Meryt Sticker frog with firecracker drawing 10x8.5 cm

Aggressive pulling power with a distinctive sound; the Reaper 521 grind excels on 114” and larger engines with increased compression ratio Prepared cylinder heads are not required but complement the camshaft and increase power across the range The stock throttle body provides an excellent power range; a high-flow model can further increase peak power A high-flow exhaust system and air filter are highly recommended for optimal performance EU: Aggressive pulling power and "mean" sound, the Reaper 521 grind excels on 1.87 L and larger engines with increased compression ratio RPM Range: 2,250–6,250 rpm Made in the USA Camshaft characteristics measured in-engine at the tappet @ 0.050 with a rocker ratio of 1.61. Feuling recommends pairing the 521 camshaft with the Race Series lubrication system. Requires high-lift springs. Reinforced one-piece pushrods also highly recommended.