Thunderheader Touring

Thunderheader Touring

• 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.

Race waiver needed for California customers (Click Link to Access)