We will be closed for the Holidays: December 23rd - 26th.
Any orders placed during this time will be shipped on December 27th.
  Loading. Please wait.
FREE 3-Day SHIPPINGdetails...

Shipping is free via UPS Ground or 3-Day Select for orders of $25 or more (excludes transmissions). If the transit time using UPS Ground Shipping will exceed 3 days to your location, we will upgrade the shipping service to UPS 3-Day Select, at no cost to you.

Free shipping is available within the continental U.S. only. Shipping charges will apply to all other destinations.

Slide background
Slide background
Slide background
Slide background
Slide background
Slide background
Slide background


Verify if it fits
Part #
Cat-Back System 409S - DOR/S - American Thunder - Moderate Sound
Exhaust Systems / Kits - American Thunder
Qty: Add to Cart +
Application Summary
2011-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 Crew Cab and Double Cab models with 6.2L V8 gas engine.
Product Attributes
Muffler Material 409S Stainless Steel Exhaust Series American Thunder
Single Dual Dual Sound Level Moderate
Exit Position DOR/S Mount Type Uses factory hangers
Tubing Material 409S Stainless Steel Tubing Diameter (in) 2.5
Muffler Part Number Kit Only Muffler Series 50 Series HD
Muffler Type Welded Baffle Muffler Shape Oval
Muffler Finish Gray Muffler Quantity 1
Muffler Inlet Diameter (in) 3.5 Muffler Outlet Diameter (in) 2.5
Tip Style Double wall Tip Shape Round
Tip Material 304 Stainless Tip Finish Polished
Tip Logo Embossed Tip Cut Angle
Tip Edge Style Cut Tip Diameter (in) 3.5
Tip Length (in) 13 Tip Quantity 2
Heat Shield No Catalytic Converter Included No
System Type Cat-back