AeroCharger 
The world's only completely self-contained, ceramic ball-bearing, variable-area turbine nozzle (VATN) turbocharger is available for many applications including automotive, motorcycles, snowmobiles, side-by-sides, and many more.
http://www.aerocharger.com/ |
ATP Turbo
Provider of Garrett Turbocharging components.
http://www.ATPturbo.com/ |
Bio Weapon Fuel
BioWeapon is the first purpose-built “Green” race fuel for club riders. It turns chickens into champions. Engines running BioWeapon make an average of 4% more horsepower than 93 octane pump gas without re-jetting, and 6% after a tune.
http://www.bwfuel.com/ |
Bluegrass Muffler 
Bluegrass Muffler offers mandrel bending services, custom stainless steel exhausts, custom fabrication, performance parts and more for both foreign and domestic autos. U-bends, UJ-Bends, Velocity Stack
http://www.bluegrassmuffler.com/ |
Boost Is Good
Complete kits for Triumphs.
http://www.boostisgood.com/ |
Design Engineering
Design Engineering, Inc with the CryO2 System keeps automotive thermal temperatures cool using CO2. DEI also make Exhaust Wrap and other thermal tuning products to protect areas of extreme heat.
http://www.cryo2.com/ |
DIYEFI.org
DIYEFI.org exists today because we saw a need for a truly open source engine management system, one that you can build for the cost of the components alone. Various other similar organisations exist, but in each case the licensing is unidirectional, i.e. you contribute, and the originator owns your work. Far from ideal!DIYEFI.org is different from the others in many important ways. DIYEFI.org is here to allow YOU to build your own system from scratch with NO restrictions. It's here to facilitate a healthy, open, honest community where everyone benefits equally
http://www.diyefi.org/ |
DR Turbo
Complete kits Japanese bikes.
http://www.drturbo.com/ |
Garrett Engine Boosting Systems
Parts and accessories.
http://www.egarrett.com/ |
Greddy
Parts and accessories.
http://www.greddy.com/ |
Hahn Race Craft
GSXR1000 and Hayabusa turbo kits.
http://www.hahnracecraft.com/ |
HKS
Performance engine, suspension, or drivetrain components. Air filters, exhaust, turbochargers, boost controllers, ignition systems, and fuel systems.
http://www.hksusa.com/ |
Igni Tech
Inductive ignition, capacitive ignition for 2, 3, 4 and 6 cyl. motorbikes. Injection and ignition control unit for competition. Rectifier and charging regulator. Controllers for servo of exhaust valve. Programmable ignition.
http://www.ignitech.cz/english/aindex.htm |
IHI-Turbo
Parts and accessories.
http://www.ihi-turbo.com/ |
Jeg's High Performance 
Turbocharger, supercharger, nitrous, propane kits parts, tools, general parts and accessories.
http://www.jegs.com |
KMS Performance
Parts and accessories for ATV, watercraft, dirt & street bikes.
http://www.kmsperformance.com/ |
MoTeC
The MoTeC ECUs are powerful engine management systems. Developed with racing enthusiasts in mind, they deliver an extensive package of standard features including; a 32 bit microprocessor, Narrowband Lambda control, and eight auxiliary outputs for functions such as 3D boost control, nitrous injection, intercooler spray bars, shift lights and warning alarms to name a few. Optional features available include; Traction Control, Gear Change Ignition Cut, Variable Cam Control, Drive By Wire throttle control, Wideband Lambda sensor and Data Logging.
http://www.motec.com.au/ |
MR Turbo
Complete kits Japanese bikes.
http://www.mrturbo.com/ |
MSD Ignition
Your performance electronic source for ignitions, coils, distributors, alternators, timing controls, lazer gauges, spark plug wires, starters, fuel management, data acquisition and tuners.
http://www.msdignition.com/ |
Orient Express Racing
Race products for Asian bikes. Pop-up fuel caps, turbo's
http://www.orientexpress.com/ |
Powder Lites Inc. 
Custom manufactured snowmobile parts and accessories. Rapid Bike distributor.
http://www.powderlites.com/ |
Power Commander
The Power Commander is a fuel injection and ignition timing (on some models) adjustment unit that plugs inline with the bikes stock ECU (electronic control unit). Changes are made to the bikes fuel and ignition curves via the Power Commander's onboard microprocessor. Using this technology we are able to offer a large area of adjustment without making any permanent changes to the bikes' ECU. Engine management system.
http://www.PowerCommander.com/ |
Rapid Bike
Engine managment systems. Rapid Bike USA has developed unique industry insights into the DNA of Motorcycle Tuning intelligence.
http://www.rapidbikeusa.com/ |
RB Racing
Complete kits for BMW, Triumph, Harley and some Japanese bikes.
http://www.rbracing-rsr.com/ |
RF Biketech
Turbo, supercharger and Nitrous bike kits. Other bike parts and accessories.
http://www.rf-biketech.de/ |
S&R PRO
Motorcycle turbo parts and accessories.
http://www.sandrpro.com/ |
Samco Sport
Silicone hoses.
http://www.SamcoSport.com/ |
Stedman Motor Sports
Turbo systems for V-Rod and Hayabusa.
http://www.stedmanmotorsports.com/ |
TH Motorsports
General automotive race composites. Brembo Brake Fluid, Samco silicone hoses.
http://www.thmotorsports.com/ |
Turbo By Garrett 
Turbo kits for select cars and bikes.
http://www.turbobygarrett.com/ |
turbo-kits.com
automotive turbo kits. Great pricing.
http://www.turbo-kits.com/ |
Turbonetics Inc
Parts and accessories.
http://www.turboneticsinc.com/ |
WesTech
Complete kits for Kawasakis.
http://westech.home.mindspring.com/ |