RELEASE THE BEAST Take your 40hp EFI Vanguard to the next level with our BEAST Performance Package, engineered to deliver serious gains while keeping your engine reliable. This upgrade unleashes over 52 horsepower and 60 ft-lbs of torque, giving you the muscle to push the heaviest loads with confidence. Built with proven components and precision-matched parts, the BEAST package is designed for maximum power, torque, and durability; perfect for those who want both performance and dependability. What’s Included: K&N high-flow air filter Left & right BPS performance cylinder heads Performance camshaft 2 × Head gaskets 4 × Competition pushrods Neptune EFI controller 2 × Valve cover gaskets 4 × Tappet valves 2 × Intake gaskets 2 × Muffler gaskets 4 × Performance roller rockers Muffler option available Core Charge & Refund Policy Every order includes a $200 refundable core charge. Here’s how it works: Purchase: The $200 refundable core charge is included in the price of the set. Return: You are responsible for shipping your old heads (cores) back to us. Returned heads must be free of cracks and broken bolts. Inspection: Once we receive them, we send the cores out for inspection. This process can take a few weeks. Refund: If the cores are in reusable condition, we’ll refund the full $200. If the cores are not reusable, no refund will be issued and you will be notified. If you’d like them returned, you will be responsible for shipping costs. We explain this policy upfront so there are no surprises, our goal is to make the process smooth and transparent. 12A. Muffler Option - Rapid Muffler 12B. Muffler Option - Quiet Muffler ×