Grimmspeed Stealthbox Intake | 2015-2020 Subaru WRX (060060)

This is the peak of WRX intakes, no brand surpasses grimmspeed with quality, performance, and the insanely loud sound. I have a grimmspeed inlet, bpv, + tmic and after putting the intake on the car completely changed. The sound isn’t too noticeable under 10% throttle but once you get on it the sounds are incredible plus the purging from the bpv is just perfection. Plenty of people say cold air intakes aren’t worth it for this platform, I couldn’t disagree more after buying my own the performance gains are noticeable and the sound is just perfection. Only downside is the shipping time, took a little over a month for mine to ship (both the black and red pipe versions will take around that time to ship so pick the one you prefer) takes a while to arrive but once you put it on you won’t regret it. On top of all that install isn’t too hard about 1-3 hours depending on your experience/tools available. As for the tune (yes a tune is required not recommended) a pro tune/etune is your best bet but you can probably run the stage 1+ bigsf tune on the accessport without issue, however if you notice knocking, DAM drop, or unusual AFR values get a proper tune asap.

This intake is one of the best aftermarket options out there, it’s really well made and works perfectly with the original air-duct to ensure it’s getting fresh, cool air from outside the engine bay

I got the grimmspeed stealth box for my 2015 subaru wrx. It sounds great, and the car feels like it runs better with more air. The shipping was excellent and came very fast. I would definitely buy from this company again.

Shipping was fast and item came perfect. The intake is well designed and fits in perfectly. Love the looks and the sound it gave. Definitely a must upgrade.

Shipping was fast product was packaged great!