Pulstar be1i Iridium Pulse Spark Plug, Pack of 1 Automotive Parts and Accessories (Pulstar)
List Price: $13.95 Price: $11.99 You Save:$1.96 (14%)
Up to 12% more horsepower and torque allows for higher towing capacity and overall power
Built-in capacitor element stores and delivers a much more powerful spark, providing for more complete combustion
A lifetime limited warranty
Bosch (4417) FGR7DQP Platinum +4 Spark Plug, Pack of 1 Automotive Parts and Accessories (Bosch)
List Price: $10.68 Price: $3.87 You Save:$6.81 (64%)
Revolutionary surface air gap firing technology featuring four yttrium-enhanced ground electrodes delivers the longest, most powerful spark for ultimate engine performance
Never requires gapping, the electrode gap is factory-set and never requires adjustment
Electrode gap is factory set to provide ease of installation - never requires adjustment
Champion (9201) Iridium Spark Plug, Pack of 1 Automotive Parts and Accessories (Champion)
List Price: $5.79 Price: $5.78 You Save:$0.01 (%)
Iridium center electrode with platinum tipped v-trimmed ground electrode
Extremely long life plug
Autolite XP3924 Xtreme Performance Iridium Spark Plug, Pack of 1 Automotive Parts and Accessories (Autolite)
List Price: $6.99 Price: $5.42 You Save:$1.57 (22%)
Original Equipment (OE) form, fit and function five-year limited warranty
Multi-rib ceramic insulator to help prevent misfires
Iridium-enhanced 6mm center finewire electrode for improved ignitability, durability and wear resistance
Autolite AP3924 Platinum Spark Plug, Pack of 1 Automotive Parts and Accessories (Autolite)
List Price: $2.99 Price: $2.16 You Save:$0.83 (28%)
Contains 1 spark plug
Better performance
More durability
Spark Plug Gap - NGK Spark Plugs - Tech Video
Correct way to check, set and adjust your spark plug gap. NGK Spark Plugs USA.