Feedback on the intall-
Fullsac performance are great people. They spent plenty of time on the phone going over the attributes of their product. It's a quality piece too- nice welds, and the baffle design looks impressive. Saturday I removed the stock baffles and installed 2" Fullsac baffles. Following the Fullsac directions- the job was fairly simple- the only time consuming part was being patient enough to carefully grind the welds completely to get them to break loose- you dont want to go too far too fast. I set the pipe on a block of wood and tapped the old baffle forward into the pipe a bit to get the welds to break loose, then turned it over and set the pipe bewteen two blocks of wood, used a 3/4" x 12" extension with a 1-1/8 inch impact socket- placed it down in the opening until it hit the top of the baffle and gave it a few taps, and it quickly worked its way out.
Fullsacs instructions say to drill the baffle mounting hole 1-1/2 inches from the end of the pipe, and the instructions in the post say 1-3/8 inches. I used the 1-1/2 inch mounting and they fit fine. Note- I didnt like the look of the mounting bolt & nut that fullsac sends, so I used a stainless 1/4 inch buttonhead- it forms to the pipe nicely and the finished look is a little nicer, more factory looking than a chunky hex head bolt on the underside of the pipe
I also replaced the header pipe with a non-cat header from another 09.
Ok- how do they sound?- very nice. I've owned Samsons, Hookers, V&H, Supertrap, Kerkers, and you have to consider that loud and tone is so subjective from one ear to the next. All I can report is that they( 2"baffles) are definitely not too loud, actually far from it. At idle they have a deep impressive sound, and at 50%+ throttle( acceleration) you can hear them yeah, but their not obnoxious to scare old ladies in the car next to you. At cruise speed, not too loud, actually the wind noise overshadows the pipe noise. But at least now, I cant hear the air cleaner sucking air over the exhaust. Someone said they sound like Rinehart's- well they do have a nice deep note now, but they dont have the snappy sound that Rineharts produce. Anyway the sound was better than I expected, and the performance result was very noticeable.
Overall- if you are the slight bit handy, you can do the job yourself- the baffle replacement is worth the $120. I think the stock can looks great, so why toss it, and spend $500 on somthing else with similar performance? And if you want, you can change the end caps for a different look. The throttle response was much better, I noticed a little drop in torque( by feel only) between 2000 & 2500rpm, but more pull than before between 2500 to 4000. I know the bike needs to be tuned, I expect everything to improve after that. (I would like to have heard the 2.25" just to compare though.)
Thank you to "birdman" for posting the PC5 map- I'm not running lean any more. " I love the smell of fuel in the morning"
Final note- after the baffle replacement and header replacement, the exhaust flow is noticeably reduced in the left side can- definetly stronger in the right side. Which doesnt bother me, I think it will result in more of a 2-into -1 effect- which should help with torque values a little.
Picture of the standard baffle next to the Fullsac baffle-