07 YZ250F In California
I live in California and ride an 07 YZ250F bone stock and Im looking to get more power and low end grunt out of my 250 and I heard the big bore kits were a good way to go. If I got the big bore kit what else should I add on with it to get the best gains. But please keep in mind that I need exhaust with a spark arrestor and it cant be louder than 96db so I can still ride state parks. Also If you have any better ideas they're all welcome.