Welcome George. There's quiet a few pipe options available if all you're looking for more noise. TORs - Triumph Off Road - are probably among the cheapest and good value for money. Staintune also offer something similar but cost a lot more. Plenty of other slip on options. To get the best out of you bike you really need to look at full full systems such as CES (check the Rocket Science thread), Reband (check the Ponters Headers thread), Carpenter, Jardine or Zard to name a few. You'll find info on all those on here.