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- USA
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
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Description
AFE 49-44001 Large Bore HD 4” Cat Back Exhaust SystemThe AFE 49 44001 Large Bore HD 4 Cat Back Exhaust System for the 2001 2005 GM 6. 6L Duramax is engineered to perform in the most extreme environments. This system is constructed from mandrel bent 4" stainless steel tubing for maximum flow, increased horsepower, increased torque and lower EGT's. This system is available in 4" cat back with muffler. Large Bore HD exhaust systems are the perfect combination of performance, fit and value. Features: 409
The AFE 49-44001 Large Bore HD 4” Cat Back Exhaust System for the 2001- 2005 GM 6.6L Duramax is engineered to perform in the most extreme environments. This system is constructed from mandrel bent 4" stainless steel tubing for maximum flow, increased horsepower, increased torque and lower EGT's. This system is available in 4" cat-back with muffler. Large Bore-HD exhaust systems are the perfect combination of performance, fit and value.
Features:
409 Stainless Steel
4” Mandrel Bent Tubing
Free-Flowing 24" Muffler For Powerful Sound
OE-Style Band Clamps for Leak Free Seal
Uses Factory Mounting Locations Easy Bolt-On Installation
Cat-Back
Made in the USA
Applications:
2001-2005 GM 6.6L Duramax (All Cabs & Beds)
WARRANTY INFO:
2 Year
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 1460 reviews
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Product Reviews
★★★★★ 5
The wire itself is perfect for finding its way through the contours of my ...
Size: 2 Colors each 10FT, Style: 10AWG
10ga. wire in red & black colors as advertised. Product came quick & unharmed. The wire itself is perfect for finding its way through the contours of my vehicle becaue of its "rope-like" feel (unlike a stiff wire). Would buy again, because so far, so good. Hope that helps.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 22, 2018
★★★★★ 5
Good purchase!!
Size: 2 Colors each 10FT, Style: 10AWG
Just what I was looking for!!
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Reviewed in the United States on February 15, 2021
★★★★★ 5
Good product
Size: 25FT, Color: Black+Red
Good wire and there is enough in the rolls
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Reviewed in the United States on April 28, 2026
★★★★★ 5
Nice cables, thick
Size: 25FT, Color: Black+Red+Blue+Brown
Great quality, but due to being CCA those won't fit most 10awg crimps, will need 8awg crimps.
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Reviewed in the United States on April 30, 2026
★★★★★ 5
Works no issues
Size: 25FT, Color: Black+Red
Works no issues
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Reviewed in the United States on May 7, 2026