Hey fellas, this is a few things I'm thinking about doing. I've had my Gsr going on 2 weeks now. For my bolt ons I'm going Aem Short Ram Intake, I was thinking about either Dc Sports or a Type R header. Now if I go w/ the" R" header how much more performance would this give me in the power band compared to the DC Sports or just get the DC's. Now for exhaust, I really want one that's stainless steel through out like my Thermal Research on my 91 Si that has a nice deep sound. By no means I don't want an exhaust that have that ricey sound. I was thinking about an Apex & also want to spend no more than $420. Thanks....