: 8
    • Views: 200
    06-03-2017, 10:57 AM Go to last post
  15. Charge pipe & stage 2 question 2017 wrx

    Started by Golds318, 05-26-2017 09:46 AM
    • Replies: 2
    • Views: 196
    05-26-2017, 03:05 PM Go to last post
  16. Need help diagnosing lag issue

    Started by sebi4708, 06-19-2017 07:59 PM
    • Replies: 7
    • Views: 194
    06-21-2017, 03:29 PM Go to last post
  17. My WRX has a STI turbo, do I NEED a STI TMIC?

    Started by btort27, 06-19-2017 03:37 AM
    • Replies: 3
    • Views: 136
    06-19-2017, 10:55 PM Go to last post
  18. Stage 2+ 2006 WRX

    Started by BananaSammiches, 05-30-2017 06:51 AM
    • Replies: 1
    • Views: 129
    05-30-2017, 04:02 PM Go to last post
  19. octane boosting

    Started by Stanley Yahtzee, Yesterday 02:20 PM
    • Replies: 12
    • Views: 122
    Yesterday, 03:41 PM Go to last post
  20. Mystery axle back exhaust

    Started by Dongatoni, 06-02-2017 06:03 PM
    • Replies: 0
    • Views: 112
    06-02-2017, 06:03 PM Go to last post
  21. Knocking or tapping noise inside the cabin

    Started by littleredcrate, 06-12-2017 06:41 PM
    • Replies: 0
    • Views: 109
    06-12-2017, 06:41 PM Go to last post

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