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.

Sub-Forums Threads / Posts  Last Post

  1. Engine Performance Discussion Specific to Higher Altitudes

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    Forum Statistics:

    • Threads: 49
    • Posts: 687

    Last Post:

    Car stalling? Go to last post

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    06-26-2016, 10:23 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: 72,564
    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
    797 Pages
    1 2 3 4 5 ... 797
    • Replies: 11,944
    • Views: 1,092,359
    07-06-2016, 12:04 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: 14,686
    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: 98,338
    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: 140
    • Views: 79,746
    06-21-2016, 11:47 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: 567
    • Views: 399,058
    11-20-2015, 08:28 AM 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
    16 Pages
    1 2 3 4 5 ... 16
    • Replies: 235
    • Views: 235,138
    11-24-2015, 08:58 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: 19,797
    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: 25,928
    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: 10,869
    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: 30,306
    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: 15,389
    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: 7,339
    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: 70,215
    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: 47,836
    01-22-2014, 06:56 PM Go to last post
  1. 2.2K Ohm Resistor Mod

    Started by KurleeDaddeeWRX, 09-01-2002 03:34 PM
    6 Pages
    1 2 3 4 5 ... 6
    • Replies: 86
    • Views: 76,270
    08-11-2016, 09:04 AM Go to last post
  2. 2002 WRX Build

    Started by Logan114, 08-10-2016 01:32 AM
    • Replies: 1
    • Views: 151
    08-10-2016, 06:52 AM Go to last post
    • Replies: 5
    • Views: 266
    07-21-2016, 01:30 PM Go to last post
    • Replies: 10
    • Views: 230
    07-16-2016, 02:17 PM Go to last post
  3. 2014 wrx

    Started by jgingras88, 07-30-2016 10:33 PM
    • Replies: 2
    • Views: 155
    07-31-2016, 12:57 PM Go to last post
  4. 2015+ WRX w/ GRIMSPEED Intake

    Started by SaltySteel6, 07-30-2016 03:33 AM
    • Replies: 2
    • Views: 244
    08-01-2016, 06:56 AM Go to last post
  5. 2016 WRX SPT (STI Performance Exhaust) question

    Started by dhelm, 07-06-2016 07:57 AM
    2 Pages
    1 2
    • Replies: 20
    • Views: 782
    07-24-2016, 07:56 PM Go to last post
  6. 2017 CVT WRX exhaust question

    Started by frognogx443, 08-13-2016 10:51 PM
    • Replies: 0
    • Views: 202
    08-13-2016, 10:51 PM Go to last post
  7. 2017 WRX Cobb Accessport

    Started by AceVL, 08-04-2016 09:17 AM
    2 Pages
    1 2
    • Replies: 20
    • Views: 548
    Today, 01:28 PM Go to last post
  8. Binjoau's 09 WRX - Hybrid EJ257 Swap Thread

    Started by binjoau, 10-10-2010 08:47 AM
    4 Pages
    1 2 3 4
    • Replies: 53
    • Views: 7,173
    08-05-2016, 10:04 PM Go to last post
  9. Can a lightened crank pulley cause phantom misfires?

    Started by purexsamx360, 07-07-2016 07:07 AM
    2 Pages
    1 2
    • Replies: 27
    • Views: 551
    07-11-2016, 05:36 AM Go to last post
  10. Charge pipe worth it?

    Started by SubiNub, 05-25-2015 10:25 AM
    • Replies: 14
    • Views: 5,033
    08-06-2016, 09:10 AM Go to last post
  11. Cobb J-Pipe install

    Started by w3rdup!, 07-28-2016 06:28 PM
    • Replies: 8
    • Views: 224
    07-29-2016, 05:32 AM Go to last post
  12. Considering going Stage 2

    Started by ThomasAndrews, 08-08-2016 10:11 AM
    2 Pages
    1 2
    • Replies: 16
    • Views: 401
    08-09-2016, 06:21 AM Go to last post
  13. Gotta add the mods

    Started by Bamaboy1988, 07-17-2016 12:04 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 335
    07-17-2016, 05:55 PM Go to last post
  14. IAG Competition AOS or Crawford AOS for STI 2017

    Started by flavaflave, 07-06-2016 01:06 AM
    2 Pages
    1 2
    • Replies: 16
    • Views: 515
    07-11-2016, 12:42 PM Go to last post
  15. Invidia N1 Exhaust??

    Started by tylermcg, 07-15-2016 03:54 PM
    • Replies: 3
    • Views: 243
    07-17-2016, 01:24 PM Go to last post
  16. Midpipe Questions

    Started by ike206, 07-14-2016 02:22 PM
    • Replies: 5
    • Views: 260
    07-17-2016, 07:50 PM Go to last post
  17. Nameless Axleback Question on 2017 WRX

    Started by WRXLex, 08-21-2016 11:53 PM
    • Replies: 3
    • Views: 153
    Yesterday, 02:37 AM Go to last post
    • Replies: 0
    • Views: 103
    08-01-2016, 04:54 PM Go to last post
  18. non-removable hose clamps in 2017 STi

    Started by Lightblind, 08-01-2016 08:37 PM
    • Replies: 2
    • Views: 175
    08-08-2016, 10:21 PM Go to last post
  19. Noob wanting to know some HP gains.

    Started by Movingblueorb86, 07-07-2016 07:33 AM
    • Replies: 11
    • Views: 471
    07-12-2016, 09:17 PM Go to last post
  20. Oil catch can?

    Started by Hankscorpio, 04-19-2016 06:25 PM
    • Replies: 12
    • Views: 584
    08-20-2016, 06:33 PM Go to last post
  21. Question about STi Motor

    Started by SheepyHollow, 07-10-2016 11:05 PM
    • Replies: 2
    • Views: 265
    07-11-2016, 09:47 AM Go to last post
  22. Quick exhaust question

    Started by maxc2001, 08-20-2016 05:04 PM
    • Replies: 2
    • Views: 138
    08-20-2016, 07:39 PM Go to last post
  23. Ready to mod, or am I?

    Started by FavelaWRX, 08-07-2016 06:19 AM
    • Replies: 9
    • Views: 227
    08-07-2016, 07:35 PM Go to last post
  24. Rs to wrx?

    Started by schodge2000, 07-16-2016 02:37 PM
    • Replies: 3
    • Views: 269
    07-18-2016, 04:04 AM Go to last post
  25. Stage 2 Reviews??

    Started by mjmwrx, 08-05-2016 02:24 PM
    2 Pages
    1 2
    • Replies: 16
    • Views: 467
    08-22-2016, 01:46 PM Go to last post
  26. Steam speed turbo 2016 wrx

    Started by breckiam, 07-19-2016 10:09 AM
    • Replies: 9
    • Views: 384
    07-20-2016, 04:14 PM Go to last post
  27. stock 02. turbo replacement

    Started by 02Skrrrt, Yesterday 12:55 AM
    • Replies: 8
    • Views: 138
    Yesterday, 11:55 AM Go to last post
  28. Strange behavior post-tune

    Started by Kovalsky, 08-13-2016 01:18 PM
    • Replies: 3
    • Views: 176
    08-13-2016, 01:51 PM Go to last post
  29. Turbo swap help

    Started by Unboundfurball, 08-02-2016 02:45 PM
    2 Pages
    1 2
    • Replies: 17
    • Views: 316
    08-22-2016, 06:20 AM Go to last post
  30. Upgrading the ej207 to spec C

    Started by mtthws1, 08-12-2016 08:52 AM
    • Replies: 1
    • Views: 132
    08-12-2016, 08:59 AM Go to last post
  31. Upgrading Top mount intercooler question

    Started by Bug Eye Trev, 08-12-2016 05:22 PM
    • Replies: 0
    • Views: 149
    08-12-2016, 05:22 PM Go to last post
  32. vf22 Question

    Started by Booost, 07-10-2003 01:26 PM
    • Replies: 13
    • Views: 765
    08-05-2016, 06:24 AM Go to last post

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