Great Filter! (2019+ STi)
Like everything else I've purchased from GrimmSpeed, you can tell the team really focuses on quality and performance so they can bring a great product to market. You'll notice the fit and finish of the filter is top-notch - drops right in and you're on your way. Never been the biggest fan of "wet" filters, so this was an easy purchase. As noted in another review, there is minimal increase in intake noise and the car seems to breathe/pull better all the way to redline. I'd recommend it to anybody in the market for a filter.
Great dry filter option for the 2019+ sti
Here’s the deal, only 2 companies make specifically designed filters for the 2019+ sti redesigned airbox. The previous filter designs for 2015-2018 sti are a hit or miss on fitment and I have personally tested:
blitz (doesn’t work at all for 2019+ sti airbox the thing won’t close)
K&N (great filter but oiled and power band can feel choppy? at times.. - only other company with 2019+ sti specific filter design)
Apexi - fits the airbox but does not feel like a proper fitment, if you don’t believe me experiment with one in a 2019 sti and see what I mean - good filter quality though and does basically fit but very tight close.
And now...I’m running a Grimmspeed drycon. Smooth power band. Designed similar to a k&n but looks like a lot nicer filtration design good material as described by them. Excellent perfect fitment in the airbox for a 2019+ sti. I will say it’s not audibly as “wooshy” as all the other panel filters I’ve mentioned. It’s kinda quite like the apexi with the k&n being loudest. But this one makes a little faint intake noise over stock and apexi & honestly thats cool plus the car feels nice and stock with it and rings out the rpm range real nice. It’s washable which is also a plus and I’m glad there’s a few ponies from it more than likely as highlighted in their testing for the sti.
Great stock airbox panel filter option. Don’t hesitate just get it instead of a stock genuine OEM one and give it a shot like I am.