I found that the whole job was allot easier after I dropped the exhaust on the drivers side for ease of access to the CPS, without dropping it you will have to have some pretty small hands and allot of patience. I had photo's but they were lost when my computer crashed the other day
If you do drop the exhaust you can count on the bolts behind the cat breaking off, both of mine did and I had to drill them out and use a bolt and nut instead.