Ok so Ive got $120, and have been looking at a million different things to upgrade on my blaster. Some things were ridiculous and I didn't need it at all and I almost bought it. So, I dont want to buy anything I wont need and wouldn't aid in performance at all. I just got a UNI Air Filter for free with outerwear so that was a steal so I dont need that. But, tell me, what would be the BEST thing(s) to upgrade on my blaster for $120. ANYthing would be great! Thanks guys.