3'' Downpipe Exhaust For 2011-2016 LML 6.6L Duramax Diesel | SPELAB

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Downpipe Exhaust
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$218.00 $118.00
$118.00

3'' Downpipe Exhaust For 2011-2015 LML 6.6L Duramax Diesel | SPELAB

This 3" turbocharger downpipe will increase exhaust flow, improving performance.  

Specifications:

Brand Name: SPELAB
Application:  Downpipe Exhaust
Material: Stainless Steel
Surface: Mirror Polish
Type: 3 Inch Downpipe for 2011 2012 2013 2014 2015 2015.5 2016 Chevrolet Silverado & GMC Sierra 2500 & 3500HD LML 6.6 Duramax Diesel 

Fitment:

2011, 2012, 2013, 2014, 2015, 2015.5, 2016 Chevrolet Silverado & GMC Sierra 2500 & 3500HD 6.6L Duramax pickup trucks. Will not fit Cab & Chassis trucks.

What does a downpipe do?

The downpipe on your turbocharged vehicle is directing the exhaust gases out of the turbine housing into the exhaust system. An aftermarket downpipe will typically be larger in diameter and either uses a high-flowing catalytic converter or remove the catalytic converter altogether.

By removing the factory downpipe and replacing it with a high flowing unit you are allowing the turbo to more efficiently move gases away from the turbine which creates more power. Since the factory restrictions are now gone you can increase the boost on the vehicle as the factory downpipe is a choking point for performance.

Customer Reviews

Based on 5 reviews
80%
(4)
20%
(1)
0%
(0)
0%
(0)
0%
(0)
C
Christopher Southworth
Great online store

I have a 13 Duramax and they have the best deletes on the market. And the up pipes and down pipe are awesome! Thank you spelab.

Thanks for the review!!!

C
Charles Boley
Awesome !!

I tell what, I've been working/ upgrading my diesel trucks for about 15 yrs. I wished I would have known about Spelab auto parts along time ago. To date best place I've delt with, unfortunately I just found them !! If you want fair prI tell what, I've been working/ upgrading my diesel trucks for about 15 hrs. I wished I would have known about Spelab auto parts along time ago. To date best place I've delt with, unfortunately I just found them !! If you want fair prices, fast shipI tell what, I've been working/ upgrading my diesel trucks for about 15 hrs. I wished I would have known about Spelab auto parts along time ago. To date best place I've delt with, unfortunately I just found them !! If you want fair prices, fast shipping, and someone who will stand behind what they sell, go with these guy's.
Charles. ping, and someone who will stand behind what they sell, go with these guy's.
Charles. ices, fast shipI tell what, I've been working/ upgrading my diesel trucks for about 15 hrs. I wished I would have known about Spelab auto parts along time ago. To date best place I've delt with, unfortunately I just found them !! If you want fair prices, fast shipping, and someone who will stand behind what they sell, go with these guy's.
Charles. ping, and someone who will stand behind what they sell, go with these guy's.
Charles.

Thanks for your comment, and I look forward to receiving your feedback on the pictures!

M
Mike Everhart
Fit perfect

Highly recommended! Great service and communication

Thank you for the information, we will give you a refund once we receive your return.

D
David Robinson
Good quality for cost

Parts are well made. One of the pipes didn't fit but everything else was exactly what I needed plus some so it worked out.

I'm very sorry for the problem, if there is a product installation problem, you can always contact us, we will try our best to help you!

W
Wayne Brewer
Excellent Set up

This exhaust straight pipe basically fell together. It was a piece of cake less than 30 minutes it was done.

Thanks for the review!!!Very much looking forward to your feedback pictures.

Customer Reviews

Based on 5 reviews
80%
(4)
20%
(1)
0%
(0)
0%
(0)
0%
(0)
C
Christopher Southworth
Great online store

I have a 13 Duramax and they have the best deletes on the market. And the up pipes and down pipe are awesome! Thank you spelab.

Thanks for the review!!!

C
Charles Boley
Awesome !!

I tell what, I've been working/ upgrading my diesel trucks for about 15 yrs. I wished I would have known about Spelab auto parts along time ago. To date best place I've delt with, unfortunately I just found them !! If you want fair prI tell what, I've been working/ upgrading my diesel trucks for about 15 hrs. I wished I would have known about Spelab auto parts along time ago. To date best place I've delt with, unfortunately I just found them !! If you want fair prices, fast shipI tell what, I've been working/ upgrading my diesel trucks for about 15 hrs. I wished I would have known about Spelab auto parts along time ago. To date best place I've delt with, unfortunately I just found them !! If you want fair prices, fast shipping, and someone who will stand behind what they sell, go with these guy's.
Charles. ping, and someone who will stand behind what they sell, go with these guy's.
Charles. ices, fast shipI tell what, I've been working/ upgrading my diesel trucks for about 15 hrs. I wished I would have known about Spelab auto parts along time ago. To date best place I've delt with, unfortunately I just found them !! If you want fair prices, fast shipping, and someone who will stand behind what they sell, go with these guy's.
Charles. ping, and someone who will stand behind what they sell, go with these guy's.
Charles.

Thanks for your comment, and I look forward to receiving your feedback on the pictures!

M
Mike Everhart
Fit perfect

Highly recommended! Great service and communication

Thank you for the information, we will give you a refund once we receive your return.

D
David Robinson
Good quality for cost

Parts are well made. One of the pipes didn't fit but everything else was exactly what I needed plus some so it worked out.

I'm very sorry for the problem, if there is a product installation problem, you can always contact us, we will try our best to help you!

W
Wayne Brewer
Excellent Set up

This exhaust straight pipe basically fell together. It was a piece of cake less than 30 minutes it was done.

Thanks for the review!!!Very much looking forward to your feedback pictures.

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