the first one looks nice, but you will still have to cut the pipe as it is a slip on, not a full system. They supply the link pipe, so all it takes is a quick cut with an angle grinder. A full system won't be cheap, and if you're scared of grinding it down the road, just get a slip on, and a R&G exhaust protector
the second just looks like a standard SV exhaust - why would you want to buy one when you already have one