Quick view NGK TR6IX Iridium Spark Plugs NGK TR6IX Iridium Spark Plugs Sold individually. For a general rule of thumb, we normally recommend NGK TR6IX spark plugs gapped .030 for GT500's running less than 15psi boost, but always consult... $7.49 Compare
Quick view NGK LTR6IX-11 Spark Plug NGK LTR6IX-11 Spark Plug NGK spark plug for Ford Mustang and F-150 Coyote 5.0L. Colder than factory plug, for use with aftermarket mods. $7.99 Add to Cart Compare
Quick view NGK LTR7IX-11 Spark Plug NGK LTR7IX-11 Spark Plug Spark plugs for boosted Coyote 5.0L applications $7.49 Add to Cart Compare
Quick view NGK TR6 Spark Plugs NGK TR6 Spark Plugs Sold individually. For a general rule of thumb, we normally recommend NGK TR6 spark plugs gapped .030 for GT500's running less than 15psi of boost, but always consult your tuner... $3.00 Compare
Quick view NGK TR7IX Iridium Spark Plugs NGK TR7IX Iridium Spark Plugs Sold individually. For a general rule of thumb, we normally recommend NGK TR7IX spark plugs gapped .028 for GT500's running 16-19 psi boost, but always consult your... $7.49 Compare
Quick view NGK TR8IX Iridium Spark Plugs NGK TR8IX Iridium Spark Plugs Sold individually. For a general rule of thumb, we normally recommend NGK TR8IX spark plugs gapped .022 for GT500's running 20+ psi boost, but always consult your... $7.49 Add to Cart Compare
