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I also have the greddy sp elite axle back but matched with a borla uel header. Cold start is a bit loud but once you do to idle it sounds great
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2013 Scion Frs AT in Whiteout, Borla UEL header, Greddy SP Elite AxleBack. Kraftwerks C38 Supercharger tuned by Moto East and 2 kid seats in the back.  |