Collection: ENGINE PERFORMANCE

 

65 products
  • H.S.I. Watthole Dash Recess
    Regular price
    from $35.69
    Sale price
    from $35.69
    Regular price
    $35.69
    Unit price
    per 
    Sold out
  • PROK Performance Air Filter
    Regular price
    $51.95
    Sale price
    $51.95
    Regular price
    $52.83
    Unit price
    per 
    Sold out
  • H.S.I. Hood Seal for Yamaha SJ, WB1 and A/M Hulls
    Regular price
    $37.69
    Sale price
    $37.69
    Regular price
    Unit price
    per 
    Sold out
  • H.S.I. Tall Stack Cyclone Air Filter Adapters
    Regular price
    from $50.69
    Sale price
    from $50.69
    Regular price
    $50.69
    Unit price
    per 
    Sold out
  • H.S.I. Kawi 650cc 44mm Mikuni SBN Carb Setup
    Regular price
    from $474.00
    Sale price
    from $474.00
    Regular price
    Unit price
    per 
    Sold out
  • H.S.I. Billet Throttle Drum
    Regular price
    $25.69
    Sale price
    $25.69
    Regular price
    $25.69
    Unit price
    per 
    Sold out
  • H.S.I. Throttle Cable Bracket
    Regular price
    $22.69
    Sale price
    $22.69
    Regular price
    $0.00
    Unit price
    per 
    Sold out
  • H.S.I. Yam 61X Exhaust Water Restricting Kit
    Regular price
    $65.69
    Sale price
    $65.69
    Regular price
    Unit price
    per 
    Sold out
  • H.S.I. Yam 61X Exhaust Sleeve
    Regular price
    $68.69
    Sale price
    $68.69
    Regular price
    $68.69
    Unit price
    per 
    Sold out
  • H.S.I. 3/8" Dick Bypass Fitting
    Regular price
    $25.69
    Sale price
    $25.69
    Regular price
    $0.00
    Unit price
    per 
    Sold out
  • H.S.I. Kawi 750cc 44mm/46mm Mikuni SBN Carb Setup
    Regular price
    from $474.00
    Sale price
    from $474.00
    Regular price
    Unit price
    per 
    Sold out
  • H.S.I. SuperJet Replacement 38mm Performance Carb Setup
    Regular price
    $750.69
    Sale price
    $750.69
    Regular price
    Unit price
    per 
    Sold out
  • H.S.I. Low 44mm & 46mm Air Filter Adapters
    Regular price
    from $25.69
    Sale price
    from $25.69
    Regular price
    Unit price
    per 
    Sold out
  • H.S.I. Kart Tank 2.25 Gallons
    Regular price
    from $142.69
    Sale price
    from $142.69
    Regular price
    Unit price
    per 
    Sold out
  • H.S.I. 38mm Short Cyclone Air Filter Adapter
    Regular price
    from $32.69
    Sale price
    from $32.69
    Regular price
    Unit price
    per 
    Sold out
  • Antigravity Small Case Lithium Battery
    Regular price
    from $220.00
    Sale price
    from $220.00
    Regular price
    Unit price
    per 
    Sold out
  • H.S.I. Specialty Exhaust Manifold Gasket
    Regular price
    $21.69
    Sale price
    $21.69
    Regular price
    Unit price
    per 
    Sold out
  • H.S.I. Inline Water Restrictor
    Regular price
    $12.69
    Sale price
    $12.69
    Regular price
    Unit price
    per 
    Sold out
  • H.S.I. Billet Water Manifold
    Regular price
    from $35.69
    Sale price
    from $35.69
    Regular price
    Unit price
    per 
    Sold out
  • ADA Yam Girdle 701/760 High Comp. Head Kit
    Regular price
    $421.95
    Sale price
    $421.95
    Regular price
    $442.64
    Unit price
    per 
    Sold out
  • H.S.I. Kawi JS550cc 44mm Mikuni SBN Carb Setup
    Regular price
    from $463.00
    Sale price
    from $463.00
    Regular price
    Unit price
    per 
    Sold out
  • H.S.I. Factory Pipe Lord Mounts
    Regular price
    from $6.69
    Sale price
    from $6.69
    Regular price
    Unit price
    per 
    Sold out
  • Jet Works Pro Flow Control Valve 3/8"
    Regular price
    $56.00
    Sale price
    $56.00
    Regular price
    $56.00
    Unit price
    per 
    Sold out
  • H.S.I. Kawi 550SX 44mm Mikuni SBN Carb Setup
    Regular price
    from $474.00
    Sale price
    from $474.00
    Regular price
    Unit price
    per 
    Sold out
  • H.S.I. Yam High-Flow Dual Fuel Pickup
    Regular price
    $75.69
    Sale price
    $75.69
    Regular price
    Unit price
    per 
    Sold out
  • H.S.I. Yam Twin Billet Carb Bracket
    Regular price
    from $30.69
    Sale price
    from $30.69
    Regular price
    $35.69
    Unit price
    per 
    Sold out
  • SE Stainless Performance Air Filter
    Regular price
    $118.00
    Sale price
    $118.00
    Regular price
    $120.00
    Unit price
    per 
    Sold out
  • H.S.I. Billet 62T / 64X Carb Manifold Plate
    Regular price
    from $75.69
    Sale price
    from $75.69
    Regular price
    Unit price
    per 
    Sold out
  • MSD Enhancer Yamaha 650/701
    Regular price
    $430.95
    Sale price
    $430.95
    Regular price
    $479.00
    Unit price
    per 
    Sold out
  • KP Adjustable Battery Tray
    Regular price
    $145.69
    Sale price
    $145.69
    Regular price
    $0.00
    Unit price
    per 
    Sold out
  • BUN Freestyle Aluminum Water Box
    Regular price
    $450.00
    Sale price
    $450.00
    Regular price
    Unit price
    per 
    Sold out
  • ADA OEM Exhaust Mount Bracket
    Regular price
    $45.00
    Sale price
    $45.00
    Regular price
    $45.00
    Unit price
    per 
    Sold out