# MIL.SPEC Evo VIII-IX Throttle Body Seals (Got Boost leaks?)
**URL:** https://forums.speedlife.net/t/mil-spec-evo-viii-ix-throttle-body-seals-got-boost-leaks/63721
**Category:** Vendor Marketplace
**Created:** [February 27, 2009, 10:18am UTC](https://forums.speedlife.net/t/mil-spec-evo-viii-ix-throttle-body-seals-got-boost-leaks/63721 "2009-02-27T10:18:45Z")
**Posts on this page:** 20
**Page:** 1
### Author:  [@4g63girl](https://forums.speedlife.net/u/4g63girl)
#### Post date: [February 27, 2009, 10:18am UTC](https://forums.speedlife.net/t/mil-spec-evo-viii-ix-throttle-body-seals-got-boost-leaks/63721/1 "2009-02-27T10:18:45Z")
[](http://www.streettunedmotorsports.com/)
We recently swapped in these MIL.SPEC seals replacing the leaky, OEM seals on an Evo VIII.
We did a pull on the dyno with the OEM seals, then put in the new seals and picked up 20 whp and 20 ft lbs!!!
Holy boost leak Batman! :bloated:
I was astounded by those numbers, so I wanted to share with you Evo owners that we have a bunch of these here in stock.
$22 for 20hp and an hour worth of work… Not a bad deal.
[](http://www.streettunedmotorsports.com/parts/milspec_evo_throttle_body_shaft_seals.htm)
Click the picture for more info.
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### Author:  [@LZ1](https://forums.speedlife.net/u/LZ1)
#### Post date: [February 27, 2009, 10:20am UTC](https://forums.speedlife.net/t/mil-spec-evo-viii-ix-throttle-body-seals-got-boost-leaks/63721/2 "2009-02-27T10:20:28Z")
So you found the exact same seal used in military applications? or you got a seal made and are claiming its mil spec because of materials involved?
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### Author:  [@system](https://forums.speedlife.net/u/system)
#### Post date: [February 27, 2009, 10:23am UTC](https://forums.speedlife.net/t/mil-spec-evo-viii-ix-throttle-body-seals-got-boost-leaks/63721/3 "2009-02-27T10:23:06Z")
Looks to be a misleading brand name.
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### Author:  [@Nikuk](https://forums.speedlife.net/u/Nikuk)
#### Post date: [February 27, 2009, 10:24am UTC](https://forums.speedlife.net/t/mil-spec-evo-viii-ix-throttle-body-seals-got-boost-leaks/63721/4 "2009-02-27T10:24:18Z")
I didn’t know the US Military ran 4G63s…
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### Author:  [@Jeller](https://forums.speedlife.net/u/Jeller)
#### Post date: [February 27, 2009, 10:30am UTC](https://forums.speedlife.net/t/mil-spec-evo-viii-ix-throttle-body-seals-got-boost-leaks/63721/5 "2009-02-27T10:30:41Z")
I did these on my evo after performing a boost leak test, Funny how such a little part can leak soo much.
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### Author:  [@05OrangeSS](https://forums.speedlife.net/u/05OrangeSS)
#### Post date: [February 27, 2009, 10:58am UTC](https://forums.speedlife.net/t/mil-spec-evo-viii-ix-throttle-body-seals-got-boost-leaks/63721/6 "2009-02-27T10:58:19Z")
That is actually the name. Quick search on evom and you’d find it. Pretty sure emery doesn’t make these. Good product none the less.
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### Author:  [@Firehawk853](https://forums.speedlife.net/u/Firehawk853)
#### Post date: [February 27, 2009, 11:02am UTC](https://forums.speedlife.net/t/mil-spec-evo-viii-ix-throttle-body-seals-got-boost-leaks/63721/7 "2009-02-27T11:02:29Z")
> [@LZ](#):
>
> So you found the exact same seal used in military applications? or you got a seal made and are claiming its mil spec because of materials involved?
LOL new M1A Tank powered by the 4G63T.
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### Author:  [@4g63girl](https://forums.speedlife.net/u/4g63girl)
#### Post date: [February 27, 2009, 11:06am UTC](https://forums.speedlife.net/t/mil-spec-evo-viii-ix-throttle-body-seals-got-boost-leaks/63721/8 "2009-02-27T11:06:17Z")
Nice. :roflpicard: That’s just the name of the product, kids.
There, found their product logo.
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### Author:  [@system](https://forums.speedlife.net/u/system)
#### Post date: [February 27, 2009, 11:11am UTC](https://forums.speedlife.net/t/mil-spec-evo-viii-ix-throttle-body-seals-got-boost-leaks/63721/9 "2009-02-27T11:11:06Z")
they aren’t to blame. MIL SPEC is a designation giving something built to military specifications, that “product name” was meant to imply/deceive.
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### Author:  [@psphinx81](https://forums.speedlife.net/u/psphinx81)
#### Post date: [February 27, 2009, 11:12am UTC](https://forums.speedlife.net/t/mil-spec-evo-viii-ix-throttle-body-seals-got-boost-leaks/63721/10 "2009-02-27T11:12:21Z")
:tup: i use these seals in my TB
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### Author:  [@4g63girl](https://forums.speedlife.net/u/4g63girl)
#### Post date: [February 27, 2009, 11:16am UTC](https://forums.speedlife.net/t/mil-spec-evo-viii-ix-throttle-body-seals-got-boost-leaks/63721/11 "2009-02-27T11:16:48Z")
> [@mafdark](#):
>
> they aren’t to blame. MIL SPEC is a designation giving something built to military specifications, that “product name” was meant to imply/deceive.
True.
But I don’t care if they are called POOP.SPEC… if it fixes a boost leak and finds 20hp I’m happy! :grouphug:
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### Author:  [@TrueBlue](https://forums.speedlife.net/u/TrueBlue)
#### Post date: [February 27, 2009, 11:18am UTC](https://forums.speedlife.net/t/mil-spec-evo-viii-ix-throttle-body-seals-got-boost-leaks/63721/12 "2009-02-27T11:18:43Z")
> [@mafdark](#):
>
> they aren’t to blame. MIL SPEC is a designation giving something built to military specifications, that “product name” was meant to imply/deceive.
Thank you!
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### Author:  [@EVOLUTION\_VIII\_MR](https://forums.speedlife.net/u/EVOLUTION_VIII_MR)
#### Post date: [February 27, 2009, 11:40am UTC](https://forums.speedlife.net/t/mil-spec-evo-viii-ix-throttle-body-seals-got-boost-leaks/63721/13 "2009-02-27T11:40:58Z")
> [@4g63girl](#):
>
> But I don’t care if they are called POOP.SPEC… if it fixes a boost leak and finds 20hp I’m happy! :grouphug:
haha
i loled
might end up getting one
ill let you know
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### Author:  [@4g63girl](https://forums.speedlife.net/u/4g63girl)
#### Post date: [February 27, 2009, 12:13pm UTC](https://forums.speedlife.net/t/mil-spec-evo-viii-ix-throttle-body-seals-got-boost-leaks/63721/14 "2009-02-27T12:13:07Z")
> [@EVOLUTION VIII MR](#):
>
> haha
> i loled
> might end up getting one
> ill let you know
haha! You coming for the RochDSM meet / STM dyno day Sunday @ noon?
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### Author:  [@neonglh](https://forums.speedlife.net/u/neonglh)
#### Post date: [February 27, 2009, 3:10pm UTC](https://forums.speedlife.net/t/mil-spec-evo-viii-ix-throttle-body-seals-got-boost-leaks/63721/15 "2009-02-27T15:10:04Z")
This was on my list of things to do! Great price, and nice to have them in stock local. I will be picking up a set :tup:
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### Author:  [@EVOLUTION\_VIII\_MR](https://forums.speedlife.net/u/EVOLUTION_VIII_MR)
#### Post date: [February 27, 2009, 3:48pm UTC](https://forums.speedlife.net/t/mil-spec-evo-viii-ix-throttle-body-seals-got-boost-leaks/63721/16 "2009-02-27T15:48:14Z")
> [@4g63girl](#):
>
> haha! You coming for the RochDSM meet / STM dyno day Sunday @ noon?
id love to but i think im going to have to miss this and make it to the next one ☹
i currently have no wheels on my car and they are getting powdercoated tomorrow
unless i can switch some things around and the car isnt on the road yet so id have to trailer it
so yeah i dk
i would love to go though…
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### Author:  [@LZ1](https://forums.speedlife.net/u/LZ1)
#### Post date: [February 28, 2009, 4:38am UTC](https://forums.speedlife.net/t/mil-spec-evo-viii-ix-throttle-body-seals-got-boost-leaks/63721/17 "2009-02-28T04:38:42Z")
Seems like some serious false advertising…
> **[United States Military Standard](https://en.wikipedia.org/wiki/Defense_Standard)**
>
> A United States defense standard, often called a military standard, "MIL-STD", "MIL-SPEC", or (informally) "MilSpecs", is used to help achieve standardization objectives by the U.S. Department of Defense. Standardization is beneficial in achieving interoperability, ensuring products meet certain requirements, commonality, reliability, total cost of ownership, compatibility with logistics systems, and similar defense-related objectives . Defense standards are also used by other non-defense governm...
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### Author:  [@Studderin](https://forums.speedlife.net/u/Studderin)
#### Post date: [February 28, 2009, 9:06am UTC](https://forums.speedlife.net/t/mil-spec-evo-viii-ix-throttle-body-seals-got-boost-leaks/63721/18 "2009-02-28T09:06:54Z")
> [@4g63girl](#):
>
> True.
>
> But I don’t care if they are called POOP.SPEC… if it fixes a boost leak and finds 20hp I’m happy! :grouphug:
:tup:
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### Author:  [@Nikuk](https://forums.speedlife.net/u/Nikuk)
#### Post date: [February 28, 2009, 9:19am UTC](https://forums.speedlife.net/t/mil-spec-evo-viii-ix-throttle-body-seals-got-boost-leaks/63721/19 "2009-02-28T09:19:46Z")
> [@mafdark](#):
>
> they aren’t to blame. MIL SPEC is a designation giving something built to military specifications, that “product name” was meant to imply/deceive.
not blaming STM at all.
Just wondering what marketing genius thought that one up.
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### Author:  [@05OrangeSS](https://forums.speedlife.net/u/05OrangeSS)
#### Post date: [February 28, 2009, 11:57am UTC](https://forums.speedlife.net/t/mil-spec-evo-viii-ix-throttle-body-seals-got-boost-leaks/63721/20 "2009-02-28T11:57:31Z")
> [@LZ](#):
>
> Seems like some serious false advertising…
>
> [United States Military Standard - Wikipedia](http://en.wikipedia.org/wiki/Defense_Standard)
What’s up with you dude? STM is not the only place that sells these “mil-spec” throttle body seals. It’s also not the only “mil-spec” product advertised on EvoM for that matter. Once again it’s probably a marketing gimmick. Someone obviously has a hard on for emery and the STM crew…
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