Downpipe Exhaust 3" for 2011-2015 Chevy GMC Duramax Diesel 6.6L LML GM8427
- Buy 3 for $158.00 each and save 1%
- Buy 5 for $154.75 each and save 3%
- Buy 10 for $149.85 each and save 7%
11-15 Chevy Silverado/GMC Sierra 2500HD 3500HD, 6.6L Duramax Diesel, 3", T304 Stainless Steel, Downpipe/Clamp/Heat Wrap
Features
- Inlet/ Outlet Sizes: 3 ''OD / 3 ''OD
- Piping Diameter: 3"
- Part Number: GM8424
- Made of High Quality T-304 Stainless Steel with Computerized Mandrel-Bends i.e. Maximizing Smoothest Exhaust Airflow
- High Performance JDM Racing Design
- TIG Welded CNC Machine Flange for Strength and Durability
- Greater Heat Retention
- 20% Greater Flow Over Stock
- Richer Diesel Sound
- Will not Affect Emissions (DPF system or the Urea injection system)
- Gains of +21 HP and +24 lb/ft Torque
- Professional Installation is Highly Recommended
- No Instruction Included
Fitment
- 2011-2015 Chevrolet Silverado & GMC Sierra 2500 & 3500HD 6.6L Duramax Diesel
- Does Not Fit 2015.5+ Model With Flange Outlet
- Not fit Cab & Chassis trucks
Package
- 1 x 3" Stainless Steel Downpipe
- 2 x Stainless Steel Hose Clamps
- 1 x Roll of Titanium Heat Wrap
⚠️WARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
| VEHICLE NAME | Year | Engine |
|---|---|---|
| Chevrolet Silverado 2500 HD | 2011~2015 | 6.6L |
| Chevrolet Silverado 3500 HD | 2011~2015 | 6.6L |
| GMC Sierra 2500 HD | 2011~2015 | 6.6L |
| GMC Sierra 3500 HD | 2011~2015 | 6.6L |
- Fast and Free Shipping
If an order is placed before 1 pm EST on a business day we ship the order the same day.
If it is placed after 1 pm EST or over the weekend, we will ship the order out the following business day. Depending where you are located in the 48 contiguous states, our shipping courier will take approximately 1-6 business days to deliver the tires to you from any of our four main warehouses located in Tennessee, Texas, and Nevada and/or our smaller warehouses which are located across the country.
Due to the nature of shipping, packages may be separated at the shipping courier's facility and not delivered on the same day, even though shipped together. You'll receive a master tracking number via email to check on the courier's website for updates. For instance, you may receive 3 tires on one day and the 4th on the following day, or one tire one day and another the day after. We understand this may be inconvenient at times but it's beyond our control.
For a more specific time frame contact us via e-mail info@unbeatabletire.com or phone 901-547-5866.
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