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: Engine Performance FAQ [[[READ ME]]]

    Started by ebr0t, 09-28-2004 06:59 PM
    • Replies: 1
    • Views: 90,851
    09-29-2004, 09:25 PM Go to last post
  2. Sticky Thread Sticky: Subaru Catch All TSB Regarding Modding

    Started by 302@12psi, 08-12-2007 07:43 AM
    • Replies: 8
    • Views: 14,098
    08-12-2007, 04:41 PM Go to last post
  3. Post Sticky Thread Sticky: I want 400WHP!!!1!juan!

    Started by TheJ, 09-27-2009 06:51 AM
    • Replies: 0
    • Views: 22,243
    09-27-2009, 06:51 AM Go to last post
  4. 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: 27,651
    01-02-2011, 02:58 PM Go to last post
  5. Sticky Thread Moved: BIG Intake Manifold FAQ!

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

    Started by zax, 11-20-2012 01:57 PM
    • Replies: 0
    • Views: 4,940
    zax
    11-20-2012, 01:57 PM Go to last post
  7. Sticky Thread Sticky: Intake FAQ

    Started by EJ257, 04-09-2013 09:07 PM
    • Replies: 0
    • Views: 7,322
    04-09-2013, 09:07 PM Go to last post
  8. Sticky Thread Sticky: Blowoff Valve (BOV) FAQ

    Started by Sinister, 07-11-2013 10:55 PM
    • Replies: 2
    • Views: 8,873
    zax
    07-19-2013, 08:13 AM Go to last post
  9. Sticky Thread Sticky: Water/Methanol Injection FAQ

    Started by EJ257, 04-06-2010 08:04 AM
    2 Pages
    1 2
    • Replies: 29
    • Views: 36,263
    01-22-2014, 06:56 PM Go to last post
  10. 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: 47,907
    12-09-2014, 03:43 PM 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: 14,457
    01-10-2015, 09:47 AM Go to last post
  12. 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: 57,781
    01-15-2015, 09:17 AM Go to last post
  13. 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: 54,598
    02-12-2015, 03:16 AM Go to last post
  14. 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: 360,973
    03-22-2015, 03:35 PM Go to last post
  15. 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: 148,702
    03-29-2015, 01:45 PM Go to last post
  16. 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: 950,950
    04-21-2015, 11:59 AM Go to last post
  1. By pass valve

    Started by Mikesrex, 03-22-2015 04:11 AM
    • Replies: 4
    • Views: 255
    03-22-2015, 05:55 AM Go to last post
    • Replies: 11
    • Views: 433
    03-22-2015, 12:14 PM Go to last post
  2. Tuning Question.

    Started by DERKADERKA, 03-23-2015 08:17 PM
    • Replies: 2
    • Views: 288
    03-24-2015, 04:16 AM Go to last post
  3. 08 STI Stock Exhaust vs 11+ WRX Hatch Stock Exhaust

    Started by divide, 03-24-2015 01:00 PM
    • Replies: 3
    • Views: 254
    03-24-2015, 02:01 PM Go to last post
  4. 2015 WRX - What to Mod?

    Started by Sparks729, 03-22-2015 09:16 PM
    • Replies: 6
    • Views: 648
    03-24-2015, 05:11 PM Go to last post
  5. Stage 2 ? 2015 Wrx

    Started by Jmarsh790, 03-25-2015 04:13 AM
    • Replies: 3
    • Views: 554
    03-25-2015, 09:37 AM Go to last post
  6. What mods next

    Started by Daltonp45, 03-23-2015 01:50 PM
    • Replies: 12
    • Views: 464
    03-25-2015, 09:52 AM Go to last post
  7. crank pulley and timng question

    Started by brock00102, 03-26-2015 12:13 PM
    • Replies: 3
    • Views: 279
    03-26-2015, 01:06 PM Go to last post
  8. New Subaru Owner - 2015 WRX Premium

    Started by dsmichals, 03-27-2015 08:13 AM
    • Replies: 8
    • Views: 434
    03-27-2015, 12:51 PM Go to last post
    • Replies: 6
    • Views: 344
    03-27-2015, 06:57 PM Go to last post
  9. ELH install-wrap vs. unwrap?

    Started by subypd, 03-28-2015 09:37 AM
    • Replies: 4
    • Views: 249
    03-28-2015, 05:22 PM Go to last post
  10. Engine rebuild

    Started by voodoostrykr, 03-28-2015 12:09 PM
    • Replies: 13
    • Views: 331
    03-29-2015, 07:25 AM Go to last post
  11. Passing Emissions

    Started by ThatOneGuy18, 03-21-2015 08:14 PM
    • Replies: 5
    • Views: 413
    03-29-2015, 07:30 PM Go to last post
  12. Exhaust Upgrades

    Started by MikeLowrey123, 03-29-2015 06:25 PM
    2 Pages
    1 2
    • Replies: 23
    • Views: 595
    03-30-2015, 04:45 PM Go to last post
  13. Down Pipe/J Pipe

    Started by Jmarsh790, 03-30-2015 09:11 AM
    • Replies: 6
    • Views: 298
    03-31-2015, 05:19 AM Go to last post
  14. new car fmic bov bpv question

    Started by boostinbraun, 03-30-2015 03:36 AM
    2 Pages
    1 2
    • Replies: 16
    • Views: 373
    03-31-2015, 08:20 AM Go to last post
  15. Intake only map

    Started by subidoo87, 03-31-2015 10:37 AM
    • Replies: 2
    • Views: 234
    zax
    03-31-2015, 10:41 AM Go to last post
    • Replies: 4
    • Views: 237
    03-31-2015, 07:40 PM Go to last post
  16. I Need HP and mods!!

    Started by subaruwrx21, 03-30-2015 11:01 PM
    5 Pages
    1 2 3 4 5
    • Replies: 69
    • Views: 1,553
    zax
    04-01-2015, 06:26 AM Go to last post
  17. Fp 18g question

    Started by Derekshep, 03-31-2015 10:32 AM
    • Replies: 13
    • Views: 309
    04-01-2015, 12:00 PM Go to last post
  18. 2015 wrx mods before tuning

    Started by huitt06, 09-07-2014 12:50 PM
    4 Pages
    1 2 3 4
    • Replies: 55
    • Views: 13,340
    04-03-2015, 03:40 PM Go to last post
  19. Muffler choice for custom axleback

    Started by TheGuyWithaSubie, 04-02-2015 01:56 PM
    • Replies: 1
    • Views: 215
    04-03-2015, 07:03 PM Go to last post
  20. Cobb TD05H Turbo

    Started by JaySin, 03-30-2015 11:58 AM
    • Replies: 8
    • Views: 402
    04-04-2015, 02:33 PM Go to last post
  21. how do i make a recirculating line for boost.

    Started by boostinbraun, 04-01-2015 08:37 AM
    • Replies: 5
    • Views: 265
    04-04-2015, 06:44 PM Go to last post
  22. building my 2015 wrx base model

    Started by ronniedb82, 04-05-2015 10:54 PM
    • Replies: 5
    • Views: 446
    04-06-2015, 11:25 AM Go to last post
  23. stage 1 review

    Started by nsibanez, 10-18-2014 10:39 PM
    8 Pages
    1 2 3 4 5 ... 8
    • Replies: 118
    • Views: 5,203
    04-08-2015, 03:14 PM Go to last post
    • Replies: 9
    • Views: 411
    04-09-2015, 07:53 AM Go to last post
  24. Stock Engine and Tranny Limits

    Started by SubiNewbi, 02-04-2009 11:44 AM
    • Replies: 8
    • Views: 3,890
    zax
    04-09-2015, 10:11 AM Go to last post
  25. questions about mods

    Started by theprodigy801, 04-05-2015 10:21 PM
    • Replies: 10
    • Views: 389
    04-09-2015, 11:28 AM Go to last post
    • Replies: 8
    • Views: 649
    04-11-2015, 12:36 PM Go to last post
  26. 2014 Hatch CBE in 2015 WRX

    Started by strudinox, 04-10-2015 10:15 PM
    • Replies: 6
    • Views: 265
    04-11-2015, 09:59 PM Go to last post
  27. E85 fuel

    Started by CoCoTwrx, 04-11-2015 03:09 PM
    • Replies: 2
    • Views: 221
    04-12-2015, 02:36 PM Go to last post
  28. Noob Question: Need help with J-Pipes for FA20

    Started by DanaD3x, 02-27-2015 04:58 PM
    • Replies: 8
    • Views: 511
    zax
    04-13-2015, 09:52 AM Go to last post
  29. New engine suggest

    Started by CoCoTwrx, 04-12-2015 04:01 PM
    • Replies: 5
    • Views: 269
    04-13-2015, 12:20 PM Go to last post
  30. Engine building queations

    Started by XJman, 04-13-2015 03:16 PM
    • Replies: 7
    • Views: 249
    04-13-2015, 06:37 PM Go to last post

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