i spoke to a couple of exhaust places recently and they said the x-force system is gwd, but the pacemaker cat back is a bit better made and comes with all hangers rubbers, i think x-force does too, iv decided to go the full pacemaker system as its all made by pacemaker as one big system, i know the cat back system is bout $250-$300 more than the x-force, but going to get all pacemaker. as they said to me the x-force is a gwd system and looks gwd, but the pavemaker cat back is a bit better built and apparently a stronger/thicker grade of stainless steel. look up the pacemaker website
Pacemaker Headers Australia - Quality Performance Exhaust Headers :: Home and check for your nearest distributor, good luck with it.