Well I don't know if I lost low end torque as it sure don't feel like it in the seat from my mod but I know without a doubt that I am still getting mid 40s on MPG, the bike SOUNDS like it should, nice low end rumble but nothing like my S1L1's on my TC and I DID add Lloydz 2nd upper air filter with no remap. The engine became more noticable with just the muffler mod, adding the filter finished the job and yes, it does seem to run cooler or my right leg has gotten used to the heat. It will set your butt back now where before it would lumber off the line and never really felt like it had any real Uuumpphhhh....
Looking at the 2011 muffler design, I chose to drill the exterior of the muffler tip, 7 - 1/2" holes after removing the black flange from the tip. NOT the center baffle which was removed on this thread. I read some 6, 7 and some 8 holes from differnt riders. Went down the middle with 7. The bike sounds and feels awsome and cost was at 100 bucks because I bought the filter.. Already had the drill bit. I get VERY few backfires, usually only if I drop off WOT to close. Downshifting has a little, subtle, no big pops or anything. Sounds almost identicle to my TC with has the Ness BigSucker, Stage 1 flash and S1L1 pipes which look about like the thrush I believe.
So, if you want to try something free, drill first... If you like it leave it. I would add the Lloydz filter if your doing any mod. As for rich lean, my pipe tips look about like my TC do, maybe a little more dark. I am about to pull the plugs as I wanted 1000 miles on the mod to see how they're looking. Doing it RIGHT is a fuel controller, dyno along with the exhaust and intake WITH CAMS! BUT, funds don't allow that right now. Will be doing cams sooner than later and THEN will get all the widgets in line.. :-) Good luck on which ever way you go.
2011 White Vision - Nuvi 550, Lowers, Lloydz 2nd filter, Vic perf filter, CB/Icom, 96 Brake LED's, Clear Signal lens/Switchbacks, VIC Hwy Pegs, Stebel Horn, 7Jurock 15" Shield, PCV, Lloyd ATS and Variable intake, Ness honkers
2004 V92 TC - S1 flash, level 1 slip-on, Ness big sucker K&N, ISO Grips, 4x1.5 Highway Hawg Risers, extra chrome (never too much), JM 2k CB 4' antena, Mustang seat, HD Front TS & Lowers, OD Pulley
Retired Navy SCPO
Last edited by Tims_04V92TC; 12-06-2012 at 04:00 PM.