proud new owner of sp3 curious

so i just got a 2003 from a fella on here atk pilot
and first off i have to say im one lucky fella, but i am curious about the backfire on decel its been remapped with a triumph cf pipe and its not horrible but she does pop a bit know what i read on here is that its not necacrry that it does and that maybe a different map will solve this i dont know what map it has ,and is there any one else out there with the same bike same pipe but different map that doesnt pop im interested to see if we can correct it and as well is that pop harmful at all other than that the bike is awesome
ever thing i wanted times 100 im so so so stoked
oh another thing rode 300 miles and decided that seat sucked so let me get this right Sargent is not making seats fer the 02-04 model anymore and i have to send mine in to have redone uhh what a ***** and another thing im a slender fella 150 pounds on a good day ,the suspension is stiff anybody else can guide me in setting to more towards my weight would appreciate . i have had several other bikes but nothing like a speed triple so any info is appreciated thank yall fer all the knowledge that youve shared it lead me to buy the most awesomest bike i ever could get yeeehaaaaaaaa :-D