The following is a complete "how-to" regarding the Nextgear thermoshield intake manifold gasket, complete with before and after results.
I would like to give a HUGE thanks to Moto-C for their help and support with this product. I would also like to thank TPS (Total Performance and Service) for their help as well. Install time should be 1.5 to 2 hours start to finish. On to the install!!

First, I drove the car for about 10 minuites and got it up to full operating temperature. Then, I recorded the following using a combination of OBD Scantech, Calumsult, Weather.com, and a Snap-On Infrared digital temp gun (model RTEMP60PB).

Outside temp: 74* F
Intake air temp: 117* F
Coolant temp: 208* F
Intake manifold runner temps (from drivers to passenger side):
Runner #1: 156* F
Runner #2: 165* F
Runner #3: 153* F
Runner #4: 161* F
Average runner temp: 158.75* F

http://www.sr20forum.com/img/data/500/medium/Runner1before.JPG
http://www.sr20forum.com/img/data/500/medium/Runner2before.JPG

At this point, I let the car cool and began the install process.
1. Remove all vacuum lines and hoses.
2. Remove throttle cable and linkage.
3. Unbolt the power steering line bracket from the backside of the manifold.
4. Release fuel pressure by removing fuel pump fuse and running engine until it stalls. Turn ignition off and re-install fuse.
5. Unplug your 4 injectors.
6. Remove fuel feed and return lines.
7. Remove intake manifold and both gaskets.
**Note: there are 2 gaskets for the intake plenum available for the SR20 from Nissan. My motor is the SR20DET and this is the correct replacement gasket: Part# 14032-53J10.

http://www.sr20forum.com/img/data/500/medium/install1.JPG
http://www.sr20forum.com/img/data/500/medium/install2.JPG

8. Make sure all mating surfaces are clean and free of any dirt or debris.
9. Install new thermoshield gasket onto the head and the other new factory gasket onto the lower intake plenum.

http://www.sr20forum.com/img/data/500/medium/install3.JPG
http://www.sr20forum.com/img/data/500/medium/install4.JPG
http://www.sr20forum.com/img/data/500/medium/install5.JPG

10. Re-install the intake manifold. My recommendation is to get all nuts/bolts started by hand and snug them up before torqing down. Also, I would tighten all of the lower plenum nuts/bolts first, then the upper section. Start with the center nuts/bolts first then work your way outwards. Tighten to 13-15 ft. lbs. Start the car and check for leaks.

http://www.sr20forum.com/img/data/500/medium/install7.JPG

On to the results. Again, I drove the car for about 10 minuites to get things warmed up and got the coolant and intake air temp back to where they were initially to get the most consistant and reliable readings. As I recorded the temperature readings, I was absolutely amazed at the results. See for yourselves!!!

http://www.sr20forum.com/img/data/500/medium/Runner1.JPG
http://www.sr20forum.com/img/data/500/medium/Runner2.JPG

Outside temp: 72* F (2 degrees cooler)
Intake air temp: 117* F (same as before)
Coolant temp: 208* F (same as before)
Intake manifold runner temps (from drivers to passenger side):
Runner #1: 125* F
Runner #2: 135* F
Runner #3: 134* F
Runner #4: 135* F
Average runner temp: 132.25* F

This means there was an average temperature drop of 26.5* F!!!!

As we all know, a cooler intake temp equals more horsepower and I can't think of an easier or more cost effective way of lowering your intake air temperature than this gasket. And, you can get it right here on the forum from Moto-C.
The following morning, we went to the dyno and were very pleased with the results. The pulls were made at 12psi. Here are a couple pics:

http://www.sr20forum.com/img/data/500/medium/Dyno1.JPG
http://www.sr20forum.com/img/data/500/medium/Results.JPG

Very nice write-up, good job! You hp numbers seem really low for 12psi though.

12psi and 209whp? is that right?

12psi and 209whp? is that right?
Yeah, it's a stock DET w/ T25 and 2.25" exhaust. Stock cams. Only real mods are a JWT aluminum flywheel and UR pulleys, so I think it's about right. Remember, that's at the wheels. I don't think it's that bad, and look at the torque bro!!!:biggthump

Do you know how many hp's you gained whit this mod? i'm amaized whit the results!!!

Yeh, is there a before and after dyno sheet comparo?

Nice write up but, I have a couple questions...Do you know if they have them available for a USDM Lowport motor?! And wouldn't this be similar to the outlaw engineering spacer kit?!

Yeh, is there a before and after dyno sheet comparo?
I do not have a before and after for the dyno simply because prior to installing the gasket I had a vacuum leak between my manifold and plenum which is why I contacted Moto-C about this gasket. The results would not have been accurate because I would have yielded higher numbers after because of closing up the leak and holding more boost. Also, doing a before and after on the same day would usually be about $125-$150 worth of dyno time:eek2:. However, the numbers speak for themselves, and for the next couple days after, when I would stop the car I would check and the temps are staying about the same:biggthump .

Nice write up but, I have a couple questions...Do you know if they have them available for a USDM Lowport motor?! And wouldn't this be similar to the outlaw engineering spacer kit?!

I am not a vendor, so I cannot answer this. I would contact Moto-C regarding this.

Nice little write up. I know the spacer kit is just one instead of the 3 outlaw gives you. But this is the most important one anyways. I plan on getting it myself.

Nice little write up. I know the spacer kit is just one instead of the 3 outlaw gives you. But this is the most important one anyways. I plan on getting it myself.

Yes this gasket is the best bang for the buck.

Bump to the top....just want to make sure everyone see's this thread...awesome product/upgrade!!:biggthump

Bump to the top....just want to make sure everyone see's this thread...awesome product/upgrade!!:biggthump

Come on now :D who wants one.

no longer bolts are needed with the moto-c gasket?

Which engines will Moto C gaskets fit? Highport? Lowport? VE?

no longer bolts are needed with the moto-c gasket?

that is correct no longer bolts are needed your stock bolts, will work fine.

Which engines will Moto C gaskets fit? Highport? Lowport? VE?

as of now the only one that is not sure is the lowport but believe that it will with a few modifications.

these will work on RWD SR20det and the GTiR

Whats the price and will you ship to South Africa? I might take 10 :)

Yeah, it's a stock DET w/ T25 and 2.25" exhaust. Stock cams. Only real mods are a JWT aluminum flywheel and UR pulleys, so I think it's about right. Remember, that's at the wheels. I don't think it's that bad, and look at the torque bro!!!:biggthump
I made 220whp & 213wtq @ 10 psi with a 2.5" crush-bend exhaust and DP. Everything else was stock.:squint: