Thunderheader X Series M8 Softail

Thunderheader X Series M8 Softail

• Designed to give maximum horsepower without sacrificing low-end torque
• 2-into-1 systems with patented collector design that directs spent exhaust gases in a spiral motion through four acoustical damping chambers
• Exhaust travels through these chambers at high velocity to scavenge spent exhaust gases from the combustion chamber and bring in a fresh charge of air/fuel mixture
• Anti-reversion design works to impede reverse flow through the system -- reverse flow can contaminate the incoming fuel/air mixture, which reduces performance and throttle response
• As reverse flow enters the collector, the diffuser deflects it through vents; the pyramidal trap and apertures impede the reverse flow, allowing time for the exhaust valve to close
• Flow director has equal area at each end, allowing exhaust gases to travel at a constant velocity over the entire length to improve exhaust scavenging
• Includes a set of full-coverage heat shields

Current lead time is up to 16 weeks on all Thunderheader Racing Products, we do not stock them.

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