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Boost and Nitrous Ready
Non-Projected Tip Spark Plug
Colder Than Stock Plugs
What's in the Box
(8) NGK BR7EF Spark Plugs
NGK BR7EF 3346 Spark Plugs
When upgrading your 1996-2014 4.6L, 5.4L, and 5.8L with boost or nitrous, it is essential to have the correct spark plug. The stock spark plugs are not capable of handling the strain and additional heat caused by adding a high amount of boost or nitrous. The NGK BR7 spark plugs are perfect for Lightning, GT500, Cobra and GT owners looking to have the best spark plug for their supercharged, turbocharged or nitrous vehicles. The non-projected tip design of these spark plug helps to efficiently dissipate excess cylinder heat associated with high boost large and nitrous systems.
These NGK BR7 spark plugs are colder than stock and are not designed to be used in naturally aspirated applications. These spark plugs are great for 96-14 Mustang 4.6L, 5.4L, and 5.8L modular motors and 99-04 Lightning using aftermarket superchargers, turbochargers, smaller supercharger pulley and/or nitrous. Please check with your tuner for proper recommended spark plug gap.
Spark Plug Socket
Spark Plug Gapper
Step 1: Disconnect The Negative Battery Cable.
Step 2: Remove the factory air box if equipped for easier access to the spark plugs
Step 3: Disconnect the spark plug wires, making sure to remember the correct order they we... more