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The MagnaFlow Street Series cat‑back for GM 1500 Extended Cab (1999–2002) uses mandrel‑bent 3in piping and a single straight‑through muffler to deliver dyno‑proven flow. The system exits on the passenger side with a 4in polished welded tip and replaces stock components from near the catalytic converter back. Direct‑fit design from 3D scanning makes DIY installation straightforward, with corrosion‑resistant stainless construction and a limited finish warranty.
MagnaFlow Sys C/B GM 1500 Ext Cab 99-02
