This is my 99 ZRX1100.  Bought it new the first year of production and absolutely love it.  It’s been tweaked a bit here and there, here is a list of the gofast stuff:  Muzzy meg, Ivan’s stage 3 jet kit, ZX11 cams (intake degreed to 103), gearing change with +2 teeth on aluminum Sprocket specialists rear sprocket, a pair of Ohlins shocks, and Carl Shoup’s damperless clutch hub.  The Corbin seat has been reshaped so much it hardly qualifies as a Corbin anymore.  Stainless braided front brake  lines and Spiegler ABM rotors provide stopping power. Other add-ons include a steering damper from a custom made damper mount by a member of the ZRX Owners Association, uses a stock GSXR damper, clipon handlebars from Convertibars,  Tsukigi fork brace  and rearsets, 45 degree throttle from Works, carbon fiber for the top clamp.  A battery lift kit made by a member of ZRXOA (Ted Dake) enlarges the underseat storage.  Also decided to clean up the rear fender  with a fender eliminator kit.  Another ZRXOA member makes an aluminum torque arm for the rear brake, goes by Harpoon.  Got a polishing bug years ago, there’s a list for that too: swingarm, chain guard, rim edging, forks, grab handles, brake/clutch levers, part of the front brake calipers, radiator side tanks, fork brace, steering damper, rear brake arm and the gas tank.  Exhaust was pulled, ceramic coated black.  Started replacing a few nuts and bolts with titanium from Titanium Performance.  So far, got the fork pinch bolts, upper/lower triple clamp pinch bolts brake caliper mount bolts, front fender bolts, fork brace bolts, steering damper c-clamp bolts, top clamp nut and front rotor mount bolts.  If you own this bike you have to go to the ZRXOA site.  The support this place offers is unbelievable.  Discounts for group buys and many other merchants offering discounts.   Email me if you have any questions or comments.  More ZRX