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

Tapered head pipes and full merge collectors for maximum performance

Slip fit collector joints with “dual swivel end retention springs”

Tuned length megaphone with optional baffle

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

Weighs only 10 pounds, over 38 pounds lighter than the stock Hayabusa exhaust and only 10.2 pounds, over 18 pounds lighter than the stock ZX-14 exhaust

Includes oil cooler bypass kit (Hayabusa) and spring puller tool

Fuel maps available for many combinations

NHRA and AMA Dragbike contingency fund for all Indy Series Exhausts

Lower fairing modification required on Hayabusa, adhesive cut-out template supplied

Installation Guides