harley exhaust help please?

I have a 2005 Harley FXST softail standard with 88ci carburated engine, with Vance and Hines straightshots HS installed by Harley. I am wanting to put unbaffled Samson Groundpounders on it because I like the sound so much better. I am wanting to know if there are any pros out there who can tell me what if anything special I need to do to it first. I have heard lots of things about back pressure, reversion cones, torque cones, nothing at all, just slap them on. ect. ect.
I am needing help so I do it right. Any and all help would be greatly appreciated. Where I live nobody cares about the roar! Thanks in advance........

what are some good pipes for a harley sportster 883L?

hey ppl so i bought a 07 harley 883L about a month ago and am looking in to getting some pipes for it i like the look of the martin bros pipes as well as the vance and hines short shots pipes im lookin to make it loud but not loose too much gas mileage from it i know i would prob also have to rejet and get maybe a bigger air cleaner for it any suggestions on what pipes and air cleaner mods i should get i really like the cone air cleaners thanks

What kind of pipes(exhaust) for your Harley did you put on your bike?

Looking to put new pipes on a softail heritage. Right now stuck on Thunderheaders, Vance and Hines and Rineharts. Cant decide. Also stuck between getting 2 in 1 or duel exhaust.
Looking to put new pipes on a softail heritage. Right now stuck on Thunderheaders, Vance and Hines and Rineharts. Cant decide. Also stuck between getting 2 in 1 or duel exhaust. Also please provide any good websites.