removed the stock airbox and installed a modified 90-93 Acura Integra intake. I got the intake from eBay and it was branded as SRP. I have no idea what that stands for.
HOLY SMOKES! What a HUGE difference in sound. I read that it would be loud but I was still shocked when I first stepped on the throttle. I like it! It may be too loud for some people but not me. It sounds relatively normal when cruising at city or highway speeds, but when you accelerate it's a different story! A mod that I should have done a LONG time ago. In retrospect, I probably should have bought the HKS PowerFlow back in the early days (around '93 when it was the only intake available for the 2).