Opinions on Subaru's WRX STI exhaust upgrade
Hi, I'm about to order a 2012 WRX STI hatchback and the dealer is only charging me $500 over invoice, which includes any options at invoice. I'm trying to decide whether or not to purchase their performance exhaust upgrade. I'm sure there are better 3rd party exhaust systems, but I'm not sure if I could get the same deal as invoice for Subaru's version. I also plan on doing a Cobb stage 1 ECU upgrade.
So has anyone here purchased Subaru's exhaust upgrade? Any comments? Anyone know expected HP gains?