Engine

  • Sale! Sale!
    2026_07_25_3144
    PROX Steel Exhaust Valve – Yamaha TTR125
    Original price was: €20.13.Current price is: €6.03. Add to cart
  • Sale! Sale!
    2026_07_22_450382
    PROX Steel Exhaust Valve – Yamaha WRF/YZ400/426F
    Original price was: €28.84.Current price is: €8.65. Add to cart
  • Sale! Sale!
    2026_07_24_828149
    PROX Steel Exhaust Valve – Yamaha YFM350 RAPTOR/GRIZZLY
    Original price was: €34.52.Current price is: €10.35. Add to cart
  • Sale! Sale!
    2026_07_24_828161
    PROX Steel Exhaust Valve – Yamaha YFM660 RAPTOR/GRIZZLY
    Original price was: €29.85.Current price is: €8.95. Add to cart
  • Sale! Sale!
    2026_07_22_450554
    PROX Steel Exhaust Valve Conversion Kit – KTM
    Original price was: €149.38.Current price is: €37.34. Add to cart
  • Sale! Sale!
    2026_07_25_3182
    PROX Steel Exhaust Valve Conversion Kit – KTM
    Original price was: €149.38.Current price is: €37.34. Add to cart
  • Sale! Sale!
    2026_07_22_450439
    PROX Steel Exhaust Valve Conversion Kit – KTM/Husqvarna
    Original price was: €149.38.Current price is: €37.34. Add to cart
  • Sale! Sale!
    2026_07_22_450458
    PROX Steel Exhaust Valve Conversion Kit – KTM/Husqvarna
    Original price was: €149.38.Current price is: €37.34. Add to cart
  • Sale! Sale!
    2026_07_22_450113
    PROX Steel Exhaust Valve Conversion Kit – Suzuki LTR450
    Original price was: €137.77.Current price is: €34.44. Add to cart
  • Sale! Sale!
    2026_07_25_3152
    PROX Steel Exhaust Valve Conversion Kit – Yamaha
    Original price was: €149.38.Current price is: €37.34. Add to cart
  • Sale! Sale!
    2026_07_22_450018
    PROX Steel Intake Valve – Suzuki DR-Z400 E/S/SM/KLR400R
    Original price was: €17.66.Current price is: €5.29. Add to cart
  • Sale! Sale!
    2026_07_22_450224
    PROX Steel Intake Valve – Yamaha YFM350 RAPTOR/GRIZZLY
    Original price was: €23.26.Current price is: €6.97. Add to cart
  • Sale! Sale!
    2026_07_22_449844
    PROX Steel Intake Valve Conversion Kit – Kawasaki
    Original price was: €149.38.Current price is: €37.34. Add to cart
  • Sale! Sale!
    2026_07_24_827875
    PROX Steel Intake Valve Conversion Kit – Kawasaki KXF450
    Original price was: €153.07.Current price is: €38.26. Add to cart
  • Sale! Sale!
    2026_07_25_3163
    PROX Steel Intake Valve Conversion Kit – KTM
    Original price was: €149.38.Current price is: €37.34. Add to cart
  • Sale! Sale!
    2026_07_24_828257
    PROX Steel Intake Valve Conversion Kit – KTM
    Original price was: €149.38.Current price is: €37.34. Add to cart
  • Sale! Sale!
    2026_07_24_828114
    PROX Steel Intake Valve Conversion Kit – KTM/Husqvarna
    Original price was: €149.38.Current price is: €37.34. Add to cart
  • Sale! Sale!
    2026_07_22_449940
    PROX Steel Intake Valve Conversion Kit – Suzuki RM-Z450
    Original price was: €137.77.Current price is: €34.44. Add to cart
  • Sale! Sale!
    2026_07_24_827981
    PROX Steel Intake Valve Conversion Kit – Suzuki RM-Z450
    Original price was: €137.77.Current price is: €34.44. Add to cart
  • Sale! Sale!
    2026_07_25_3116
    PROX Steel Intake Valve Conversion Kit – Yamaha YZ450F
    Original price was: €137.77.Current price is: €34.44. Add to cart
  • Sale! Sale!
    2026_07_24_827920
    PROX Titanium Exhaust Valve
    Original price was: €91.59.Current price is: €27.47. Add to cart
  • Sale! Sale!
    2026_07_22_441439
    PROX Titanium Intake Valve
    Original price was: €103.58.Current price is: €25.89. Add to cart
  • Sale! Sale!
    2026_07_22_449786
    PROX Titanium Intake Valve
    Original price was: €91.59.Current price is: €27.47. Add to cart
  • Sale! Sale!
    2026_07_22_442635
    PROX Titanium Intake Valve
    Original price was: €98.65.Current price is: €29.59. Add to cart