Thats pretty good since its stock allthough I feel the GS-R has the quietest cross-ever of all vtec's do to the fact that it has the dual stage manifold. The type R followed by the 99-00 si were the loudest and most drastic from my experience. I have never ridden in a Type S with an intake so I really dont know how loud that is. I am hoping the new si is louder then the old type R was with an intake. :thumb:etf said:I had a '98 Integra GSR with a AEM CAI. My '06 Si (with the stock airbox) sounds just like the GSR did.