You'll gain like 5-7hp from the borla. Everyone around here seems to love the Borla sound, but i've personally heard it in person and with a header, original cat in place, and an added resonator it definitley still sounded like a burner(it had an acute, piercing sound to it). But if you don't mind it too much, go for it.
I always got compliments with mine when I had the Cosworth race header on, even though it was pretty loud. Now, with the turbo, it sounds amazing! I love how it sounds, and loved how it sounded before I had the header too. I have the Borla flex-back as well. [thumb]
no complaints about my borla! I love it, deep and moderately loud but no "burner" sound. Don't know what it would by like on your 2.3 d but I wouldnt think it would be that much different.
A forum community dedicated to Ford Focus owners and enthusiasts. Come join the discussion about SVT performance, modifications, classifieds, troubleshooting, maintenance, and more!