My car has a complete 2.5 inch Accurate Exhaust system with stainless factory style challenger tips. It is quite and comfortable so the gear noise is noticeable, and it isn't as noticeable in 3rd (which is of course straight through). As I previously mentioned maybe it will quieten down with more miles. The hemi box I removed was quieter, but who knows how many thousands of miles it has on it? Just my .02 and experience so far . jess