which exhaust should i get for a yfz 450 thats not that loud

 

i had the same problem that you have. i wanted the power of a new pipe but my dad didnt want me to get a loud pipe. i finally decied to get a HMF pipe. i got it because it was cheap (just over 200 dollers), it gives big gains, you can get them in different colors, and it is quiet with the quiet core in. the stock yfz is about 89db with the quiet core in my yfz was 92db. so it is only 4 db over stock. with the quiet core in you will not have huge gains but you can take the quiet core out at places like atv parks that dont have db limits and when you do that you get huge gains. i have been very happy with this pipe.

Maha