stock 05 exhaust

[99_300ex]

Ok so I have a 05 450 and its got a 13 to 1 comp piston and a cam not sure which stage. So my question is will I be alright running the stock exhaust I had an hmf but its just too loud for my riding area now ans the headers stock to btw. Thanks.

[fastredrider44]

As long as you rejet, you will be ok.

[99_300ex]

Any idea on where to start?

[xspoilerx]

Hmf makes a quite core you can put in your pipe