No, not effectively.
Anyway, the TRD
(Toyota Racing Development) exhaust is a good bet. Also, the TSRM (Tanabe Super Racing Medallion) is a good exhaust, but is louder and doesn't look stock (I think it looks better). If you are going to turbo soon, skip the Cold Air Intake
and exhaust, because the CAI
will be incompatable with the turbo, and for the exhaust, you can get a custom exhaust made for your turbo set-up for about as much as an already made exhaust, and get more power while your at it. However, if it will be some time before turbo, then go ahead and get the Intake
For pistons, check out Wiseco. Google that and looks for the site.
For LSD, C2 Power makes one, as does Quaife. I believe the Quaife is a clutch-based LSD, which doesn't make for a good daily driver (at least I don't think so). If you don't know the difference in differential types, search and read up a little. It's an easy way to make sure you get what you pay for for such a costly mod.
As far as your car, it has a 2ZZ VVTL-i engine? Just so you know, that's a GTS in the US.