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The aFe Twisted Steel up-pipe is a replacement up-pipe for GM diesel trucks 2001–2004 with the 6.6L LB7 V8 turbo diesel. Constructed from 2 in mandrel-bent 304 stainless steel with a .120 in wall, it uses heavy-duty 2 in inner-lined flex tubing and laser-cut 3/8 in thick flanges to provide a complete 360° sealing surface for a leak-free connection in the turbo exhaust path.
aFe Twisted Steel Up-Pipe GM Diesel Trucks 01-04 V8-6.6L (td) LB7
