DTR Design TSX 4-2-1 street header

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DTR design CL7/CL9 TSX 4-2-1 street header available in standard 44mm stepped or 48mm stepped big tube tri-Y Max. 4-2-1 design for midrange and top end power. 304 stainless steel w ith all supplied adapter pipe gaskets and bypass hardware. US modified 2.5-3 v-band transition option available for high output 48mm include female v-band ring and clamp for exhaust retrofit. 48mm Tri-Y Max only recommend for max effort high compression builds. Show more