Predator 212 Hemi Stage 1 Speed Kit vs NR Racing Stage 1 Speed Kit 212 Predator

These are the same Stage 1 hop-up kit for two different 212cc Predator engines, so the deciding factor is which engine you own. The Hemi kit fits the 224cc "Max Performance" Hemi Predators and adds an offset timing key; the non-Hemi kit fits the standard OHV 212 and explicitly will not fit a Hemi. Both claim roughly 10+ HP, include the open air filter, adapter, choke bracket, jet, 18 or 22lb valve springs and valve cover gasket, and both need an upgraded flywheel because stock flywheels are known to fail. Owners report a real seat-of-the-pants gain and simple bolt-on installation; the main complaints are jetting that needs checking against your stock jet and the extra cost of a billet flywheel.

• Choose the Hemi Stage 1 kit if your engine is a 212 Hemi or 224cc Max Performance Predator and you want the offset timing key included.
• Choose the non-Hemi Stage 1 kit if you have a standard OHV 212 Predator and want the NR Racing-recommended package.