12" or 18 CF. I've heard of the Non-resonated version and it's not that bad. Now N/R + Test pipes is a different story...
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Kenwood DDX616 | Polk DB6501 | Llumar 23% tint | STi-R Clear Lens
SSR Type-F | F.I. 18" CF | Stillen Gen 3 | KW V3
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