Exhaust

The T-4 System is a tunable version of our more exotic Ti-4R System. RC-4 Resonance Chamber has been added to the head pipe to reduce noise. (The RC-4 Resonance Chamber, depending on year of your bike, might not come with the system.)

Unparalleled performanceIncrease in horsepower and torque gains will be noticed across rpm rangeElectroless nickel plating increases part life 2-10x longerStamped AKDQ high quality carbon steelHand welded and pounded seamsNot legal for use in California...

Carbon, Fiberglass and Dupont™ Kevlar® composites for super high impact strengthOur special blend of high temperature resins for long life and high strengthHi-strength clear coat for great looking carbonSpecial DEI Hi temp Coating on under side to resist...

Carbon, Fiberglass and Dupont™ Kevlar® composites for super high impact strengthOur special blend of high temperature resins for long life and high strengthHi-strength clear coat for great looking carbonSpecial DEI Hi temp Coating on under side to resist...

Extruded from aircraft 6060 T6 alloyCompletely repackableMaximum performance, minimum noiseFits stock pipes as well as aftermarket pipes

Extruded from aircraft 6060 T6 alloyCompletely repackableMaximum performance, minimum noiseFits stock pipes as well as aftermarket pipes

ALL PIPES ARE ELECTRO-NICKEL PLATED FOR A NON-CHIP FINISH THAT WILL NOT DISCOLOR EXCEPT THE FACTORY PIPE WHICH HAS HAND POUNDED WELDS AND NO COATING&MDASHAVAILABLE IN FATTY FOR AN ALL-AROUND POWER INCREASE THROUGHOUT THE POWER RANGE, GNARLY FOR MAX LOW...

For an all-around power increase throughout the power range!All pipes are electro-nickel plated for a non-chip finish that will not discolor except the Factory pipe which has hand pounded welds and no coating—just like the works bikes

The next evolution in Powerbomb developmentSubstantial power increases everywhereConstructed of extremely lightweight military titaniumIncreases horsepower as much as 5hpProduces long header torque combined with short header over-revHelps reduce sound...

All new incorporating the latest in Resonance Chamber TechnologyPatented core shape lowers sound level while maintaining maximum power outputPatented canister shape increases internal volume for more sound absorbing materialPatented chamber design to...

Pentagonal-shaped mufflerMaximized internal volumePolyresonant duplex front chamberStepped, two-stage core baffleSpark Arrestor/Sound Insert Compatible

Yoshimura has been working extensively with OE’s and factory racing teams to develop racing-oriented parts that can also benefit the weekend warrior. Because we take racing seriously, we have utilized the most technologically advanced equipment available...