Vance & Hines Competition Series Exhaust Systems
for YZF-R1 '04-06

• Designed exclusively for drag race applications, this 4:2:1 exhaust is the ultimate design for peak power on stock, heavily modified and nitrous engines

• Quality, lightweight stainless steel construction with tapered headpipes and full merge collectors for maximum performance

• Slip-fit collector joints with "dual swivel end retention springs" and tuned length megaphone with optional baffle

• O2 sensor bung in rear collector for wideband air/fuel ratio monitoring

• Systems weigh approximately 10 lbs.

• All include spring puller tool

• Fuel maps available for many combinations

• NHRA and AMA Prostar contingency fund for all Indy Series Exhausts