RPM Outlet’s never ending quest for performance has led us to a proven ignition upgrade that will increase performance and provide unheard of increased horsepower, durability and longevity at the same time. Our research has lead us to a company that has been developing new technology for over 20 years. Zex is the one of the largest manufactures of Nitrous Oxide systems and accessories. We found that they have been manufacturing complete line performance spark plugs for over 3 years.

ZEX™ Igniter Core™ Technology uses a center electrode of pure copper, surrounded by a high purity nickel shell for durability. This special construction conducts electricity and heat over 5 times better than platinum and almost 3 times better than iridium. The result is more horsepower producing spark energy and greater detonation resistance than platinum or iridium can deliver.

Another groundbreaking development is Clean Fire™ Technology. It uses the spark from all three ground straps to aid in super-cleaning the center electrode. This burns off excess carbon and ensures you get maximum ignition power and superior resistance to fouling, even after hours of idling and stop and go traffic.

When you look at all this new plug technology, its clear ZEX™ has a better choice for those serious about performance. Two different plugs have been developed with optimized heat ranges for the specific modifications and power levels you have. For engines with bolt-on performance parts and computer tuning, up to 400+hp, our Power Tune™ Plug is ideal. For those engines with nitrous, blowers, or turbos, our Power Racer™ Plug will maximize performance in engines up to 700+hp.

These are direct replacement high performance spark plugs. Installation is quite simple, includes all of the special parts needed and should take no more than 1 hours to complete.

Application Part#/Price ZEX Power Tune™ Plugs Bolt-on performance parts and computer tuning applications Igniter Core Technology, copper core, nickel ground strap Single heat ranges colder spark plug ZEX-82070-8 $ 49.95 (set of eight) ZEX Power Racer™ Plugs Supercharged Hi-Boost, Turbos, N.O.S. applications Igniter Core Technology, copper core, nickel ground strap Two heat ranges colder spark plugs ZEX-82071-8 $ 49.95 (set of eight) Click-On Price to Order