Where's the "Engine" mods forum???

I want to do a bolt-on mod or two to my girlfriend's leased base 2008 2.5i Sedan. I'm mostly interested in an exhaust to spice up the sound. Maybe a chip too, but it's got to stay 87 octane.

So is anyone making these mods yet? Would aftermarket WRX Sedan muffs fit the 2.5i (STis and 5-doors have the single muffs)?

What other options do I have? (intakes are a waste of money imo) How about cams or fuel delivery?

 

you might be better off asking on the Nasioc forums (North American Subaru something Owners Club) as over here in Europe we don't get the sedan version

Nasioc is over at North American Subaru Impreza Owners Club