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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    • 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: "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: 962,412
    04-21-2015, 11:59 AM 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: 364,329
    03-22-2015, 03:35 PM 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
    15 Pages
    1 2 3 4 5 ... 15
    • Replies: 210
    • Views: 154,415
    05-25-2015, 06:44 AM Go to last post
  4. 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: 59,653
    01-15-2015, 09:17 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 03:02 PM
    9 Pages
    1 2 3 4 5 ... 9
    • Replies: 124
    • Views: 56,255
    02-12-2015, 03:16 AM 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: 94
    • Views: 49,949
    05-11-2015, 12:33 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 05:35 AM
    6 Pages
    1 2 3 4 5 ... 6
    • Replies: 85
    • Views: 27,912
    01-02-2011, 02:58 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: 37,219
    01-22-2014, 06:56 PM Go to last post
  9. Sticky Thread Sticky: Subaru Catch All TSB Regarding Modding

    Started by 302@12psi, 08-12-2007 07:43 AM
    • Replies: 8
    • Views: 14,218
    08-12-2007, 04:41 PM Go to last post
  10. Sticky Thread Sticky: Fuel System 101 FAQ

    Started by adam@kronosperformance, 06-30-2011 11:16 AM
    • Replies: 7
    • Views: 14,852
    01-10-2015, 09:47 AM Go to last post
  11. Sticky Thread Sticky: Blowoff Valve (BOV) FAQ

    Started by Sinister, 07-11-2013 10:55 PM
    • Replies: 2
    • Views: 9,310
    zax
    07-19-2013, 08:13 AM Go to last post
  12. Sticky Thread Sticky: Engine Performance FAQ [[[READ ME]]]

    Started by ebr0t, 09-28-2004 06:59 PM
    • Replies: 1
    • Views: 91,357
    09-29-2004, 09:25 PM Go to last post
  13. Sticky Thread Moved: BIG Intake Manifold FAQ!

    Started by zax, 11-20-2012 01:51 PM
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  14. Sticky Thread Sticky: The BIG Intake Manifold/TGV/Phenolic Spacer FAQ!

    Started by zax, 11-20-2012 01:57 PM
    • Replies: 0
    • Views: 5,194
    zax
    11-20-2012, 01:57 PM Go to last post
  15. Post Sticky Thread Sticky: I want 400WHP!!!1!juan!

    Started by TheJ, 09-27-2009 06:51 AM
    • Replies: 0
    • Views: 22,563
    09-27-2009, 06:51 AM Go to last post
  16. Sticky Thread Sticky: Intake FAQ

    Started by EJ257, 04-09-2013 09:07 PM
    • Replies: 0
    • Views: 7,625
    04-09-2013, 09:07 PM Go to last post
  1. 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: 141,873
    05-06-2015, 07:45 AM Go to last post
  2. New (to me) WRX Blowing Smoke like a train

    Started by jkd12589, 04-02-2015 02:04 AM
    10 Pages
    1 2 3 4 5 ... 10
    • Replies: 149
    • Views: 3,649
    04-23-2015, 03:39 PM Go to last post
    • Replies: 41
    • Views: 25,081
    05-11-2015, 08:29 AM Go to last post
  3. Equal length vs. Un-equal Length Headers

    Started by commbubba19, 03-14-2013 02:25 PM
    3 Pages
    1 2 3
    • Replies: 36
    • Views: 9,952
    05-25-2015, 06:12 AM Go to last post
  4. Oil Change Question . HELP.

    Started by wrxzeek, 05-10-2015 07:18 PM
    2 Pages
    1 2
    • Replies: 29
    • Views: 732
    05-12-2015, 06:53 PM Go to last post
  5. Intake without tune

    Started by nevesseven, 01-04-2015 11:36 AM
    2 Pages
    1 2
    • Replies: 28
    • Views: 1,620
    05-14-2015, 05:49 PM Go to last post
  6. 2015 WRX - Milk Jug Delete?

    Started by wrxatx, 09-12-2014 09:08 PM
    2 Pages
    1 2
    • Replies: 26
    • Views: 8,795
    05-14-2015, 08:27 PM Go to last post
  7. Up to 17psi Max Boost on WRX!

    Started by mustanges, 02-04-2004 05:15 AM
    2 Pages
    1 2
    • Replies: 23
    • Views: 7,707
    05-15-2015, 10:01 PM Go to last post
  8. 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: 923
    05-16-2015, 10:36 PM Go to last post
  9. Blown 06 WRX Engine Need information

    Started by zore, 04-23-2015 03:57 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 512
    zax
    04-24-2015, 02:13 PM Go to last post
  10. Q300 sounds way different than my friends q300?

    Started by Monk_Knight, 04-14-2015 04:42 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 799
    04-28-2015, 09:24 PM Go to last post
    • Replies: 17
    • Views: 498
    05-04-2015, 05:34 PM Go to last post
  11. New 2014 WRX owner

    Started by withoutt, 04-29-2015 12:14 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 684
    05-08-2015, 12:20 PM Go to last post
  12. Cold air intake for 2015 WRX

    Started by Guywrx, 04-17-2015 03:29 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 1,060
    04-19-2015, 07:19 PM Go to last post
  13. Nameless Axelback

    Started by wgokc, 04-29-2015 04:01 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 551
    05-09-2015, 04:24 PM Go to last post
  14. What First Mods?

    Started by GCrane, 04-12-2015 12:45 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 830
    04-29-2015, 07:27 PM Go to last post
  15. Invidia q300

    Started by Raul_wrx, 05-14-2015 01:03 PM
    • Replies: 14
    • Views: 350
    05-15-2015, 06:58 AM Go to last post
  16. 1st Mod questions

    Started by Exhale, 05-22-2015 12:17 PM
    • Replies: 14
    • Views: 462
    05-23-2015, 10:41 AM Go to last post
  17. Question about chipping

    Started by BrosBeforeHossa, 05-22-2015 07:02 PM
    • Replies: 13
    • Views: 281
    05-23-2015, 03:38 AM Go to last post
  18. Boost PSI problem Stage 1

    Started by withoutt, 05-12-2015 06:33 AM
    • Replies: 12
    • Views: 369
    05-29-2015, 09:42 PM Go to last post
  19. Help! 15 wrx intercooler coupler installed

    Started by eaglegreen, 05-02-2015 04:29 PM
    • Replies: 12
    • Views: 369
    05-03-2015, 11:34 AM Go to last post
  20. TD05H-16G Turbo Question

    Started by bneedham, 04-26-2015 12:38 PM
    • Replies: 11
    • Views: 367
    04-29-2015, 01:58 PM Go to last post
  21. Emissions in UT on 2006 WRX

    Started by thatniglayne, 05-15-2015 03:10 PM
    • Replies: 11
    • Views: 287
    05-19-2015, 02:46 PM Go to last post
  22. Exhaust install tips

    Started by ProZach626, 04-26-2015 02:12 PM
    • Replies: 11
    • Views: 429
    04-29-2015, 11:12 AM Go to last post
    • Replies: 11
    • Views: 648
    04-23-2015, 11:48 AM Go to last post
  23. 2002 wrx build

    Started by keiffer259, 05-25-2015 10:15 AM
    • Replies: 10
    • Views: 215
    05-26-2015, 11:13 AM Go to last post
  24. 2015 or 2016 wrx

    Started by Vork, 05-30-2015 08:56 PM
    • Replies: 10
    • Views: 301
    Yesterday, 07:33 AM Go to last post
  25. CAI vs. SRI + hydroshields

    Started by Wrx>>, 05-04-2015 05:35 PM
    • Replies: 10
    • Views: 318
    05-04-2015, 07:13 PM Go to last post
  26. 15 exhaust question

    Started by mizzzike, 05-10-2015 10:27 AM
    • Replies: 10
    • Views: 438
    05-10-2015, 08:31 PM Go to last post
  27. speedometer quit working

    Started by peoplevsme, 05-28-2015 10:35 AM
    • Replies: 10
    • Views: 237
    05-28-2015, 09:10 PM Go to last post
  28. 2015 intercooler vs 2014

    Started by svtfever, 05-10-2015 12:56 PM
    • Replies: 9
    • Views: 370
    05-12-2015, 01:33 PM Go to last post
    • Replies: 9
    • Views: 279
    Yesterday, 09:41 AM Go to last post
  29. New 15 Wrx

    Started by AFCovault08, 05-23-2015 05:05 PM
    • Replies: 9
    • Views: 367
    05-24-2015, 07:08 AM Go to last post
  30. Cobb downpipe "ebay" exhaust?

    Started by 4eat05, 05-14-2015 08:43 AM
    • Replies: 9
    • Views: 381
    05-20-2015, 02:04 PM Go to last post
  31. First engine mod

    Started by SuBiJoE, 05-16-2015 11:28 AM
    • Replies: 9
    • Views: 410
    05-19-2015, 12:14 PM Go to last post

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