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Beachcruiser 12-20-2007, 12:48 PM Im in the market for a new exhaust.....i've been reading threads among threads and still haven't found an answer. For the money.....what would be the best set up to go with, 4", 5", cat delete, muffler delete? I have a stock LBZ.....for now. Really looking for a increase in mpg and alittle louder. Any suggestions???? Thanks BudTX 12-20-2007, 01:09 PM An exhaust will probably not make a measureable impact on fuel efficiency. For the money, a 4" straight pipe (downpipe back) will probably be the least expensive. It will be a bit louder than stock, and will reduce your EGTs. Keep in mind that you may have to fingerstick it (or similar) to keep codes at bay if you lose the cat. Beachcruiser 12-20-2007, 02:15 PM Is the fingerstick your talking about the same FS that you install when you have a blocker plate? | ||