M-SPEC PERFORMANCE PRODUCTS AND SERVICES
Developed over 20 years of racing experience and professional race team partnerships, M-Spec is the world’s largest offering of Big-Bore Kits, CNC 4-Stroke Cylinder Head Ports, and 2-Stroke Performance services.
Some popular M-Spec products include M-Spec bolt-on billet and bolt-on cast big bore kits for ATV and UTV application like the 625cc kit for the RZR570 and 1109cc kit for the RZR1000.
M-Spec Service Big Bore Kits are based on modified OEM cylinders and M-Spec has applications for everything from 1050cc kits for a new Yamaha R1 Sportbike, 300cc kits for new KTM 250SX and 468cc kits for popular older models like the Honda TRX450R ATV.
Millennium Technologies works with the best cylinder head shops in the world to develop race proven CNC 4-Stroke cylinder head porting and cylinder head modifications. These state of the art cylinder head modifications are designed to work with our M-Spec Big Bore Kits and standard bore applications.
The 2-Stroke revolution is real and Millennium Technologies offers the worlds best 2-Stroke Big Bore kits that come complete with cylinder porting, cylinder head modifications, and parts specifically for your application and riding style. Popular kits like 295cc YZ250. 144cc CR125 and 265cc CR250 truly make older 2-Strokes equal or better than modern 4-Strokes.
All M-Spec products and services are available as kits or Millennium Technologies offers complete engine assembly services to take your motor from stock to M-Spec start to finish.