I live near the coast and after only a short time of having my bike here I already see some pitting in the chrome and discoloring. I'm thinking of taking stock exhaust off (and storing for another day) and putting on a 4-1 or 4-2. My mechanic recommended Vance and Hines but I can't find any online that say they fit a 71. Can anyone recommend a really good exhaust system (with a nice note) or point me to where I can find some V&H pipes for my 71?