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Scion FR-S / Toyota 86 GT86 General Forum The place to start for the Scion FR-S / Toyota 86 | GT86


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Old 02-14-2020, 03:46 AM   #71
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Exhaust manifold of GRMN86 is catless, but not that much different from the upgraded OEM manifold. You can think of it as a catless version of the OEM.

Intake manifold is another story, but not much information about. All they were saying was that it was too expensive to install it to the factory car.
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Old 02-14-2020, 04:07 AM   #72
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jp car parts also list those parts as out of production and yes, the price was incredibly high
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Old 02-14-2020, 04:27 AM   #73
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the cost bonnet is incredibly high
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Old 02-14-2020, 04:33 AM   #74
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the intake manifold is a headache. and i m planning getting those parts.
but it require a bunch of modification to get it run right.
it using vacuum to activate, it also have sensor which connect to a different wiring to the engine loom and i believe only grmn 86 using that engine wiring.
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Old 02-14-2020, 04:33 AM   #75
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i only have the front lip, side skirt and the rear spoiler atm
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Old 02-14-2020, 04:35 AM   #76
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and actually the cost for the intake manifold itself is just slight high than the kouki red intake manifold. and it just require a lot of work to make it run right
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Old 02-14-2020, 04:37 AM   #77
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i have try out jpcarparts, most of them are not shipping to oversea since grmn is a special model
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Old 02-14-2020, 05:19 AM   #78
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they do ship, but those parts are out of production.
The GRMN86 tune has no change in cam intake/exhaust timings, so that intake manifold do not require anything special to make it work, it'd just work good as soon as you'd plug it in
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Old 02-15-2020, 02:43 AM   #79
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82219-18010. there is extra wiring that only use in grmn for the sensor
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Old 07-10-2020, 02:25 AM   #80
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GRMN86 differential
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Old 07-14-2020, 04:48 PM   #81
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If I'm not wrong it's a different ratio Torsen with 4.3 FD, right?
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Old 07-14-2020, 06:06 PM   #82
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Originally Posted by gpvecchi View Post
If I'm not wrong it's a different ratio Torsen with 4.3 FD, right?
That’s my understanding too. Gotta say I’m a little puzzled why somebody would spend the time and money to specifically track down a GRMN diff when the 17+ cars utilize the same gearing.
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Old 07-15-2020, 01:51 AM   #83
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If I'm not wrong it's a different ratio Torsen with 4.3 FD, right?
Yes, it is with 4.3 FD ratio. Compared to standard TORSEN LSD, lock rate is over 133% when accelerator is stepped on and over 124% when released.

Compared to a multi plate type LSD, smooth and responsive performance of the TORSEN traction is kept. Additionally, it doesn't require any maintenance apart from the usual oil change.
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Old 07-15-2020, 02:52 AM   #84
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Originally Posted by TylerLieberman View Post
Gotta say I’m a little puzzled why somebody would spend the time and money to specifically track down a GRMN diff when the 17+ cars utilize the same gearing.
This was a build to order factory part. Meaning that Toyota Japan took a standard 17+ differential (4.3 FD ratio) and opened it to change the Torsen with the improved one.

Other parts like the GRMN intake manifold are discontinued, so it is much harder to find them.
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