Question guys... The DL that you guys have got.. Is it the new version that's been advertised? With the new stand offs etc. Also.. What's the deal with the muffler? It seems some of you guys put a JTEC or another aftermarket instead of the stock. Does the stock suck? Something wrong with it? The "new version" has some improvements to the muffler. Should I look into getting a different one if I were to go ahead and order this engine? One more thing.. Still regarding the DL50. Have you guys changed out any of the bolts? I've read a couple threads that talk about some of the stock ones not being of good quality? If so.. Which ones? Thanx.