Welcome to Motorcycle Performance Specialties online! We have been a manufacturer and distributor of motorcycle performance products since 1980. We take great pride in all products that we manufacture or distribute. This web site is constantly being updated to give you the latest information about all the products we sell. The buttons on the top of the page and the catalog navigation bar will help you navigate quickly to the parts in which you are interested. Passing your mouse over the catalog navigation bar buttons will drop down the included categories.
Follow the MPS / Thyen Racing Pro Mod at the races
MPS/JDRF “Racing For A Cure” T-shirts
On Sale $15 (ALL proceeds go to JDRF)
These racing T-shirts were made in collaboration with “Tommy’s Troopers” (a walking team for the annual JDRF fund raiser), MPS racing and Thyen Racing. Dan and Beth (of MPS) and Mike Thyen (owner of the MPS/JDRF sponsored Pro Mod Suzuki Hayabusa) all have family members or children with Type 1 juvenile diabetes! Click here for more details and to order a T-shirt to support this great cause.
Check out our USED PARTS page
including Dan's "Electronics Garage Sale"
PRODUCTS NOW available at MPS
Kevlar Gloves
Due to popular demand, we are once again stocking Kevlar gloves. These gloves are made with metal padding for extra protection to your entire hand. Gloves are very light and very comfortable to wear.
MPS' new "Lethal Injection" combines the popular MPS Spyder Dry Nitrous System and the new Holley EFI ECUs to get the best possible horsepower and tunability of any nitrous/fuel system. MPS has been working with Holley to use their HP & Dominator EFI systems on Hayabusa and other motorcycle applications for quite some time. We have all the parts needed to install either the Dominator or HP systems on your Hayabusa. These systems use the stock Hayabusa crank and cam triggers so you won’t need aftermarket trigger plates. Both units feature self-tuning, data logging (2GB), integrated 4 stage progressive nitrous control, turbo boost control, water/methanol injection control, integrated wide band O2 sensor (NTK or Bosch), and individual cylinder tuning. All fuel tables are in lbs/hr not an arbitrary number like most units. Closed loop fueling strategies for normally aspirated, turbo, and nitrous. Both units are completely tunable with a laptop or the optional 5.7” touch screen.
High Flow Fuel Injectors
The Hayabusa 62# injectors flow almost 3x more fuel (650cc/min) than standard 24.5 lb. stock Hayabusa injectors. They are ideal for dry nitrous and turbo applications where much more fuel is needed. We can flash your 2002 and up ECU with a base map for these injectors. This makes tuning easy. For you really high horsepower guys we now have 80# injectors that flow almost 4x stock injectors. Both sizes fit in the stock fuel rail perfectly. The kit comes with everything necessary to install including new injector connectors.
Clic Magnetic Readers are here
We are now stocking the cool and convenient Clic® reader glasses that Dan wears in the shop and at the track. Never loose your glasses again!
MPS Hayabusa Billet Block
Our new Hayabusa Billet Block is designed for motors running dry as they have no water jackets. Made of aircraft billet aluminum these high quality blocks add rigidity to the entire engine. The stud holes are sized for ˝” cylinder studs, but can also be used with 10mm studs. The Hayabusa Billet Blocks are available in a ready to plate 81mm bore size or completely finished and plated in 81mm, 83mm, or 84mm. We also offer special order 85mm or 86mm with offset bores and taller deck heights.
MPS is now stocking Shinko &
Mickey Thompson Tires!
Press Releases and Race News
