Thread: Question about exhaust.
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Old Thu, February 12th, 2009, 09:33 PM
04FX4 04FX4 is offline
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Default Question about exhaust.
I want to up grade my exhaust. I do not want to loose any hp or tq.I am leaning towards magniflow but what is better. SI/SO or SI/DO? I see bill always saying SI/DO so which one is best?
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