Have you gone to the Effects section and searched there? All your questions, and all the answers to all the questions that will naturally follow, are there!
Welcome to TB
The first thing I reccomend the same thing to everyone who asks this kind of question,
Check out bassfuzz.com it's a great site run by our own Grygrx, he is pretty much the resident fuzz expert.
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Warwick club member #44 - I has Cream Pie #4. WTB-Gibson Grabber G-1