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IPD plenum on a GT4

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Old May 17, 2016 | 11:09 AM
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Originally Posted by M3est
Yes but which ones? Dont they make the car throw a CEL for catalyst?
Our HJS 200 cell catalyst equipped Sport Headers do not throw a CEL!
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Old May 27, 2016 | 10:11 AM
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I've read reports of some drone in the cabin with the plenum. Can anyone confirm or deny this?
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Old May 27, 2016 | 03:29 PM
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Originally Posted by Dr. G
I've read reports of some drone in the cabin with the plenum. Can anyone confirm or deny this?
Not with the Spyder.
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Old May 27, 2016 | 07:36 PM
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I do not believe the Plenum will cause drone. I heard there is a little whistle/hissel sort of because of the higher airflow
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Old May 28, 2016 | 12:58 AM
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Drone seems like a 4dB increase 2700-3000. This wasn't there before I put the Plenum/TB in. (Same headers/exhaust)
IMG_6441.jpg

Fabspeed Valvetronic in action
IMG_6443.jpg
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Old May 28, 2016 | 02:06 AM
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average wife - 92db
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Old May 28, 2016 | 11:36 AM
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Originally Posted by user1029
average wife - 92db
lol

3 kids under 10 = 102.7dB
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Old May 28, 2016 | 12:01 PM
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Originally Posted by kitwetzler
Not with the Spyder.
Probably because the engine is not part of the cabin as is it in the Cayman.
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Old Jul 8, 2016 | 09:19 PM
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Any update on those that have the CEL using the IPD/TB combo on the GT4?
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Old Jul 8, 2016 | 09:34 PM
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Originally Posted by socal28
Any update on those that have the CEL using the IPD/TB combo on the GT4?
It appears those with a Tune will not throw a CEL now but w/o a Tune with a recalibration 50/50 but I think the Tune necessary to exploit this upgrade
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Old Jul 8, 2016 | 09:54 PM
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So is the Plenum/TB combo worth getting if I'm going to get software for my catless CG headers?
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Old Jul 9, 2016 | 12:36 AM
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^Lottery question. There have been posts showing the benefits of TB/IPD but do not know if with or with out tune. I think no one has yet broke it down in isolation. But, Fabspeed numbers are pretty darn impressive and that had the TB/Plenum but our friend from Australia just had Sport Headers and tune and those were also pretty darn good.

I am still on the fence with the TB/Plenum but 100% sold of headers and tune
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Old Jul 9, 2016 | 12:50 AM
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If porsche is looking for more power in their CS upgrade kit, and they don't do the plenum or TB, that says a lot to me. Mine is coming off once I get the car back together. If you really want one, you can buy mine.
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Old Jul 9, 2016 | 03:00 AM
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Originally Posted by Jimmy-D
^Lottery question. There have been posts showing the benefits of TB/IPD but do not know if with or with out tune. I think no one has yet broke it down in isolation. But, Fabspeed numbers are pretty darn impressive and that had the TB/Plenum but our friend from Australia just had Sport Headers and tune and those were also pretty darn good.

I am still on the fence with the TB/Plenum but 100% sold of headers and tune
Tb/plenum gives that top end which is missing, from fabspeed graphs it looked like it changed the shape of the curve at the end.. Kept growing rather than flattening.. On my phone so going from memory, need to find the graph to post.

Tb/plenum has long been the primary Porsche engine upgrade
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Old Jul 9, 2016 | 11:31 AM
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Originally Posted by ShakeNBake
If porsche is looking for more power in their CS upgrade kit, and they don't do the plenum or TB, that says a lot to me. Mine is coming off once I get the car back together. If you really want one, you can buy mine.
Have details on the CS upgrade kit been released??
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