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, 06:28 PM

  1. Sticky Thread Sticky: $5 and 5 minutes to a better running car :)

    Started by Big Sky WRX, 05-06-2006 04:02 PM
    9 Pages
    1 2 3 4 5 ... 9
    • Replies: 123
    • Views: 48,531
    01-26-2015, 06:37 PM 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 08:34 AM
    792 Pages
    1 2 3 4 5 ... 792
    • Replies: 11,865
    • Views: 913,202
    01-18-2015, 02:42 PM Go to last post
  3. Sticky Thread Moved: BIG Intake Manifold FAQ!

    Started by zax, 11-20-2012 02:51 PM
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  4. Sticky Thread Sticky: Blowoff Valve (BOV) FAQ

    Started by Sinister, 07-11-2013 11:55 PM
    • Replies: 2
    • Views: 7,501
    zax
    07-19-2013, 09:13 AM Go to last post
  5. Sticky Thread Sticky: Engine Performance FAQ [[[READ ME]]]

    Started by ebr0t, 09-28-2004 07:59 PM
    • Replies: 1
    • Views: 89,185
    09-29-2004, 10:25 PM Go to last post
  6. Sticky Thread Sticky: Exhaust FAQ

    Started by EJ257, 03-30-2010 04:30 PM
    10 Pages
    1 2 3 4 5 ... 10
    • Replies: 135
    • Views: 51,899
    01-15-2015, 10:17 AM Go to last post
  7. Sticky Thread Sticky: Exhaust Video/Sound Clips

    Started by TurnWRX, 03-29-2004 11:37 PM
    38 Pages
    1 2 3 4 5 ... 38
    • Replies: 555
    • Views: 351,180
    06-27-2014, 02:38 PM Go to last post
  8. Sticky Thread Sticky: First Modifications - what to do and not to do

    Started by mycologist, 01-25-2010 09:05 PM
    14 Pages
    1 2 3 4 5 ... 14
    • Replies: 197
    • Views: 131,033
    07-20-2014, 07:02 AM Go to last post
  9. Sticky Thread Sticky: Fuel System 101 FAQ

    Started by adam@kronosperformance, 06-30-2011 12:16 PM
    • Replies: 7
    • Views: 13,134
    01-10-2015, 10:47 AM Go to last post
  10. Post Sticky Thread Sticky: I want 400WHP!!!1!juan!

    Started by TheJ, 09-27-2009 07:51 AM
    • Replies: 0
    • Views: 21,283
    09-27-2009, 07:51 AM Go to last post
  11. Sticky Thread Sticky: Intake FAQ

    Started by EJ257, 04-09-2013 10:07 PM
    • Replies: 0
    • Views: 6,285
    04-09-2013, 10:07 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 06:35 AM
    6 Pages
    1 2 3 4 5 ... 6
    • Replies: 85
    • Views: 26,684
    01-02-2011, 03:58 PM Go to last post
  13. Sticky Thread Sticky: Subaru Catch All TSB Regarding Modding

    Started by 302@12psi, 08-12-2007 08:43 AM
    • Replies: 8
    • Views: 13,585
    08-12-2007, 05:41 PM Go to last post
  14. Sticky Thread Sticky: The BIG Intake Manifold/TGV/Phenolic Spacer FAQ!

    Started by zax, 11-20-2012 02:57 PM
    • Replies: 0
    • Views: 4,236
    zax
    11-20-2012, 02:57 PM Go to last post
  15. Sticky Thread Sticky: WARNING FOR BUYING CATTED DOWNPIPES!!!

    Started by Sinister, 10-27-2010 12:54 PM
    7 Pages
    1 2 3 4 5 ... 7
    • Replies: 93
    • Views: 42,560
    12-09-2014, 04:43 PM Go to last post
  16. Sticky Thread Sticky: Water/Methanol Injection FAQ

    Started by EJ257, 04-06-2010 09:04 AM
    2 Pages
    1 2
    • Replies: 29
    • Views: 33,600
    01-22-2014, 07:56 PM Go to last post
  1. 05 ringland issue?

    Started by substi555, 12-18-2014 10:18 PM
    • Replies: 6
    • Views: 239
    12-19-2014, 03:12 PM Go to last post
  2. 2008 WRX - how much power can it handle/produce?

    Started by xtremez2k, 06-07-2010 01:23 AM
    4 Pages
    1 2 3 4
    • Replies: 59
    • Views: 16,709
    01-02-2015, 02:17 AM Go to last post
  3. 2008+ SPT Exhaust Review

    Started by j6neal1, 07-16-2012 12:20 PM
    • Replies: 8
    • Views: 1,717
    01-05-2015, 03:01 PM Go to last post
  4. 2013 WRX exhaust

    Started by Whitt11, 12-25-2014 12:28 PM
    • Replies: 0
    • Views: 160
    12-25-2014, 12:28 PM Go to last post
  5. 2015 wrx mods before tuning

    Started by huitt06, 09-07-2014 01:50 PM
    4 Pages
    1 2 3 4
    • Replies: 48
    • Views: 7,092
    01-17-2015, 11:07 AM Go to last post
  6. 2015 WRX Subispeed Quad Exhaust

    Started by Zance, 10-27-2014 06:53 PM
    • Replies: 14
    • Views: 1,040
    12-24-2014, 06:23 AM Go to last post
  7. ? About my mixed messages regarding my build.

    Started by Rhawley, 01-25-2015 01:53 AM
    • Replies: 14
    • Views: 252
    01-26-2015, 06:50 AM Go to last post
  8. AEM CAI FOR 2015 WRX

    Started by japangloko, 12-21-2014 07:56 PM
    • Replies: 4
    • Views: 338
    12-22-2014, 06:39 AM Go to last post
  9. After turbo swap question

    Started by frenziedcage, 01-09-2015 10:18 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 523
    01-15-2015, 03:20 PM Go to last post
  10. Air intake elbow

    Started by Wrx2002nashville, 01-25-2015 01:15 AM
    • Replies: 4
    • Views: 143
    01-25-2015, 04:48 PM Go to last post
    • Replies: 3
    • Views: 181
    12-18-2014, 09:04 PM Go to last post
  11. AVCS on an EJ20???

    Started by WRXWGN2NR, 03-03-2008 05:58 PM
    • Replies: 5
    • Views: 1,021
    12-30-2014, 10:41 AM Go to last post
  12. AVO TOP MOUNT INTERCOOLER - 2015 WRX

    Started by '15BoxerHarvWrx, 12-24-2014 12:51 AM
    • Replies: 1
    • Views: 300
    12-24-2014, 07:16 AM Go to last post
  13. blown turbo

    Started by will_cyr, 01-29-2015 08:57 PM
    • Replies: 4
    • Views: 173
    01-29-2015, 09:56 PM Go to last post
  14. boost taper and power ?

    Started by wrx96, 01-01-2015 12:45 AM
    • Replies: 4
    • Views: 241
    01-06-2015, 10:24 AM Go to last post
  15. Moved: BOV Discussion

    Started by Whitt11, 01-18-2015 05:00 PM
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  16. Bugeye WRX w/ previous mods

    Started by AuzzyP, 01-20-2015 07:48 AM
    • Replies: 4
    • Views: 217
    01-20-2015, 11:10 AM Go to last post
  17. Building Uppipe

    Started by TooMuchSauce, 01-25-2015 09:12 PM
    • Replies: 1
    • Views: 147
    zax
    01-25-2015, 10:04 PM Go to last post
  18. Buying a Sti cat back for my wrx!

    Started by ryan909, 12-21-2014 08:10 PM
    • Replies: 5
    • Views: 235
    12-21-2014, 10:23 PM Go to last post
  19. Car hesitating to go

    Started by Daltonp45, 01-29-2015 07:32 PM
    2 Pages
    1 2
    • Replies: 19
    • Views: 246
    Today, 01:01 AM Go to last post
  20. Car Running Strange in low RPMs

    Started by skudda33, 01-06-2015 08:24 AM
    3 Pages
    1 2 3
    • Replies: 32
    • Views: 882
    01-08-2015, 01:35 PM Go to last post
  21. Catback exhaust

    Started by Wrx>>, 11-24-2014 05:16 PM
    2 Pages
    1 2
    • Replies: 21
    • Views: 1,037
    12-23-2014, 07:09 PM Go to last post
  22. Catted or catless down pipe?

    Started by 19transam81, 01-28-2015 08:58 PM
    2 Pages
    1 2
    • Replies: 19
    • Views: 342
    Yesterday, 03:06 PM Go to last post
  23. closed deck block??

    Started by wrx96, 12-24-2014 04:22 AM
    • Replies: 2
    • Views: 203
    zax
    12-24-2014, 09:59 PM Go to last post
  24. Cobb Access Port Launch Control Question

    Started by 14wrxboy, 01-02-2015 03:12 PM
    • Replies: 3
    • Views: 272
    01-03-2015, 12:40 PM Go to last post
  25. colorado wrx owners!

    Started by mk3soupsoup, Yesterday 09:22 PM
    • Replies: 1
    • Views: 138
    Today, 09:06 AM Go to last post
  26. Custom Fab Recirculating Downpipe Question

    Started by thump88, 01-08-2015 07:10 PM
    • Replies: 13
    • Views: 388
    01-15-2015, 10:48 AM Go to last post
  27. Cut only the muffler off

    Started by moparboy, 01-22-2015 09:36 AM
    2 Pages
    1 2
    • Replies: 19
    • Views: 433
    01-24-2015, 03:42 PM Go to last post
  28. Down Pipe ? divorced wastegate -vs- Reg

    Started by bthomas6674, 05-17-2005 11:10 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 1,842
    01-18-2015, 02:57 PM Go to last post
  29. Engine cutoff at ~115 mph?

    Started by TheCLTSTiG, 12-22-2014 10:53 PM
    • Replies: 8
    • Views: 298
    12-23-2014, 11:45 AM Go to last post
  30. Engine mod ideas

    Started by eleazarhood, 01-27-2015 10:02 PM
    • Replies: 7
    • Views: 271
    Yesterday, 07:13 PM Go to last post
  31. Engine rebuild

    Started by SlowSleeper, 01-07-2015 07:01 AM
    • Replies: 6
    • Views: 291
    01-07-2015, 01:54 PM Go to last post
  32. ETS 2015 Subaru WRX Air Intake Kit

    Started by wgokc, Yesterday 06:18 PM
    • Replies: 6
    • Views: 176
    Today, 07:26 AM Go to last post
  33. ETS 2015 WRX/STI Axle Back Exhaust System

    Started by wgokc, 12-16-2014 06:48 PM
    • Replies: 8
    • Views: 593
    12-21-2014, 08:39 PM Go to last post
  34. Exhaust fitment?

    Started by Champ10n, 01-10-2015 04:14 PM
    • Replies: 4
    • Views: 235
    01-22-2015, 11:44 AM Go to last post

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