Thanks for the replies everyone, don't really want to be going down the turbo route, not yet anyway lol, heard that bob cams are worth while putting in..

I have a full stainless steel mongoose exhaust system for it, not do much in the way of tuning it but hoping it should make it sound well

Anything else worth while putting in that isn't overly expensive? I've heard that putting in a good tubular manifold is good for them, but don't know anyone that has actually done it