[Raptor0731]

Any of you run the Fat Boy 4?

 

[Sontag_Slim]

I did on YFZ......loved it! good sound and good preformance :thumbsup:

 

[Raptor0731]

They seem kind of expensive. It looks like I could get the duals for about their price.

 

[beetlejuicewhome]

Real expensive. I sold mine. The Vortex EFI unit that is mapped for the Duncan pipe is a POS. I would go with Sparks or LTE/Barker duals.

 

[Raptor0731]

Thank you sir :thumbsup: