Guarantee: If for any reason you are not completely satisfied with Pulstar®, simply return it within 30 days along with proof of purchase for a no questions-asked refund. We do not refund shipping costs.
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 may require a colder heat range pulse plug in order to avoid possible damage to your engine. For these applications, please call us at 888-800-6700 (1-505-842-5201 for International calls).