The DG RCM that I had on my 350x cracked and had to be welded. It broke at the bend under the fender. My buddy has it now and the fitament is crappy. The place where the headpipe and the muffler connect always has leaked and both are DG pieces bought at the same time! The muffler hole is and always has been too large and no matter what clamp you use it still will leak! He used header wrap to make it fit better but it still is a problem. Hit the studs with PB Blaster a day or 2 before you want to remove the nuts on the header studs. I would go with the SuperTrapp as a first choice. Oh someone mentioned to get the diffuser discs for the DG RCM exhaust, well DG doesn't carry them any longer and the muffler is smaller than the RCM for the 400ex, which you can use Supertapp diffuser 4" discs for. I tried to find some discs for my old 350x but htere was none to be had. They used to come with the exhaust so someone may have some laying around, but the new RCM's don't even have the holes to bolt on some discs, anymore.
06 Yamaha Bruin 4x4
04 TRX Rancher 400 AT 4x4 GScape
86 ATC 250es Big Red
84 ATC 200s (31 yrs running strong)
13 F150 4x4 SuperCrew 5.0
00 Excursion V-10 lifted with 35s
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Gone
07 CanAm Outlander 650, 05 TRX 450R, 85 ATC 250r, 01 Kawasaki KLF Bayou 220 , 02 400EX, 85 ATC 350x, 84 ATC 200x, 85 ATC 350x , 98 KLF Bayou, 86 ATC 250r