Home > Kyosho > Nitro Engines >   Kyosho SIRIO STI .21 5 PORT OFF-ROAD
	List Price: $489.99 Our Price: $299.95 You Save $190.04! Product Code: KYOS21CL7BSTI

Description   Sirio has introduced their STI line up of engines. STI engines have all the "extra" touches that a true "team" engine has and they are now available to the public. STI engines feature serialized crankshafts, cases and rods for better quality control. Each crankcase is hand selected and blue printed for the best tolerances. The sleeve is hand matched to the case to improve the flow through all the ports. The connecting rod features a surface treatment that ensures maximum strength. The crank shaft has an aerospace coating to improve durability and performance. Premium bearings are hand matched to the crank shaft and case tolerances. Add this all up and you have true factory team performance. S21BXSTI TQ'd the 2005 ROAR 1/8th buggy nationals in four consecutive rounds. The port timing and crank timing have been developed to produce "driveable" horsepower. There is no more technically advanced buggy engine on the market.

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