Another GC8 exhaust opinion thread - opinions wanted

[ZiN]

I've done a bit of research most of it is a bit old now and I'm looking for an update and opinions before I drop possibly over $2k on an exhaust install.

Most of my decisions were based on the below thread, among others.
http://www.perth-wrx.com/vb/general-...8-exhaust.html

My Options I've been considering are:

Hitech twin tip $1800 plus installation.

Ultrex single tip $1250 installed

Second hand Butler single tip $900 installed

All the above are turbo back stainless systems with hiflow cats.

I'm really after a twin tip to keep the WRX looking fairly stock. I'm wanting to hear the Subie rumble while driving but not interfere with music or conversation and little to no drone. Currently I can't hear the stock WRX MY99 exhaust when windows are up or over wind noise. I don't want to strain my ears in order to hear the rumble but I don't want it too loud either... early morning starts.

I want to find the best fit for my needs, I don't mind paying but I don't want to needlessly pay if not required. I'm leaning heavily towards the Hitech and hoping twin tip keeps a good sound with the look I want. Performance improvements are a bonus. Any recommendations or advice will be appreciated?