CAUTION: Pulstar™ model recommendations are for
stock, unmodified engines. If you have added an aftermarket
turbocharger, supercharger, nitrous or any other product that
increases displacement or compression to your engine you will
require a colder heat range pulse plug in order to avoid
possible damage to your engine. For these applications please
see our other great product Direct Hits® or call us
at 888-639-9750