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- USA
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
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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
4.7 ★★★★★
Based on 219 reviews
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Product Reviews
★★★★★ 5
great quality and stylish too
Size: 38W x 28L, Color: Dark Blue Vintage
the pants are high quality and stylish too. very comfortable. i am happy with the purchase.
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Reviewed in the United States on March 15, 2026
★★★★★ 3
Comfortable but color bleeds.
Size: 33W x 30L, Color: Dark Wash
Good comfortable fit. Only problem was washing, the color bleeds.
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Reviewed in the United States on May 16, 2026
★★★★★ 5
Good buy
Size: 28W x 34L, Color: Medium Indigo
My 16-y/o 6' grandson wears the 28"-34". Not easy to find. These fit him well. Material is regular blue jean. Good value
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Reviewed in the United States on April 21, 2026
★★★★★ 4
Nice jeans, but too tight in the thighs
Size: 31W x 28L, Color: Light Wash
I liked these jeans overall — good quality and the stretch feels nice — but they were a little too tight in the thighs for me. If you’ve got more athletic legs, you might want to size up or try a different fit.
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Reviewed in the United States on November 14, 2025
★★★★★ 5
Best brown jeans for the price!!!
Color: Deep Brown, Size: 32W x 32L
Really nice vibrant brown color in person. They fit perfectly and the length is spot on. Look great 4 Less!!
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Reviewed in the United States on June 3, 2026