Hi all, this is my second post on these boards. I just bought a 87 yj that needs some work and i had hoped you guys/girls can help. Firstly...it needs a new muffler. do i buy a cheap cruddy muffler, or do i go all out and get a borola or something nice? Is the price of the borola worth the performance? Second....I'm runnin 35's so I want to increase the horsepower of the wimpy but sturdy 4.2L engine. What are some cheap ways you can do that? Lastly... i think i need to replace the carborator. Do I buy a used stock one for $40, or get an aftermarket upgrade. I hear the stock ones can have problems at higher grades but I do mostly mud and trail adventures, not alot of hard climbing. Thank you in advance for answering any or all of the questions!! See ya on the trails!