The FatBoy4

[450rboy]

does any one got the fatboy4. if you do can you tell me how it does.

[KYmxracer52]

One of my friends has it on his 450R and 440EX. He really likes the FatBoy 4. The craftsmanship is 100%. Mounts are milled out of billet aluminum, and they are not overly loud. Also available with a sparkarrestor.

[450rboy]

Originally posted by KYmxracer52
One of my friends has it on his 450R and 440EX. He really likes the FatBoy 4. The craftsmanship is 100%. Mounts are milled out of billet aluminum, and they are not overly loud. Also available with a sparkarrestor.

how much is it with the sparkarrestor

[900rracer]

I got number 46 out of the first 50 made. I love it. The workmanship really is that nice. The welds are clean and solid, the mounting brackets are real nice and the fit was perfect! Duncan built a quality product here. I race MX District 5 and I pull holeshots over YFZ's all day (even though I have only raced twice this year) and I took two second place finishes at Steel City District Five Spring Series races in the open B class. I also have the HRC kit, along with AC nerfs, bumpers, Tag bars, and Holeshot MX tires. I'd recommend the FATBOY 4 to anyone looking for a full system.

[450rboy]

how much does it cost with the spark arrester and without it

[900rracer]

I paid $499 for the full system with jets. Don't know about the spark arrestor though.