Two Brothers Racing MX M7 Aluminium Slip-on Systems. Using only the highest quality materials available, the M7 is built to last. Our exclusive use of a stainless steel spiral perforated core, designed further enhances the sound attenuation properties of the muffler, while still increasing the HP and torque of each model. All systems include 6061 AL with magnesium endcaps, and removable spark arrestors. NB Two Brothers Off Road Exhausts are supplied as Can only, without any connecting pipe.
KTM 450SX-F 07-09, 250SX-F 09