Does anyone know what the difference is between the FMF Moto Powerbomb and the SX Powerbomb header?

The FMF Powerbomb SX header is said to increase low and mid range power...It really does, as well as increase top end power. It's also quieter than stock and well tucked in.

Just wondering if the fmf powerbomb fx header will work with the stock wr muffler uncorked?

Yes, the Powerbomb "SX" will fit the stock WR or YZ muffler, and work well corked or uncorked...

the difference between powerbomb moto and powerbomb sx is? " $100 "

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