Hey all, I am getting an 04 600 and wanted to get probably a yosh bolt on or slip on. I have heard that it is better to wait to break in the engine first. Is this true or a bunch of Bullsh*t? Any opinions, please let me know. Thanx

ok so never mind, the topic is already been handled..... Sorry I am a dick. Just woke up and didnt see the post about this already.