I have a 220kw Windsor AU XR and have just bought a set of 4001 Pacemakers which are currently getting a ceramic coating. The cats are stock & run into single 2.5'' system. I was wondering if any of you have put extractors on a v8 through a single 2.5''? The motor is stock, I don't want to replace the cats and the only off the shelf systems are from Manta in WA who offer the 3'' singke or dual 2.5'', both of which are too big for my taste. I want a nice sound & to take advantage of the low down torque these motors have, and I hope the 2.5'' single with one or two nice Magnaflows will give me what I want. A few suggest a custom dual two & a quarter inch but that adds around $1100. I have my rear IRS bushes to do in 6 months time, so I want to keep costs down if possible. Appreciate advice from those who have done systems on these motors. Cheers Cameron.
