Blow Off Valve

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Why Does Your Turbo Vehicle Need a UTV Blow-Off Valve? A UTV blow-off valve, or BOV, protects your turbo system by venting excess boost pressure when the throttle closes. On a stock Polaris RZR XP Turbo, the factory BOV is plastic and tends to warp over time, letting boost leak and costing you horsepower. An aftermarket blow-off valve kit replaces that weak link with a machined billet aluminum unit designed specifically for turbo vehicles. Brands like Aftermarket Assassins and RPM Powersports build their BOV kits to fit directly onto the stock plenum, so installation is straightforward and does not require cutting into your boost tube system. Many kits also include an optional air filter or pre-filter to keep dirt and dust out of the vent port, which is a smart addition for riders who spend time in muddy or dusty conditions. The biggest reason to upgrade the blow-off valve on a Polaris RZR is throttle response. When you lift, a properly set-up BOV relieves pressure instantly and keeps the turbo spinning instead of letting boost back up against a closing throttle plate. That means faster spool on the next acceleration and cleaner power delivery throughout the run. Options include valves that recirculate air back through the system to help prevent dirt ingestion, and true vent-to-atmosphere setups that produce the signature BOV sound. Why Choose Fueled UTV? Fast shipping Most orders ship the same day from our warehouse. 100,000+ SKUs in stock The largest UTV parts selection online Real support Talk to riders who know and can help you find the right fit. FAQ What is a UTV blow-off valve and what does it do? A blow-off valve (BOV) releases excess boost pressure from the intake system when the throttle closes. This protects your turbo vehicle from pressure spikes and helps maintain throttle response on the next acceleration. Does a blow-off valve kit fit the Polaris RZR XP Turbo? Yes. Aftermarket Assassins and RPM Powersports both produce blow-off valve kits designed spe