I have a bone stock (mint) 83. I am thinking about getting a 4 into 1 exhaust for it. Will I notice a difference in power, and will the carbs need to be adjusted to it?

 

I'm sure you would need to change your jets on it. I would think it would also be a little more powerful than the factory exhaust. On my KZ, it starts feeling restrictive once you get past 7k. I bet a good exhaust would take care of it. Hell, I should look into that too! Maybe a little bit later though when I have more money to through into it.