My 2009 SG was delivered with the 96 upgraded to a 103 with 255 cams. The 2009 pipes did not have a cat and I was told they were a good headpipe when combined with good mufflers. My first upgrade was to take off the cat mufflers and send the original stock 96 mufflers to Steve for 2" cores and got a TTS. The sound was pleasing to me and she ran great after lots of experiments using a TTS.
I got a bug up my ^&% to try his X-pipes, so I ordered what I think was his fourth version. They were coated inside and out and replaced the HD headpipe perfectly using the HD chrome covers. All I can say was WOW. It felt, sounded, and ran better even before I retuned with TTS. To me the 255 cams seemed to run great, unlike many complaints I have heard on multiple boards. However, I am on my third Compensator with less than 30,000 miles. I HATE that kickback on startup when the comps begin to fail. Four words; 255s = TOO MUCH CRANKING COMPRESSION.
With that in mind, I took the bike to Steve and he swapped out those 255s for Andrews 54s. Since I came in the shop with a hot motor just off the highway he ran some baseline dynos. I just was amazed that my home grown attempts at tuning were producing over 105 ft lbs Torque. Patting myself on back now...
The 54s and a 30 thou. head gasket swap produced 102 HP and 112 TQ. Not too shabby for a 103 with stock 96 heads. To me the sound is just right, I can still hear the music and wont be getting stopped for noise level. Sounds great and feels great, Love the Fulsac combo.
jimbob