Duncan FatBoy 4 Pipe
#1
I just wanted to let everyone who is thinking about replacing their pipe to consider the Duncan FatBoy 4. I put it on with a K&N air filter and rejetted and it made a huge difference in power and speed. My buddy CHAPY rode it, he has a Zilla, and he even was impressed with the power. I'm getting pics of the pipe on and I'll e-mail them to anybody who wants to see what it looks like. Also, has anyone removed the airbox lid and if yes what difference if any did it make. I removed mine and I could not feel a difference. Is there something else I should of done?
#2
You have to rejet with the airbox lid off in order to notice a difference. I talked to chappy and he told me about your jet kit. Pull that out and put a 42 pilot jet in and a 160 main jet. Buy these from your local shop. Sell your jet kit on ebay. My friend has this setup and runs right with me and I have a stage two jet kit. You can ride my 400 on Sunday.
Matt
Matt
#3
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