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hey guys i was wondering if any one has used these plugs?
there both a diferent design than regular plugs and i was looking through a old mustang book from when i hade my lx 5.0 [yeah i know lol ] and a 03 cobra gained 8 hp at the wheels from the brisk plugs and im not shure about the e3's
i use tr55's now
Leave the TR55s in any gains from a plug change is likely the variance from one dyno run to the other
Don't believe the snake oil salesmen that tell you plugs will give you a hp increase
I use Brisk LSG T plugs for off road racing in a 500 HP Jeep V6. They tested the best for racing fuel and extreme hot weather.
Honestly, Test spark plug heat ranges and brands to find out which spark plug is best for your engine, Driving , fuel, weather.
its safe to say that this forum has confirmed on ls motors, copper plugs do the best in our cars weather ur turbo, N/A or nitrous. may not last as long but the performance of the plug is better
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e3 or brisk performance plugs 
] and a 03 cobra gained 8 hp at the wheels from the brisk plugs and im not shure about the e3's
