Cost: $400 (used)
Setup: CBE
Brand: MadDad Whisper full 3"
WRX or Forester specific: WRX-specific
Hangers: NAPA long hangers, P/N 35719
Comments: Obnoxiously loud for me (personal opinion, not bashing). Very deep and bassy, sometimes nice but annoying most of the time -- louder than another member's COBB. Using it with Invidia v4 catted downpipe.
Cost: $235? (used)
Setup: AB
Brand: Prodrive oval-tip 2.5"
WRX or Forester specific: WRX-specific
Hangers: KartBoy XL hangers
Comments: Deep, mellow sound, nice rumble. Ran for 1 1/2 years, got tired of the noise -- it was pretty loud. Ran with stock exhaust at first, then with Cobb catted downpipe. Video below is with the stock exhaust.
YouTube - Stan's '07 Forester XT -- 3 of 3
Cost: $70
Setup: CBE
Brand: OEM STi 2.5"
WRX or Forester specific: WRX-specific
Hangers: KartBoy XL hangers
Comments: Nice and quiet, power difference isn't noticeable much with the VF43. Ran with Cobb catted downpipe, will be switching back to the axleback and using 3" to 2.5" midpipe of some sort.
Stan