I'm already looking to supe up the 450x and looking for opinions on the following:
1. What's a great pipe for this bike? I live in CA and need to adhere to 96db and spark arrestor.
2. What's the the best jetting?
3. Any BTDT's on the Power Bomb header? Would be interested in people's take on these contraptions.
4. Are there any air filter upgrades yet? Is a K&N worthwhile and are they much more difficult to get in and out?
Opinions on any of the above greatly appreciated.
Thanks in advance,