So today I spoke with Russ at Z1 and placed my order for the z1 power plenum and ported lower intake manifold with a new gasket for the mating surface between the lower intake manifold and the cylinder head. The following Sunday after they come in I will install both and dyno my car at the same dyno I've used in the past so we the 370 community can get a rough idea of the gains with this mod. Now my car already has a fast intentions cat back exhaust and stillen gen 3 intake. I may have a set of fast intentions test pipes on by then as well. I'm trying to get all these bolt on on the car before my ecutek tune on the 18th. I'll keep everyone posted.

Nice man but I'm guessing maybe 5 WHP, the power band may move a little earlier in the RPM's.

An yes for what Chuckie said, those were ECUTEK tune VS UPREV.

Any more updates on performance measurements before and after?

So today I received an email from Z1 that my ported upper plenum and ported lower intake manifold shipped today and will be arriving tomorrow. I only live an hour and a half from Z1. Not this weekend but next weekend ill install everything, take pictures for a future DIY, and take her back to the dyno so that we will have a full story on these parts.

Just switched from Motordyne M370 intake manifold, Injen Intakes to AAM Intakes, Z1 upper and lower intake manifold (plenty of other mods, nothing else changed though). Final numbers after tuning went from 331whp 269lb/ft to 337whp 268lb/ft. Supposedly lost a little mid-range with the bigger intake tubing? I dunno - car feels awesome, dyno graph definitely shows more power in the higher rev range, but the numbers were sort of disappointing. I'll post the graph sometime soon.

I've been debating on keeping the stillen gen 3 or changing to the AAM intake. Yeah I've got the fast intentions CBE and stillen intake(dynoed @ 306whp) added fast intentions test pipes (dynoed 317whp). So now I'll add these parts and dyno after. This will all be followed by an ecutek tune. I'm not quite as worried about peak numbers, more just curious to see what changes and by how much.

Ever consider going with EcuTEK? I think you would hit 345-350 with it.

Yeah ecutek is the route ill be going

If I didn't have tuning software already, then maybe. I can't justify spending 600-900 bucks or whatever it'd cost on another 7 horsepower or so. Rather put it back into suspension/tires.

So the parts just arrived. Ill post pics tonight. If anyone wants to see them now I just posted them on Z1's Facebook page under viewer's post.

That TQ loss in the mid range is what you'll see in just the upper swap, That's what I saw when testing the M370 Vs. Z1, 5 WHP would be the lower porting. :)

No can see. :(

I know I'm having issues with posting photos from photo bucket. That's why I haven't posted the photos yet. So working on it.

http://http://i1078.photobucket.com/...saxxhjoyl.jpeg

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