aFe · New
aFe LARGE Bore HD Exhausts Cat-Back SS-409 EXH CB GM Diesel Trucks 01-05 V8-6.6L (td) LB7/LLY
MPN 49-14001 · Store SKU afe49-14001
Supplier stock checked 11/7/2026, 7:52:37 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
The Large Bore HD Performance Cat-Back exhaust features 4" 409 stainless steel tubing with smooth curves and increased size to help remove restriction and keeps exhaust gasses flowing smoothly. The OE style band-clamps and bayonet style hangers make sure this system installs cleanly and easily. You will see increased performance and lower EGTs from this system. This system does not come with a tip. Large Bore-HD 4 IN 409 Stainless Steel Cat-Back Exhaust System w/o Tip GM Diesel Trucks 01-05 V8-6.6L (td) LB7/LLY Large Bore-HD 4 IN 409 Stainless Steel Cat-Back Exhaust System w/o Tip LARGE Bore HD Cat-Back SS-409 System
Manufacturer fitment & guides
Check 49-14001 against the manufacturer’s application information below.
Part-specific notes
- Emissions acknowledgement required before purchase.
- California Proposition 65: Y