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The aFe Large Bore HD cat-back exhaust for GM diesel trucks with the 6.6L V8 (2001–2005 LB7/LLY) uses 4" mandrel-bent 409 stainless tubing to improve flow and reduce exhaust gas temps. OE-style band clamps and bayonet hangers make for straightforward installation. A high-flow muffler increases horsepower and torque while lowering EGTs; system ships without a tip and includes a limited parts warranty.
aFe LARGE Bore HD Exhausts Cat-Back SS-409 EXH CB GM Diesel Trucks 01-05 V8-6.6L (td) LB7/LLY
