I own a 1998 300ex with a supertrapp pipe.When i bought the atv i noticed the pipe was gutted thus making my ex VERY VERY loud.I am getting a sparks exhaust and i was wondering if i should get it with the spark arrestor or with out?

 

oh yeah i recently put on 20in tires compared to 22's and i was wonderig if it would be a good idea to put on like a 16t front sprocket and still have trail ride-ability?