Glasspacks are the biggest power robbers EVER. If you want a good sound go with a Dynomax Bullet. Their a glasspack shape but their hollow inside and flow like a river. I have them on my car and picked up more bottem end than when i had open headers.
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68 Camaro
Gene Fulton 632ci Two stages of Jug
8.41 164mph Rockingham 1-26-03
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