aFe  49-04053NM ATLAS 4" Aluminized Steel Down-Pipe Back Exhaust System for GM Duramx LML 6.6L  2015--2016

aFe 49-04053NM ATLAS 4" Aluminized Steel Down-Pipe Back Exhaust System for GM Duramx LML 6.6L 2015--2016

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aFe POWER introduces a true 4" Down-Pipe Back ATLAS exhaust system for 2015.5-2016 GM Diesel Trucks with V8-6.6L (td) engine. This ATLAS exhaust system is constructed from 4" mandrel bent aluminized steel tubing for maximum flow, increased horsepower and torque. This down-pipe back exhaust system is designed with a unique tapered flange to fit the flanged down pipe found on models built after July 2014. This unit includes a muffler delete-pipe which is used in place of the muffler for a true race-inspired sound and maximum flow. ATLAS exhaust systems are the perfect combination of performance, fit and value.

Installation is a Snap:
This system uses factory mounting locations providing stability and hassle-free installation.

Leak-Free Seal:
A unique high quality OE style tapered flange is used for a complete 360 degree sealing surface

Aggressive Sound:
A muffler delete-pipe is used in place of the muffler for a true race-inspired sound and maximum flow.

OE Fit:
OE style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The Bayonet tip holds the hanger bushing in place for an OE style fit that does not change with time.

Flow and Performance:
ATLAS exhaust systems are constructed of 5" mandrel bent aluminized steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower and torque .

These kits will only fit models manufactured after July 2014 equipped with a flanged down pipe. Does not fit cab & chassis, Fits 133.7 " to 167.7" wheel bases only.


   YEAR         MAKE     MODEL     ENGINE
2015-2016 CHEVY SILVERADO   2500/3500 6.6L DURAMAX
2015-2016    GMC SIERRA   2500/3500 6.6L DURAMAX

Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

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When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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Products not for sale or use in California
or on Emission Controlled Vehicles