In a couple of months im finally getting a Hmf exhuast.It took me awhile to decide.But im going to get a quiet core for aroung the house and the regular setup for the dunes.Is the quiet core really worth it.I do need quiet riding around my house(grouchy neibors).But when i ride in the dunes i like it really loud(no decibal requirements)!I live in indianna.And was wondering if anybody knows the elavation for jetting purposes.When i get one ill have my mechanic do it all.Any answers will help big time.