For Racing use only. 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 individual 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. - Includes oil cooler bypass kit and spring puller tool. - Fuel maps available for many combinations

Fits: > Suzuki: 99-08 GSX-R1300 Hayabusa