What Should I Try

[stock350raptor]

I have a 350 raptor and all i have done to it is put a bigger front sprocket. What should i do next that will help my performance out some?

Would it matter if i got a slip on or full exaust?

[ohsobad_chevy]

You can start by buying a honda... Just kiddin' :D I would honestly start with pipe and re-jet. You can get a k & n air filter. I would suggest getting a new air filter and a pipe for starters. You will be suprised on the gains just from the pipe. I would honestly go with the HMF for around $449 for the full system. Might check out hmfengineering.com to see if I am correct on the price.
Let us know what you decided on.

[stock350raptor]

How much difference will there be in a slip on pipe and a full pipe?

[ohsobad_chevy]

The full pipe comes with their head pipe, which is built to their configurations. The full system will give you just a little bit more power than the slip on, from what they tell you. I dont know if it is exactly true or not, but I would recommend getting the full system.