Differences between 05 and 06 STi
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This is a discussion on Differences between 05 and 06 STi within the STi Technical Forum forums, part of the Tech & Modifying & General Repairs category; OK...here is the roll up of the replies I recieved for the changes to the 06. If you see a ...

  1. #1
    Moderator YBNormal07's Avatar
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    Differences between 05 and 06 STi

    OK...here is the roll up of the replies I recieved for the changes to the 06. If you see a mistake or want to add something, just reply to this sticky and I'll edit this. Thanks in advance!

    So far we have:

    Appearance:
    Front lights are smoked
    Lower profile front hood scoop
    Daytime running lights (yuck)
    STi changed to STI -- but only for press clippings. Remains STi on the car.

    Interior
    Headlight adjusting switch is now an up/down wheel
    Embedded Antenna moved to the top of rear window
    Optional home link button
    Stereo is now standard (not sure if this is different from 05. It was optional for 04)
    Front seats have seatback netting on backs

    Engine
    Windshield fluid reservoir relocated to front of battery, next to radiator
    Large fuse box
    Liquid filled engine mounts

    Aerodynamics:
    Roof vane spoiler-directs more air to the larger wing on the trunk
    Lower profile front hood scoop
    Rear underbody diffuser
    Side sill spoilers

    Powertrain:
    Steering wheel angle sensor input to the DCCD
    Yaw Rate sensor (same for 05 I believe)
    DCCD distribution ration changed from 35:65 to 41:59 (note..this will be a very good improvement)
    Cam-type Mechanical limited slip center diff vs the older hyraulic unit (faster response!!)

    Suspension:
    Struts are calibrated different now for smoother ride. (someone please confirm this)

    Transmission:
    Carbon-reinforced synchros on 4th, 5th and 6th gears

    Exterior
    Redesigned front clip with integrated lip and u-bar for towing
    Rear tailights are now more Altezza like
    Rear subaru emblem (blue with stars)
    Front brake vents (technically, just enlarged/repositioned)

    Safety:
    Weight sensing passenger side air bag
    Distance from steering wheel sensor for drivers side airbag
    Dash mounted passenger air bag indicator (to install a gauge pod in this location now, you will need to remove the plastic housing on the airbag dash mounted indicator and leave it on the inside of the dash after you install your gauges to avoid an airbag warning light on the gauge cluster)
    Collapsible driver pedals in the event of a crash

    Utility
    Thicker in-trunk floor mat/carpet.

    Driving impressions:
    Steering feel is lighter
    Ride is smoother, more refined, and less jittery

    Possibly:
    Different straight projecter headlights vs reflecting projector headlights in the 05???



    Thanks to:
    whitakerSTi
    BlkWRXWag
    Digitalfiend
    hellafastWRX
    amukaoen
    jamie007
    tossty
    SubieGalRacing
    Last edited by YBNormal07; 10-01-2005 at 02:51 PM.
    tEh PriUs=teH faSTah!@@!
    SOLD: 05 SWP Legacy GT Limited 5MT, 13.3ish@105 (stage 2) crappy stock clutch
    SOLD: 04 MPS/SW WRX Sti. 12.971 @ 103.97 (stock)
    278 AWHP/283 AWT, Catback exhaust
    306 AWHP/341 AWT, Stage 2
    (Scott) Moderator-STi, Drag Racing, Car Purchasing, and Tutorial Forums

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  3. #2
    Registered User Rick Schu's Avatar
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    Quote Originally Posted by YBNormal07
    Deletion of pre-cat (did the STi get the air pump system like the WRX too? Someone please confirm)
    The STi never had a cat in the uppipe. And it doesn't get the air pump.

  4. #3
    Moderator YBNormal07's Avatar
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    Rick...no idea why I put that in. I know all about the cats in the STi. Must've been a cut and paste error. thanks!
    tEh PriUs=teH faSTah!@@!
    SOLD: 05 SWP Legacy GT Limited 5MT, 13.3ish@105 (stage 2) crappy stock clutch
    SOLD: 04 MPS/SW WRX Sti. 12.971 @ 103.97 (stock)
    278 AWHP/283 AWT, Catback exhaust
    306 AWHP/341 AWT, Stage 2
    (Scott) Moderator-STi, Drag Racing, Car Purchasing, and Tutorial Forums

  5. #4
    Registered User jamie007's Avatar
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    Quote Originally Posted by YBNormal07
    Optional home link button (garage door opener..no change from 05 though, although the SOA website doesn't show this as an option. Does anyone have this on their STi?)

    Is the stereo still optional?
    My 06' came with the optional homelink and the stereo is standard, 140 watts. Although I yanked the factory stereo a week after I got it.
    Jamie
    2009 WRX Prem Hatch:
    Cobb stage II, Kartboy SS, SPT Catback, Cobb DP, WL Sways, Perrin/AVO Endlinks, Conti DWS

    Previous rides:
    99 Civic Si (RIP), 2004 WRX, 2006 STI

  6. #5
    Moderator YBNormal07's Avatar
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    Thanks Jamie!
    tEh PriUs=teH faSTah!@@!
    SOLD: 05 SWP Legacy GT Limited 5MT, 13.3ish@105 (stage 2) crappy stock clutch
    SOLD: 04 MPS/SW WRX Sti. 12.971 @ 103.97 (stock)
    278 AWHP/283 AWT, Catback exhaust
    306 AWHP/341 AWT, Stage 2
    (Scott) Moderator-STi, Drag Racing, Car Purchasing, and Tutorial Forums

  7. #6
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    Dash mounted passenger air bag indicator (can't put in dash mounted tripod gauges any

    Dash mounted passenger air bag indicator (can't put in dash mounted tripod gauges anymore!!)


    You still be able to install tripod gauges, I did it on my car (Defy EGT, Boost, and Oil Pressure) ) but need to leave the dash mounted passenger indicator inside the dash. Remove it from the plastic housing and leave it inside the dash or you will get the airbag warning light on the cluster.


  8. #7
    Moderator YBNormal07's Avatar
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    Thanks tossty. I'll edit accordingly.
    tEh PriUs=teH faSTah!@@!
    SOLD: 05 SWP Legacy GT Limited 5MT, 13.3ish@105 (stage 2) crappy stock clutch
    SOLD: 04 MPS/SW WRX Sti. 12.971 @ 103.97 (stock)
    278 AWHP/283 AWT, Catback exhaust
    306 AWHP/341 AWT, Stage 2
    (Scott) Moderator-STi, Drag Racing, Car Purchasing, and Tutorial Forums

  9. #8
    Registered User SubieGalRacing's Avatar
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    Interior:

    rear seatback net built in

    trunk has a REAL HEAVY DUTY CARPET LINER
    (not that crappy little pad of old)


    photo:


    More Photos:
    http://www.subiegal.com/images/event...ru_impreza.htm


    jamie

  10. #9
    Moderator YBNormal07's Avatar
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    Thanks Jamie. Um..that is the trunk of a USDM 2006 STi? Is the flap for the access hatch to the spray bottle somewhere just out of the picture on the right? Where is the rear seat back net? I can't see it in the pic. I used the walmart cheapy nets and attached them to the trunk hinge pinion bars. Worked like a charm. Still use the same net in my Legacy. Thanks for the info! Nice site BTW.
    Last edited by YBNormal07; 09-29-2005 at 12:56 PM.
    tEh PriUs=teH faSTah!@@!
    SOLD: 05 SWP Legacy GT Limited 5MT, 13.3ish@105 (stage 2) crappy stock clutch
    SOLD: 04 MPS/SW WRX Sti. 12.971 @ 103.97 (stock)
    278 AWHP/283 AWT, Catback exhaust
    306 AWHP/341 AWT, Stage 2
    (Scott) Moderator-STi, Drag Racing, Car Purchasing, and Tutorial Forums

  11. #10
    Registered User jamie007's Avatar
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    Quote Originally Posted by YBNormal07
    Thanks Jamie. Um..that is the trunk of a USDM 2006 STi? Is the flap for the access hatch to the spray bottle somewhere just out of the picture on the right? Where is the rear seat back net? I can't see it in the pic. I used the walmart cheapy nets and attached them to the trunk hinge pinion bars. Worked like a charm. Still use the same net in my Legacy. Thanks for the info! Nice site BTW.

    The rear seatback net is on the back of the passenger front seat, not in the trunk. The access to the IC sprayer resevior is on the far right side of the trunk out of view in the pic. And I just read in Motortrend that there are carbon-reinforced syncronizers for 4th, 5th, and 6th gear.
    Jamie
    2009 WRX Prem Hatch:
    Cobb stage II, Kartboy SS, SPT Catback, Cobb DP, WL Sways, Perrin/AVO Endlinks, Conti DWS

    Previous rides:
    99 Civic Si (RIP), 2004 WRX, 2006 STI

  12. #11
    Registered User AwdTurboWrx's Avatar
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    stereo was also standard on the 05, so thats not new on the 06 sti. The headlights are different on 06 sti, not just the look but your right about them being projectors.
    The Ghosts of Zooph and Sarcasmo Will haunt CLUBWRX forever!!!

  13. #12
    Registered User Lipster's Avatar
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    Need confirmed - in impreza brochure?

    I believe I read double cone synchros for first gear and triple for second. Was the '05 like this?
    Hawkeye - 808
    2006 WRB Wagon
    mod list http://www.clubwrx.net/forums/2188188-post359.html - hopefully.

  14. #13
    Moderator YBNormal07's Avatar
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    Quote Originally Posted by Lipster
    I believe I read double cone synchros for first gear and triple for second. Was the '05 like this?
    Not sure. Anyone confirm?
    tEh PriUs=teH faSTah!@@!
    SOLD: 05 SWP Legacy GT Limited 5MT, 13.3ish@105 (stage 2) crappy stock clutch
    SOLD: 04 MPS/SW WRX Sti. 12.971 @ 103.97 (stock)
    278 AWHP/283 AWT, Catback exhaust
    306 AWHP/341 AWT, Stage 2
    (Scott) Moderator-STi, Drag Racing, Car Purchasing, and Tutorial Forums

  15. #14
    Moderator YBNormal07's Avatar
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    Quote Originally Posted by AwdTurboWrx
    stereo was also standard on the 05, so thats not new on the 06 sti. The headlights are different on 06 sti, not just the look but your right about them being projectors.

    So they are straight projection now? No reflector?
    tEh PriUs=teH faSTah!@@!
    SOLD: 05 SWP Legacy GT Limited 5MT, 13.3ish@105 (stage 2) crappy stock clutch
    SOLD: 04 MPS/SW WRX Sti. 12.971 @ 103.97 (stock)
    278 AWHP/283 AWT, Catback exhaust
    306 AWHP/341 AWT, Stage 2
    (Scott) Moderator-STi, Drag Racing, Car Purchasing, and Tutorial Forums

  16. #15
    Registered User AwdTurboWrx's Avatar
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    yup, projectors now.
    The Ghosts of Zooph and Sarcasmo Will haunt CLUBWRX forever!!!

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