Pulley size is the worry here.

The intake isn't restrictive really...so it'll just make quite a bit more noise...you'll probably notice a little better throttle response from it...

The big restriction is in the manifolds/downpipe though...which your purchase will replace. Don't worry about the catback though...it flows fine up to about 350~ WHP. If you want a different noise though, swap out the mufflers.