I have the set-up with MAC long tubes 1-5/8" and a regular off road MAC H-pipe and the back section is the dumps. My dad has the whole system with the MAC hi-flow cats and it roars at WOT.
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D/R 10108 NMRA Drag Radial, 25.5 chassis, F1R
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FOR SALE Stainless Steel Torque Box Supports
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