I would agree, It just seems like the dip is a little more pronounced on the FRS. I dont think its a problem, but is this what other people are experiencing or is there a different issue?

So if I understand things correctly now this is what it should NOT do? My FRS seems to sit at 500-750 RPM a decent amount of the time and otherwise near 1000 RPM.

Should I be worried? Honestly, it hasn't made any bad sounds like the engine is struggling or tended to stall whilst idling in nuetral or with the clutch pedal pressed in.

EDIT: In any case, it doesn't seem to bounce around or "dip" uncontrollably

No, this is where it should be. That's pretty much a perfect idle. 1,000 RPMs should only be for the first 2-3 minutes of operation and then it'll go down by about 100-200 and then finally settle at about 600-700. The engine will probably never sound like it's struggling unless it starts to hit 300 or below. Then that is an issue.

Does yours dip after you give it a little gas and let off the accelerator like in my video?

The car isn't idling low all the time. If it sat for 2 mins at the same rpm then it's fine, but ours seems to do it when slowing down. As far as I know, it's not normal to stall when coming to a light, or even drop low enough in idle to nearly stall and shake.

When my engine is cold, it idles at ~1500rpms for a few minutes. Not sure if thats normal or not though. All of my previous cars would idle at 1k while cold then drop down to 750-800rpms.

That what you describe is not normal and def not what was in the vid. This sounds like a fuel line/pump issue and I would defiantly have it looked at if you can reproduce.

1000-1200 is fairly normal. 1500 isn't out of the question.

I was thinking the same thing. Maybe the OP can edit the 1st post, listing username, last 5 of VIN #, production date and delivery area. My frs mt is running fine so far @ 500 + miles.

What you are describing sounds like a vacuum leak or a MAF problem. MAF turbo cars with BOV's have this same problem if the BOV is set too "soft", ie, the system doesn't close. Either way, I'd have it checked out by a dealer. Chances are some of the intake routing hoses are loose or cracked.

I haven't noticed it yet, but I will be on the lookout. Approx 750 miles on my MT FRS

My s2000 did this sometimes after a big change in weather. Example: Seattle has a very temperate climate and doesn't see anything "warm" until July then bam: 85 degree days. The S2000 would have to "re-learn" the ambient air, would stumble a bit at idle, "pop up" then come back down and it's all good. It might do this a couple times after the start of the warm season.

Ok, but this is of now value to those where the CEL's were coming on or the car was dying... That's a bigger problem I suspect and if it happens to me when I buy mine I will be back in the dealership IMMEDIATELY.

I once drove a modified S2000 with turbo. If I quickly release the gas when the car in station, the RPM can drop to very low, the higher I rev it, and release quickly, the lower it drops and can stall very easily. However, it I release gently, there is much less chance for RPM to drop lower than it should be at idle.

So, can you guys with MT FR-S try to see if you gently release the gas, coasting rpm back to about 800, is the problem is still there?

That should be normal. Every car does it so it can warm up quicker. Don't sit and wait the car to warm up, drive it. This warms the engine up quicker. Sitting there does more harm to the engine and is bad to the environment.