321B "Samurai" 3-Port .21 Engine Combo w/2090 Tuned Pipe

321B "Samurai" 3-Port .21 Engine Combo w/2090 Tuned Pipe

Protek RC

  • $ 439.99
  • Save $ 103.99


ProTek R/C 2090 is a finely-crafted competitive .21 off-road tuned pipe that features a mirror like chrome finish and high strength welded nipple. Designed with a narrower, longer body, the 2090 is ideal for increased bottom end performance and small track optimization.
Samurai 321B Features:
  • Includes 2090 Tuned Pipe and Manifold
  • Superior tunability
  • Low CG cooling head
  • Increased fuel mileage
  • Unrivalled power
  • Smooth and responsive power band
  • Custom 7 & 8mm elliptical restrictors
  • Ceramic rear bearing
  • ABC piston and cylinder
  • Ultra hot ProTek P3 turbo glow plug
  • Strengthened black-coated crankcase

    Tuned Pipe Features:
  • Included manifold
  • Mirror chrome like finish
  • Durable high-strength welded nipple
  • Narrow, long body design
  • Maximum low-end performance


  • Specifications:
    Displacement: 3.46cc (0.211cu.in.)
    Bore: 16.6mm (0.654in.)
    Stroke: 16.0mm (0.630in.)
    Practical R.P.M.: 3,000 - 40,000
    Power Output: 2.5ps / 34,000 R.P.M.
    Weight: 355g (12.52oz)

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