so you keep the base and simply change the appearance

Non-professionals would have to put serious effort into an equivalent assembly

1983 Z - 440cc

2018 NINJA ZX-6R 636cc

MOLY and Other High Pressure Additives

kuryakyn hi five mach 2 air cleaner for harley BS90 so you keep the baseImpress with it's beauty and stun with it's performance! The new and improved Mach 2 is the best performing, best looking, and best fitting air cleaner on the market today. Not only can the Mach 2 support well over 140hp, it's look can be customized and individualized to meet the needs of the most demanding riders with available themed medallions to mesh inserts and everything in between. Lead the pack and look good doing it! Includes lifetime