The Mercury LN-7 has been accused of lacking performance. You can change that with one simple little upgrade. Pull out your stock spark plugs and put in some high performance Mercury LN-7 spark plugs from AutoAnything. Our LN-7 spark plugs help your car perform like never before.
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That's because our Mercury LN-7 performance spark plugs have built in capacitors that super charge your car's horsepower and torque by up to 12% and speed up your throttle response. This translates into power you will feel all the way up your leg every time you touch the accelerator!