Quick question on K&N SRI/CAI for regular 3
 

Many years ago, I bought from RPM a K&N SRI/CAI for my wife's regular 3, 2007 2.0L. It is configurable to be installed in CAI or SRI mode. I did the SRI mode.

If I recall, and perhaps I don't correctly, but, as I recall, it didn't come with a hose for hooking up to the valve cover, but, I took care of that. And, I don't think it came with an air straightener. Though it is fairly small, maybe doesn't need one.

For years, the car burbles a bit at idle, like at a stop light. To be honest, I have no idea when it started, maybe when I put in the K&N part, maybe some other time. I have no idea.

But, it has occurred to me recently that just perhaps it is due to no air straightener. I remember that the AEM intake for the MS6 when first released didn't have an air straightener, and then they later added it. I was just wondering if, conceivably, the situation is the same with this intake of mine.

Or, perhaps not, nothing to do with it. Just thought I'd ask. Thanks.

Why bother with an intake at all on a 2.0L 3? Go back to stock, and sell the intake. Problem solved.

Air straightener won't matter. But I'd check to make sure the diameter of the MAF housing is identical to the stock one.