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RIVA FX Velocity Stack
 
 
Designed to increase horsepower and torque throughout the RPM range on your FX140 or FX High Output. Our easily installed Velocity Stack Kit replaces the restrictive factory flame arrestors providing improved throttle response and top-speed. Kit includes four Velocity Stacks machined from billet aluminum that utilize o-ring seals and set-screws to lock onto throttle body and are anodized to prevent corrosion. Sold in sets of four.
NOTE: RIVA FX Power Filter RY1325 is required when using Velocity Stacks to meet U.S. Coast Guard certified flame arrestor requirements. Power Filter is designed to work in conjunction with Velocity Stacks so as to optimize performance.

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RY1325-VSK VELOCITY STACK KIT, FX 02-08 $ 159.95 Add to Cart
RY1325 FLAME ARRESTOR ONLY, FXHO/140 $ 99.95 Add to Cart
 
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