After waiting about 6 weeks for 3" catback exhaust system bought off somebody in Perth to arrive, was excited to finally fit something that would give a reasonable power upgrade, and allow the future upgrade path. For those interested, Muffler / tip on the end is a Magnaflow stainless steel.

Had some major dramas with the cat converter, which I had to transfer over to the new exhaust. Getting the old exhaust was not a problem, and simply involved jacking the car up on one side, removing it from each of the rubber hanger points, dropping the whole thing off and sliding out back under the car. The problem was with the old bolts on the cat converter. Getting them off the stock exhaust, managed to snap 3 of the 4 bolts, simply because they were old and had warped due to age and heat. Drilling through the high tensile bolts was not so easy, and first attempt had to give up. With some good advice from Skylines Australia members, and a few different sized drill bits, managed to get them all drilled out. Started with small mm bits, then progressed to larger ones, until the old bolts were drilled through successfully.

In the second shot there, you can see the difference between the (now quiet old) restrictive stock exhaust 2 1/4" system, and the newer, much straighter 3" system. Massive difference there. I think with an exhaust the less bends the less restrictive the whole system, so as few as possible is always a good idea.

Very happy with the final result of the exhaust. Car definitely feels like it has another 10-20% power, and can invoke wheel spin quite easily now. Very quiet at normal cruising speed, but when you put your foot down a nice roar. Nothing *too* loud, as to draw cop attention either. While its nice to have a really loud exhaust, drawing attention, and just driving with it everyday, the novelty soon wears off.