4-2-1 or 4-1
4-1 for topend...but ur better off with a 4-2-1...why would u only want a topend gain anyways...ull be a lot happier with one that makes improvments throughout the powerband
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civboy115
Honda Civic / Del Sol (1992 - 2000)
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Feb 4, 2004 12:23 PM



