MBRP 15.5-16 GM Duramax 6.6L 3in Down Pipe Kit
SKU: 4219413519

MBRP 15.5-16 GM Duramax 6.6L 3in Down Pipe Kit

Sale price$132.75 Regular price$147.50
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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For Your Every Summer RSVP, with Code: SUMMER15

Description

MBRP 15.5-16 GM Duramax 6.6L 3in Down Pipe KitReplace that restrictive factory downpipe with a MBRP direct replacement downpipe for more flow, fuel economy, and better performance. Removal of OEM catalytic converters may be a violation of emissions laws in your jurisdiction. Ensure that the intended use of this product is permitted. Not for sale or use in the state of California. Installation Instructions Installation Instructions This Part Fits: Year Make Model Submodel 2015 2017 Chevrolet

Replace that restrictive factory downpipe with a MBRP direct replacement downpipe for more flow, fuel economy, and better performance. Removal of OEM catalytic converters may be a violation of emissions laws in your jurisdiction. Ensure that the intended use of this product is permitted. Not for sale or use in the state of California.

Installation Instructions
Installation Instructions

This Part Fits:

Year Make Model Submodel
2015-2017 Chevrolet Silverado 2500 HD High Country
2015-2017 Chevrolet Silverado 2500 HD LT
2015-2017 Chevrolet Silverado 2500 HD LTZ
2015-2017 Chevrolet Silverado 2500 HD WT
2015-2017 Chevrolet Silverado 3500 HD High Country
2015-2017 Chevrolet Silverado 3500 HD LT
2015-2017 Chevrolet Silverado 3500 HD LTZ
2015-2017 Chevrolet Silverado 3500 HD WT
2015-2017 GMC Sierra 2500 HD Base
2015-2017 GMC Sierra 2500 HD Denali
2015-2017 GMC Sierra 2500 HD SLE
2015-2017 GMC Sierra 2500 HD SLT
2015-2017 GMC Sierra 3500 HD Base
2015-2017 GMC Sierra 3500 HD Denali
2015-2017 GMC Sierra 3500 HD SLE
2015-2017 GMC Sierra 3500 HD SLT
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 4219413519

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Benjamin Butler
Draper, US
★★★★★ 5
Best socks ever
Size: Large, Color: (100) White / White / Mod Gray
Best athletic socks I’ve bought. I usually buy UA socks anyway and these are the best. Super soft and comfy. Fit snug and my feet don’t slide around in them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 9, 2026
S
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Sigrid Inger
Los Angeles, US
★★★★★ 5
Much much better than the standard sock
Size: X-Large, Color: (001) Black / Black / Castlerock
These socks are superb. Lots of padding in the right places, snug where it should be snug & loose where you don't want it to bind. They are marked with an 'L' for left foot, & 'R' for the right foot (it makes a difference in the fit being perfect. They stay up on your heel & don't slide down
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
C
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Chris
Birmingham, US
★★★★★ 4
4 lefts vs 2 rights
Size: Medium, Color: (001) Black / Black / Castlerock, Size: Medium, Color: (001) Black / Black / Castlerock
I ordered a set of three. I ended up with four left socks and two right socks lol. Granted it doesn’t matter unless you’re OCD. JEEZ. Love the socks but not the attention to detail the sock company did on matching left/right marked socks.
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Reviewed in the United States on May 28, 2026
J
Verified Purchase
Jill
Pawtucket, US
★★★★★ 5
My favorite socks
Size: Medium, Color: (001) Black / Black / Castlerock
I love love, love the left and right socks one has an L one has an R and they fit so well and they’re so comfy for running jogging or walking. They are my favorite socks.
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Reviewed in the United States on January 8, 2026
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vbgirlfla
Whiting, US
★★★★★ 5
Hold up to tough wear - definitely recommend
Size: X-Large, Color: (001) Black / Black / Castlerock
These are my teens favorite socks. We've ordered multiple sets. Given that he tends to wear then as slippers I am really impressed with how they hold up. The extra large size is great for bigger feet. They wash well and I didn't notice any shrinkage, fading or pilling. This set is going to college with him.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2026

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