u/bearded_dragonlover

2016 wrx sti, I’ve been trying to find other examples of this motor online but it keeps showing different stuff

So I’ve been looking at an atmospheric BOV but online it says I’ll need a tune for it, but I wouldn’t need a tune for a recirculating BOV/BPV, the thing is I’ve head from other places that if I get a atmospheric BOV made for my car then I wouldn’t need a tune and I really like that pshhhh sound, help me out