thats the MAF sensor.
I had that problem with my Jetta all the time.

With all due respect, this is not a Jetta. Different manufacturer, different engine, different everything. We need data or info showing why you believe it's the MAF on THIS car.

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Are you really fine with that? It's not like a tune is just a few extra bucks. If I was having this issue and was not told a tune was required, they'd better be willing to give a refund...unsat...

I never said I was fine with it and Im sure (at least I would hope) that whoever you bought it from would be willing to work with you.

I dont have an aftermarket intake.

I don't either...and this is an example of why...the performance gained is nil or negligible, and a lot of times they just cause other issues...

Is it me, or does every time Memphis posts, I read it like Kevin Bacon is saying it with the tone of his avatar? haha

This may be a stupid question...but for those who are having problems, why don't you replace the stock intake and see if the problem goes away?

Im not sure what you mean by replace the stock intake, but on the stock intake and Johns tune, I didn't have this issue. The issue reared its ugly head about 100miles after the Airaid intake was installed. For the first 100 miles or so the throttle below 4k rpm was laggy.

I was suggesting to remove the AirRaid and go back to stock to see if it solves the problem for sure.

-J

I believe that Perrin set out to make 1 aftermarket intake and AFTER realizing they had issues with the MAF decided to make one that would run as close to stock as possible.

Also, I know that money is an issue to some people but I come from the school of thought that in order to get max potential from your parts that a tune IS required. Even if the manufacturer says that one is not required.

Now, and I hope you got this far: this is a first year car and not all variables have been taken into account by aftermarket parts companies/tuners. This type of thread is specifically what is needed to make others aware of issues that may arise. I know that I will be pushing back my intake purchase until these issues are resolved. And I hope that others also take threads like these into account before making purchases it he future.

To those that already bought the intakes and tunes: Thank you, for being brave enough to be the beta testers for these cars. You are doing us all a great service.

I did, and yes, it went away.

Hi guys, just so you know we have been monitoring this thread and will be doing some data logging with our own FR-S here at our facility. We will be sure to report our findings as soon as we have something.

out of curiosity I removed my K&N Panel Filter and reinstalled the stock filter on my Visconti Tuned BRZ. Engine seems a lot smoother in the 1500-3000 RPM range.

Doubt that will help anyone here, but just an observation.

But it feels held up in the higher end.

Your observation along with this one is what I found when I removed the K&N drop in filter to go back to stock.