Performance For Your Powersports Vehicle
Millennium Technologies M-Spec Performance big bore kits and stand bore kits are available in multiple configurations depending on the year/make/model of your vehicle.
Read more about our big bore kit packages we offer below. When you are ready to start your service order form, click HERE to start your service order form. Once an order estimate has been submitted, a tech will reach out to you to finalize the estimate prior to shipping. You can also contact our techs direct at: (920) 893-5595.
Service Big Bore Kits
M-Spec Performance Service Big Bore Kits and Standard Bore Kits are based around your modified cylinder. Your cylinder or engine cases are shipped to our state of the art Plymouth, WI facility for a complete suite of modifications and then perfectly matched to a high-performance piston and gasket kit. Custom services and combinations are available.
M-Spec Performance 2-Stroke Big Bore Kits are ported and require modification to your power valve and cylinder head. Some 105cc, 107cc, 144cc and 295cc kits require case modifications. These additional modifications are included in the price if you send us your bare cases. Engines received assembled will require engine rebuilding services and associated parts.
Select M-Spec Performance Service Cylinder Kits are available as a core exchange. The cylinder is a used OEM cylinder meticulously remanufactured to exceed OEM specifications and modified with our proprietary Nickel Silicon Carbide plating process. A good core is required. When we receive your acceptable core cylinder, we credit the core charge back to your card.
Ready to start your service order form? Click below to get started.
Cylinder Kits
M-Spec Performance Bolt-On Cylinders are new standard bore OEM replacement cylinders modified with our proprietary Nickel Silicon Carbide (NSC) cylinder bore plating process. Each M-Spec cylinder has been engineered to exceed OEM cylinder performance and reliability at significantly less cost than the OEM part.
Ready to start your service order form? Click below to get started.
