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Discussion Starter #1 (Edited)
I came across a post where "GChislett" mentioned a "seat-mod" for the 08's to get more bolster out of them. Nowhere else other then his single post mentioning it have I heard anything about this.

Everyone who has sat in my seats loves them..Even people driving older STi's with the better seats say my 08' seats hold them in better now.

So I figured ide make a quick and dirty write up for anyone who is interested. The mod is 100% reversable if you do not wish to keep it like this, Plus it only takes a minute to do this mod. Also it can be done on the passenger seat as well.

Step 1) Find the large zipper closest to the door. The Bottom of the zipper has about 3 inches of slack that is tucked in the seat, and is kinda tough to get. I used needle nose pliers and tugged on it pretty hard til it came out. (this was the hardest part of the mod)



Step 2) Un-zip the zipper all the way, and open it up, You will see there is some weird plastic covering everything, I have no clue what the plastic does, but it ripped mine outa the way, and its been fine since...There is 3 hooks, connected to springs that are hooked to lil plastic piece, All you have to do is unhook each of them them off the white plastic pieces. You only need to do 1 side to make this mod work

Once that is done, just let them hang there, Might be a goooood idea to put some tape around the end of the hook so it doesnt poke through the back of your seat there will be no noise or issues if you leave them like that (this is what im doing)

Un-hook these hooks off the plastic (there is 3 of them)


Step 3) Zip back the rear of the seat, tuck in the extra slack of zipper, and enjoy your seats as your being held tighter in corners now!

Ive had this mod done for the past 6k miles, and the seats have been perfect, with no stretching or anything..Im not a small, lightweight guy either...

Great mod IMO, makes the seats super comfy, and grips you much better in corners....Oh and its completely reversable!
 

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Re: 08'/09' STi "seat mod" for your bolstering needs

Can you notice a differance just by looking at them? If so could you post a pic of your seat please? Thanks
 

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Discussion Starter #3
Re: 08'/09' STi "seat mod" for your bolstering needs

Seats look the same just by looking at them, you sink in once you sit..

I'll snap a pic..brb
 

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Discussion Starter #4
Re: 08'/09' STi "seat mod" for your bolstering needs

Ok heres the pics of the seats you requested...Its about to rain so the lighting + not that great of a camera doesnt help quality...I tried to get a top angle view to show the backs and if they bolster visually, compared to your non modded seat..

Hope this helps...my cars has dirt and tire marks all over from my downhill mtn bike i stuffed in the hatch :)




 

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Okay I see. Sick thanks I may try this out to see how I like it. Does the back just sink in when you sit in it?
 

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I have looked at this before in my car and decided it was a bad idea because it appeared to let the occupant's weight stress the upholstery seams excessively. I do not want my crappy seats ripping apart even sooner than expected.
 

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Discussion Starter #10
is there an equivalent to doing to the bottom of the seat too? not just the back?
could be something to look into if you have lots of free time on ur hands, Im just scared it may effect something under the seat

sounds like something i'll try very soon~


just afraid it might do something to inadvertently effect the air bags in the seats? :confused:
The back of the seat wont affect anything, and its reversable if u dont like it, only thing that might effect is whatever is under the seats if you try to rig that... possible airbag sensor like the older years ect ect
 

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FWIW I tried this today to see if there would be a noticible difference and indeed there is. I asked my gf to proform a blind test with one seat removed and the other intact and she successfully selected the modified seat as more supportive! :)

Only thing I did different was remove the entire support peice rather than just unhook it.
 

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the alternate on this mod is to forcibly bend the wire supports towards the rear of the car, thereby making a 'deeper' cavity for your torso when you sit. I did this on Day One of ownership....perhaps halfway to the extent of the version listed here but with no downsides.
 

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can you get any pictures of the back of the seat with someone sitting in it. i feel as if the back of the seat will become rounded like a knocked up woman, complete with stretch marks
 

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Discussion Starter #14
the alternate on this mod is to forcibly bend the wire supports towards the rear of the car, thereby making a 'deeper' cavity for your torso when you sit. I did this on Day One of ownership....perhaps halfway to the extent of the version listed here but with no downsides.
that seems like a really good idea, maybe stretch the springs enough so you can still sink in but the back of the seat isnt supporting all your weight..

i'll take a look at it after i install my springs today
 

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I'm not a mechanical genius but it seems to me if someone developed something to extend the lengths of the hooks you'd still retain some of the benefit of whatever that system is there for without compromising whatever reason its there for in the first place.
 

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I'm not a mechanical genius but it seems to me if someone developed something to extend the lengths of the hooks you'd still retain some of the benefit of whatever that system is there for without compromising whatever reason its there for in the first place.

after reading all this that is what i am thinking. a simple chain link would do it, or you could go even lower budget and use some really cheap hanging lamp chain. You know the kind you use to relocate a hanging light above your dinner table :)
 

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after reading all this that is what i am thinking. a simple chain link would do it, or you could go even lower budget and use some really cheap hanging lamp chain. You know the kind you use to relocate a hanging light above your dinner table :)
You're onto something.

A chain link and a double sided hook (S shaped) sounds like the fix eh?
 

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man i will try the cain link idea on monday.....to bad nobody came up with it earlier so I could try it at the track tomorrow
 

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Definitely more supportive on the upper section. The thigh support still needs some work- would be nice if someone can start tearing that out and see what they can do.
 
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